Routine maintenance(v600 r003c00 02)

HUAWEI NetEngine80E/40E RouterV600R003C00

Routine Maintenance

Issue 02

Date 2011-09-10

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 02 (2011-09-10) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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http://www.huawei.com

mailto:[email protected]

About This Document

PurposeNOTE

l This document takes interface numbers and link types of the NE40E-X8 as an example. In workingsituations, the actual interface numbers and link types may be different from those used in thisdocument.

l On NE80E/40E series excluding NE40E-X1 and NE40E-X2, line processing boards are called LineProcessing Units (LPUs) and switching fabric boards are called Switching Fabric Units (SFUs). Onthe NE40E-X1 and NE40E-X2, there are no LPUs and SFUs, and NPUs implement the same functionsof LPUs and SFUs to exchange and forward packets.

This document describes routine maintenance for the HUAWEI NetEngine80E/40E in terms ofroutine maintenance items, maintenance guidelines, maintenance records, and dangerousoperations.

This document describes the procedure and method for routine maintenance for the HUAWEINetEngine80E/40E.

Related VersionsThe following table lists the product versions related to this document.

Product Name Version

HUAWEI NetEngine80E/40ERouter

V600R003C00

Intended AudienceThis document is intended for:

l Network monitoring engineers

l On-site maintenance engineers

l System maintenance engineers

HUAWEI NetEngine80E/40E RouterRoutine Maintenance About This Document


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Symbol ConventionsThe symbols that may be found in this document are defined as follows.

Symbol Description

DANGERIndicates a hazard with a high level of risk, which if notavoided, will result in death or serious injury.

WARNINGIndicates a hazard with a medium or low level of risk, whichif not avoided, could result in minor or moderate injury.

CAUTIONIndicates a potentially hazardous situation, which if notavoided, could result in equipment damage, data loss,performance degradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or savetime.

NOTE Provides additional information to emphasize or supplementimportant points of the main text.

Command ConventionsThe command conventions that may be found in this document are defined as follows.

Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in brackets [ ] are optional.

{ x | y | ... } Optional items are grouped in braces and separated byvertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated byvertical bars. One item is selected or no item is selected.

{ x | y | ... }* Optional items are grouped in braces and separated byvertical bars. A minimum of one item or a maximum of allitems can be selected.

[ x | y | ... ]* Optional items are grouped in brackets and separated byvertical bars. Several items or no item can be selected.

&<1-n> The parameter before the & sign can be repeated 1 to n times.

# A line starting with the # sign is comments.



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Change HistoryChanges between document issues are cumulative. The latest document issue contains all thechanges made in earlier issues.

Changes in Issue 02 (2011-09-10)The second commercial release. There is no update compared with the previous issue.

Changes in Issue 01 (2011-05-30)Initial field trial release.



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Contents

About This Document.....................................................................................................................ii

1 Overview of Routine Maintenance............................................................................................11.1 Objective of Routine Maintenance.....................................................................................................................21.2 Maintenance Rules.............................................................................................................................................21.3 Classifications of Routine Maintenance.............................................................................................................3

1.3.1 Daily Routine Maintenance.......................................................................................................................31.3.2 Periodic Routine Maintenance...................................................................................................................4

2 Routine Maintenance Items........................................................................................................52.1 Introduction to Routine Maintenance Items.......................................................................................................62.2 Maintenance Items and Operations....................................................................................................................72.3 Dustproof Maintenance of the Device..............................................................................................................22

2.3.1 Maintaining the Air Filter of the NE40E-X16.........................................................................................232.3.2 Maintaining the Air Filter of the NE40E-X8...........................................................................................262.3.3 Maintaining the Air Filter of the NE40E-X3...........................................................................................282.3.4 Maintaining the Air Filter of the NE80E.................................................................................................302.3.5 Maintaining the Air Filter of the NE40E-8.............................................................................................332.3.6 Removing Dust from Fan Modules.........................................................................................................352.3.7 Removing Dust from Boards...................................................................................................................362.3.8 Removing Dust from Optical Interfaces and Connectors........................................................................37

2.4 Backup and Restoration....................................................................................................................................382.4.1 Backing Up the Configuration File.........................................................................................................382.4.2 Restoring the Configuration Files............................................................................................................40

2.5 Grounding System Maintenance......................................................................................................................412.5.1 Checking the Grounding System.............................................................................................................412.5.2 Measuring the Grounding Resistance......................................................................................................41

3 Operations Involving Risks......................................................................................................433.1 Hardware Operations Involving Risks.............................................................................................................443.2 Command Executions Involving Risks............................................................................................................45

4 Commonly Used Commands for Maintenance.....................................................................47

5 Reference Maintenance Items and Operations......................................................................50

A Glossary........................................................................................................................................66

HUAWEI NetEngine80E/40E RouterRoutine Maintenance Contents


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B Acronyms and Abbreviations...................................................................................................68

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1 Overview of Routine Maintenance

About This Chapter

This chapter describes maintenance stipulations, classifications of routine maintenance, andmaintenance record forms.

Routine maintenance is carried out regularly during the normal running of the device. It is doneto detect and remove the defects or hidden problems on time. It is essential for the long-termsecure and stable running of the device.

NOTEThis manual only elaborates how to maintain the device through command lines. When maintaining thedevice through Huawei network management system (NMS), refer to the relevant manual.

1.1 Objective of Routine MaintenanceThis section describes the purpose of routine maintenance.

1.2 Maintenance RulesThe rules that must be observed during maintenance.

1.3 Classifications of Routine MaintenanceThe daily routine maintenance and periodic routine maintenance.

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1.1 Objective of Routine MaintenanceThis section describes the purpose of routine maintenance.

Routine Maintenance is a preventive maintenance measure conducted during the normaloperation of the device. Routine Maintenance helps to discover the defects or possible troublesof the device and remove them, on time. Routine maintenance guarantees long-term, stable, andreliable operation of the device.

NOTE

This manual describes the procedure for maintaining the device through the command line interface (CLI).To maintain the device through the Huawei network management system (NMS), refer to the relevantmanual.

1.2 Maintenance RulesThe rules that must be observed during maintenance.

Routine maintenance aims at discovering hidden defects or troubles on a device in time to ensuresystem stability. When a fault occurs, initiate the troubleshooting flow according to the"HUAWEI NetEngine80E/40E Router Troubleshooting". This document does not mention theprocedures for troubleshooting.

To improve the performance of the device, ensure the secure and stable running of the device,and lower the maintenance cost, abide by the following basic rules during maintenance:

Environment of the Equipment Rooml Conform to relevant national or industrial standardsl Keep the room clean, tidy, dustproof, and moistureproofl Prevent the growth of animalcules such as fungi and mildewl Prevent rodents and insects from entering the room

Operating Specificationsl Password management (for the system administrator)

Keep management-level passwords safely and modify them regularly, and assign differentpasswords to people with specific operation rights to ensure system security

l Key operationsMaintain records about all key operations such as board switching, system resetting andsoftware loading, and analyze the feasibility and take backup, emergency and securemeasures before such key operations

l Data modificationCarry out authorization and control on data modification, back up the data beforemodification, and make records about modification

l Anti-static specificationsWear anti-static wrist strap when operating the device and store the damaged boards in theanti-static bag instead of the cabinet to avoid causing other faults



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Maintenance Specificationsl Routine maintenance

Give importance to preventive maintenance, especially to routine maintenance, andestablish scientific and strict regulations to ensure efficient device maintenance

l Qualifications for the maintenance personnelBefore undertaking maintenance, get trained on basic maintenance theory and procedures,emergency handling procedures, operating specifications and security rules

l Periodic checkCarry out a check periodically and maintain records mentioned in this manual

l Detailed records about the problemMaintain detailed records of the initial information on the problem and contact HuaweiCustomer Service Center or the local Huawei office on time

l No installation of non-standard softwareNeither install nor run non-standard software that includes firewall, anti-virus software,game, and pirated software on the terminals; otherwise, serious faults in the device may becaused

l No use of non-standard software to operate the databaseExcept the delivery-attached software, do not use other software to access or modify thedatabase; otherwise, serious faults may be caused

Supplementsl Parts inventory

Keep enough spare parts on hand in case of failure, and have failed boards fixed as soonas possible (for the operators)

l Emergency solutionsIn case of emergency, keep composed instead of panic, perform the troubleshootingprocedures according to the "HUAWEI NetEngine80E/40E Router EmergencyMaintenance" and contact Huawei Customer Service Center or the local Huawei office ontime if the fault cannot be removed

1.3 Classifications of Routine MaintenanceThe daily routine maintenance and periodic routine maintenance.

Based on the maintenance period, routine maintenance is classified into:

l Daily routine maintenancel Periodic routine maintenance

1.3.1 Daily Routine Maintenance

Daily routine maintenance, which is carried out every day by the general maintenance personnel,includes:

l Checking the environment of the equipment rooml Checking the power supply system



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l Checking the alarm systeml Checking the operation of the device

Daily routine maintenance is used to:

l Find out alarms or other problems on time and deal with them to maintain the operation ofthe device and lower the failure rate.

l Find out abnormalities of the links on time and deal with them to ensure the normal services.l Have a real-time knowledge about the operation of the device and the network to improve

the efficiency of troubleshooting.

1.3.2 Periodic Routine Maintenance

Periodic routine maintenance, which is more complicated and mainly carried out by themaintenance personnel who have received professional trainings, includes:

l Checking the cablesl Measuring the grounding resistancel Removing the dust from the device

Periodic maintenance is used to:

l Ensure the secure and stable running of the device for a long period of time.l Check for problems such as device aging, function failures, and performance degrade. This

is done by regularly checking, testing, cleaning the devices and backing up the data.

Thus, you can take proper measures to avoid faults.



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2 Routine Maintenance Items

About This Chapter

This chapter describes maintenance items, operation guide and expected results during eachmaintenance period.

2.1 Introduction to Routine Maintenance ItemsThe items for the routine maintenance according to the maintenance periods.

2.2 Maintenance Items and OperationsThis chapter lists the routine maintenance items.

2.3 Dustproof Maintenance of the DeviceHow to remove dusts from the device.

2.4 Backup and RestorationHow to back up and restore data.

2.5 Grounding System MaintenanceHow to maintain the grounding system.

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2.1 Introduction to Routine Maintenance ItemsThe items for the routine maintenance according to the maintenance periods.

NOTE

l No installation tools, meters, and related instruments are delivered with the NE80E/40E.

l Meters must be calibrated before use.

The stable running of the NE80E/40E depends on the comprehensive network plan. But at thesame time, routine maintenance and monitoring are essential.

Routine maintenance items guide you to carry out routine, weekly, monthly, and yearlymaintenance on the NE80E/40E.

The items include:

l Environment of the equipment rooml Environment inside the cabinetl Running status of the boardl Status of the portl Routing protocol

You can carry out maintenance and management according to the maintenance items during therunning of the device. Meanwhile, you can supplement or skip some maintenance items asrequired.

Table 2-1 shows all the items involved in this manual.

Table 2-1 Routine maintenance items

Maintenanceperiod

Maintenance item

Daily Environment of the equipment room

Alarm and log

Device temperature and voltage

Fan module and power module status

CPU usage and memory usage

Monthly System clock

Traffic on an interface

Board running status

OSPF/ISIS/BGP neighbor relationship status

Routing information

Administrative user control



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Maintenanceperiod

Maintenance item

Telnet login control

Anti-attack detection

FTP password control

Password change

Backup and restoration

Yearly Label check

Air filter cleaningNOTE

The NE80E/40E-X1 and NE80E/40E-X2 series do not have any air filter, andtherefore air filter cleaning is not required.

2.2 Maintenance Items and OperationsThis chapter lists the routine maintenance items.



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Table 2-2 Maintenance Items and Operations

Maintenanceitem

Maintenanceperiod

Guidance Specification Checkresults

EnvironmentoftheEquipmentRoom

Temperature

Daily Observe thethermometer andrecord it

l The long-term workingtemperature of the equipmentroom should range from 0ºC(32ºF) to 45ºC (113ºF) whilethe short-term one should rangefrom -5ºC (23ºF) to 55ºC(131ºF).For the X1 and X2 models ofthe NE80E/40E, the long-termworking temperature of theequipment room should rangefrom -5ºC (23ºF) to 50ºC(122ºF) while the short-termone should range from -20ºC(-4ºF) to 60ºC (140ºF).

l If the temperature is not withinthe normal range for a longtime, overhaul or replace the airconditioning system.

l The cooling function and theswitches of air conditioners arein good condition.

Humidity Daily Observe thehygrometer andrecord it

l The relative humidity for thelongterm working environmentshould range from 5% to 85%while that of the short-term oneshould range from 5% to 95%.

l If the relative humidity is toohigh, install dehumidifyingdevices. If the relativehumidity of the equipmentroom is too low, installhumidifying devices.



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Maintenanceitem

Maintenanceperiod


BasicConfigurationsoftheDevice

Alarm Daily displaytrapbuffer

l There is no alarm normally.l If any alarm is displayed,

record it. For the alarm whoseseverity level is higher thancritical, analyze and resolve itat once.

The bolded information as shownin the following output is severitylevel:<HUAWEI> display trapbufferTrapping Buffer Configuration and contents:enabledallowed max buffer size : 1024

actual buffer size : 256channel number : 3 , channel name : trapbufferdropped messages : 0overwritten messages : 131current messages : 1#Nov 16 2009 15:33:06 PE-1 SRM_BASE/1/ENTITYRESUME: OID 1.3.6.1.4.1.2011.5.25.129.2.1.10 Physical entity is detected resumed from failure. (EntityPhysicalIndex=16908289, BaseTrapSeverity=2, BaseTrapProbableCause=67719, BaseTrapEventType=5, EntPhysicalContaine-dIn=16908288, EntPhysicalName="LPU 2", RelativeResource="SFP", ReasonDescription="LPU 2 is failed, EAGF SFP 0 of PIC0 is abnormal, Resume")



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Maintenanceitem

Maintenanceperiod


Log Daily Run the displaylogbuffercommand.

l Repeated information shouldnot be displayed in the log.

l If it occurs, analyze and resolveit on time.

The bolded information as shownin the following output is repeatedinformation.<HUAWEI> display logbufferLogging buffer configuration and contents:enabledAllowed max buffer size : 1024Actual buffer size : 512Channel number : 4 , Channel name : logbufferDropped messages : 0Overwritten messages : 3Current messages : 3

Nov 13 2009 18:12:18 HUAWEI %%01SRM/3/LPURESET(l):LPU3 reset, the reason is LPU board LOAMNET init failed and reset lpu.Nov 13 2009 18:10:22 HUAWEI %%01SRM/3/LPURESET(l):LPU3 reset, the reason is LPU board LOAMNET init failed and reset lpu.Nov 13 2009 18:08:26 HUAWEI %%01SRM/3/LPURESET(l):LPU3 reset, the reason is LPU board LOAMNET init failed and reset lpu.

Configuration files

Monthly

Run the displaycurrent-configurationand the displaysaved-configurationcommands

l The current configurationsshould be the same as thosesaved.

l The configurations shouldmeet the requirements.

CF card Monthly

Run the dircommand

All the files in the CF card memoryshould be useful; otherwise, deletethem using the delete /unreserved command.



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Maintenanceitem

Maintenanceperiod


OperationoftheDevice

Temperature

Daily Run the displaytemperaturecommand todisplay thetemperatures ofthe boards andrecord them

The temperatures of the boardsshould be in the given range.Temp(C): indicates the currenttemperature, In normal situations,Temp(C) should be less thanMinor.<HUAWEI> display temperatureSlotID9 : Base-Board, Unit:C, Slot9PCB I2C Addr Chl Status Minor Major Fatal Adj_speed Temp TMin Tmax (C)-----------------------------------------------------------------SRUA 1 1 0 NORMAL 66 78 90 56 67 40SRUA 1 2 0 NORMAL 57 69 80 46 57 32SRUA 1 3 0 NORMAL 55 67 78 44 55 31SRUA 1 4 0 NORMAL 64 72 80 46 57 33



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Maintenanceitem

Maintenanceperiod


Voltage Daily Run the displayvoltage commandto display thevoltages of theboards and recordthem

The voltages of the boards shouldbe in the given range.Vol: indicates the current voltage.LowAlmThreshold Major:indicates the minor alarm of lowvoltage. HighAlmThresholdMajor: indicates the minor alarmof high voltage. In normalsituations, Vol should be less thanHighAlmThreshold Major andgreater than LowAlmThresholdMajor.<HUAWEI> display voltageSlotID6 :SlotID: 6

Base-Board, Unit: Volt, Slot6PCB I2C Addr Chl Status Required LowAlmThreshold HighAlmThreshold Vol Ratio Major Fatal Major Fatal-------------------------------------------------------------------------------FADB 1 0 0 NORMAL 1.50 1.20 1.05 1.80 1.95 1.49 1.00FADB 1 0 1 NORMAL 1.80 1.44 1.26 2.16 2.34 1.84 1.00FADB 1 0 2 NORMAL 2.50 2.00 1.75 3.00 3.25 2.79 0.68FADB 1 0 6 NORMAL 5.00 4.05 3.55 6.07 6.57 4.97 0.38



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Maintenanceitem

Maintenanceperiod


Status ofthe fanmodule

Daily Run the displayfan command

l The value of the Presentshould be Yes.

l The value of the Status fieldshould be AUTO.

If the bolded information as shownin the following output isdisplayed, it means that the fan isnormal.<HUAWEI> display fanSlotid : 19Present : YESRegistered: YESStatus : AUTOFanSpeed : [No.]Speed [1]100% [2]100%Slotid : 20Present : YESRegistered: YESStatus : AUTOFanSpeed : [No.]Speed [1]100% [2]100%

Status ofthe powersupplymodule

Daily Run the displaypower command

l The value of the Presentshould be Yes.

l The value of the State fieldshould be Normal.

If the bolded information as shownin the following output isdisplayed, it means that the powersupply module is normal.<HUAWEI> display powerNo Present mode State Num-------------------------------------------------------------------------------17 Yes DC Normal 118 Yes DC Normal 1



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Maintenanceitem

Maintenanceperiod


Systemclock

Monthly

Run the displayclock command

l The system date and time aredisplayed. The time should beidentical with the local time(the deviation is within 5m).

l If the time is not correct,modify the system time or NTPthrough the clock command.

The bolded information as shownin the following output should befocused.<HUAWEI> display clock2010-11-16 17:59:27MondayTime Zone(DefaultZoneName) : UTC

CPUusage

Daily Run the displaycpu-usagecommand

l The CPU usage rate should beless than 80%.

l If the rate is too high for a longperiod of time, check thedevice and locate the cause.

The bolded information as shownin the following output is thecurrent CPU usage, it should beless than 80%.<HUAWEI> display cpu-usageCPU Usage Stat. Cycle: 60 (Second)CPU Usage : 8% Max: 92%CPU Usage Stat. Time : 2009-11-16 18:31:48CPU utilization for five seconds: 8%: one minute: 8%: five minutes: 8%.

TaskName CPU Runtime(CPU Tick High/Tick Low) Task ExplanationBOX 0% 0/ 2ad2ab BOX Output_TIL 0% 0/ 0 Infinite loop event task_EXC 0% 0/ 0 Exception Agent TaskVIDL 92% 0/6d8d704b DOPRA IDLETICK 0% 0/ 8a559c ---- More ----



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Maintenanceitem

Maintenanceperiod


Memoryusage

Daily Run the displaymemory-usagecommand

l The memory usage rate shouldbe less than 80%.

l If the rate is too high for a longperiod of time, examine thedevice and locate the cause.

The bolded information as shownin the following output is thecurrent memory usage, it should beless than 80%.<HUAWEI> display memory-usage Memory utilization statistics at 2010-11-16 18:36:45 150 ms System Total Memory Is: 1073741824 bytes Total Memory Used Is: 506644196 bytes Memory Using Percentage Is: 47%



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Maintenanceitem

Maintenanceperiod


Traffic onaninterface

Monthly

Run the displayinterface briefcommand

l Compare the current trafficwith the interface bandwidth. Ifthe usage rate is more than80%, record and confirm it.

l Check whether incorrectstatistics are collected on theinbound and the outboundinterfaces. Focus on theincorrect statistics.

InUti: indicates the averagebandwidth utilization in thereceiving direction in the last 300seconds, it should be less than80%. OutUti: indicates theaverage bandwidth utilization inthe sending direction in the last 300seconds. it should be less than80%. inErrors: indicates thenumber of error packets receivedby an interface, it should be 0 innormal situations. outErrors:indicates the number of errorpackets sent by an interface, itshould be 0 in normal situations.<HUAWEI> display interface briefPHY: Physical*down: administratively down^down: standby(l): loopback(s): spoofing(b): BFD down(e): EFM down(d): Dampening SuppressedInUti/OutUti: input utility/output utilityInterface PHY Protocol InUti OutUti inErrors outErrorsAux0/0/1 *down down 0% 0% 0 0GigabitEthernet0/0/0 up up 0% 0% 0 0GigabitEthernet2/0/0 up up 0% 0% 0 0GigabitEthernet2/0/0.100 up down 0% 0% 0 0GigabitEthernet2/0/1 down down 0%



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Maintenanceitem

Maintenanceperiod


0% 0 0GigabitEthernet2/0/2 *down down 0% 0% 0 0GigabitEthernet2/0/3 *down down 0% 0% 0 0GigabitEthernet2/0/4 *down down 0% 0% 0 0GigabitEthernet2/0/5 *down down 0% 0% 0 0GigabitEthernet2/0/6 *down down 0% 0% 0 0GigabitEthernet2/0/7 *down down 0% 0% 0 0GigabitEthernet2/0/8 down down 0% 0% 0 0GigabitEthernet2/0/9 *down down 0% 0% 0 0LoopBack0 up up(s) 0% 0% 0 0NULL0 up up(s) 0% 0% 0 0 ---- More ----



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Maintenanceitem

Maintenanceperiod


Runningstatus of aboard

Monthly

Run the displaydevice command

The fields of Online, Register andStatus displayed should bePresent, Registered and Normalrespectively.If the bolded information as shownin the following output isdisplayed, it means that the deviceis normal.<HUAWEI> display device NE40E's Device status:Slot # Type Online Register Status Primary- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1 LPU Present Registered Normal NA2 LPU Present Registered Normal NA3 LPU Present Registered Normal NA6 LPU Present Registered Normal NA9 MPU Present NA Normal Master10 MPU Present Registered Normal Slave11 SFU Present Registered Normal NA12 SFU Present Registered Normal NA13 SFU Present Registered Normal NA14 SFU Present Registered Normal NA15 CLK Present Registered Normal Master16 CLK Present Registered Normal Slave17 PWR Present NA Normal NA18 PWR Present NA Normal NA19 FAN Present Registered Normal NA20 FAN Present Registered Normal NA21 LCD Present Registered Normal NA



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Maintenanceitem

Maintenanceperiod


DeploymentoftheServices

Status ofOSPFneighborrelationship

Monthly

Run the displayospf peercommand

The status of neighbor relationshipshould be 2-Way or Full.The neighbor relationship is stableand not reestablished repeatedly.If the bolded information as shownin the following output isdisplayed, it means that the statusof OSPF neighbor relationship isnormal.<HUAWEI> display ospf peer OSPF Process 1 with Router ID 10.1.1.2 Neighbors Area 0.0.0.0 interface 10.1.1.2(GigabitEthernet1/0/0)'s neighbors Router ID: 10.1.1.1 Address: 10.1.1.1 GR State: Normal State: Full Mode:Nbr is Slave Priority: 1 DR: 10.1.1.1 BDR: None MTU: 0 Dead timer due in 35 sec Retrans timer interval: 5 Neighbor is up for 72:00:05 Authentication Sequence: [ 0 ]



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Maintenanceitem

Maintenanceperiod


Status ofIS-ISneighborrelationship

Monthly

Run the displayisis peercommand

The status of neighbor relationshipshould be Up.If the bolded information as shownin the following output isdisplayed, it means that the statusof IS-IS neighbor relationship isnormal.<HUAWEI> display isis peer Peer information for ISIS(1) ---------------------------- System Id Interface Circuit Id State HoldTime Type PRI0000.0000.0001 GE1/0/0 0000.0000.0001.01 Up 9s L2 1000000.0000.0002 GE1/0/0 0000.0000.0001.01 Up 28s L2 64

Status ofBGP peerrelationship

Monthly

Run the displaybgp peercommand

The status of BGP peerrelationship should be Established.If the bolded information as shownin the following output isdisplayed, it means that the statusof BGP peer relationship isnormal.<HUAWEI> display bgp peer BGP local router ID : 2.2.2.2 Local AS number : 65009 Total number of peers : 3 Peers in established state : 3 Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv 9.1.1.2 4 65009 49 62 0 00:44:58 Established 0 9.1.3.2 4 65009 56 56 0 00:40:54 Established 0 200.1.1.2 4 65008 49 65 0 00:44:03 Established 1



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Maintenanceitem

Maintenanceperiod


Routinginformation

Monthly

Run the displayip routing-tablecommand.Compare theroutinginformationcurrentlydisplayed withthat recorded forthe last time tocheck whetherobvious changesexist betweenthem.Run the ping ortracert commandfor the routingentries sampled

l There should be a default routein the routing table.

l The routing information on adevice has little change. For thedevices running the samerouting protocol in a network,the routing entries on all thedevices should be almost thesame. Because static routing isconfigured differently, therouting entries may differ.

UserandSecurityManagement

Administrative usercontrol

Monthly

Run the displaycurrent-configuration |include superpassword level3command

Use the super passwordcommand to set the superpassword. The super passwordshould be in the encrypted textmode and its length should not beless than six characters.

Telnetlogoncontrol

Monthly

Run the displaycurrent-configuration|include superpassword level 3command

l Telnet password cannot be thesame as the super password.

l It must use the encrypted textmode.

FTPpasswordcontrol

Monthly

Run the displaycurrent-configuration |include includepasswordcommand

l FTP password cannot be thesame as the super password.

l It must use the encrypted textmode.



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Maintenanceitem

Maintenanceperiod


Passwordchange

Monthly

Run the userusernamepassword ciphercommand in thelocal-aaa-serverview.For the local useradoptingpasswordauthentication,run the setauthenticationpasswordcommand.

l The password should be incipher text and its length shouldbe more than six characters.

l The password should bechanged on a quarterly basis.

BackupandRestoration

Monthly

see to2.4 Backupand Restoration

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DustproofMaintenanceoftheDevice

Maintaining the AirFilter,RemovingDust fromFanModules,Boards,OpticalInterfacesandConnectors

Yearly

see to2.3DustproofMaintenance ofthe Device

-

2.3 Dustproof Maintenance of the DeviceHow to remove dusts from the device.



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WARNINGl Use antistatic measures in the whole process. For example, you have to operate at an antistatic

table and wear antistatic clothes and wrist straps.l To ensure heat dissipation and ventilation for the system, and to prevent the dust on the air

filter from accumulating, you need to clean the air filter regularly. It is recommended that anair filter be cleaned once at least every three months. When an air filter is placed in the dustyenvironment such as an equipment room, the air filter should be cleaned more frequently.

NOTE

The NE40E-X1 and NE40E-X2 series do not have any air filter, and therefore air filter cleaning is not required.

2.3.1 Maintaining the Air Filter of the NE40E-X16

ContextTo ensure good heat dissipation and ventilation for the system and to prevent the accumulationof dust on an air filter, you need to clean the air filter regularly. You are recommended to cleanan air filter at least once every three months. If an air filter is placed in a dusty environment, itshould be cleaned more frequently.

Procedure

Step 1 Check the location of the air filter to be replaced.

Before removing the old air filter, check its location, for example, the cabinet and chassis wherethe air filter resides. Then, find the air filter to be replaced in the chassis and attach a label tothe panel to identify the air filter and avoid misoperation.

Step 2 Wear the ESD-preventive wrist strap and connect the grounding terminal to the ESD jack on thechassis. Or wear the ESD-preventive gloves.



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Figure 2-1 Diagram of ESD jack on the chassis

Step 3 Remove the air filter from the air intake frame.1. Both the upper part and the lower part of the device are installed with an air intake frame.

As shown in Figure 2-2, hold the slots in both sides of the air intake frame, press hardinwards, and pull the air intake frame horizontally, and the air intake frame is removed.Then, remove the air filter from the air intake frame.

Figure 2-2 Diagram of removing the air filter from the air intake frame on the NE40E-X16



24

Step 4 Remove the air filter from the SFU area.1. The air filter is located on the left in the middle of the device. When removing the air filter,

hold the upper handle of the air filter with one hand and pull the air filter out horizontally,as shown in Figure 2-3.

Figure 2-3 Diagram of removing the air filter from the SFU area on the NE40E-X16

Step 5 Clean air filters.

1. Dust off air filters.2. Use a cleaner to draw the dust.

Step 6 Install an air filter on the air intake frame.1. Place the clean and dry air filter onto the panel of the air intake frame.Place fingers in the

holes on both sides of the panel to install the panel back to the original place, as shown inFigure 2-4.



25

Figure 2-4 Diagram of installing the air filter on the air intake frame of the NE40E-X16

Step 7 Install an air filter in the SFU area.

1. Support the bottom of the air filter with one hand and hold the handle on the air filter withthe other hand. Then, insert the clean and dry air filter in the chassis horizontally, as shownin Figure 2-5.

Figure 2-5 Diagram of installing the air filter in the SFU area on the NE40E-X16

----End




26

ContextTo ensure good heat dissipation and ventilation for the system and to prevent the accumulationof dust on an air filter, you need to clean the air filter regularly. You are recommended to cleanan air filter at least once every three months. If an air filter is placed in a dusty environment, itshould be cleaned more frequently.

Procedure

Step 1 Check the location of the air filter to be replaced.

Before removing the old air filter, check its location, for example, the cabinet and chassis wherethe air filter resides. Then, find the air filter to be replaced in the chassis and attach a label tothe panel to identify the air filter and avoid misoperation.

Step 2 Wear the ESD-preventive wrist strap and connect the grounding terminal to the ESD jack on thechassis. Or wear the ESD-preventive gloves.

Figure 2-6 Diagram of ESD jack on the chassis

Step 3 Remove the air filter from the air intake frame.1. Place fingers in the holes on both sides of the panel to press hard inwards, pull it out of the

air intake frame horizontally. In this manner, the panel is removed, as shown in Figure 2-7



27

Figure 2-7 Diagram of removing the air filter from the air intake frame on the NE40E-X8


1. Dust off air filters.

2. Use a cleaner to draw the dust.

Step 5 Install an air filter on the air intake frame.

1. Place a clean and dry air filter onto the air intake frame and press the air filter, as shown inFigure 2-8.

Figure 2-8 Diagram of installing the air filter onto the air intake frame of the NE40E-X8

----End


Context

To ensure good heat dissipation and ventilation for the system and to prevent the accumulationof dust on an air filter, you need to clean the air filter regularly. You are recommended to cleanan air filter at least once every three months. If an air filter is placed in a dusty environment, itshould be cleaned more frequently.



28

NOTE

The air filter on the NE40E-X3 is bendable, which is convenient for the maintenance from the rear of chassis.

Procedure

Step 1 Remove an air filter from the air intake frame.

1. The air filter is located at the rear of the device. Loosen the captive screws on the panel, asshown in 1 of Figure 2-9.

2. Hold the panel of the air filter and slowly pull out the air filter until it leaves the chassis,as shown in 2 of Figure 2-9.

Figure 2-9 Schematic diagram of removing an air filter from the air intake frame of theNE40E-X3


1. Dust off air filters.

2. Use a cleaner to draw the dust.

Step 3 Install a cleaned air filter to the air intake frame.

1. Horizontally insert the air filter into the chassis, as shown in 1 of Figure 2-10.

2. Tighten the captive screws on the panel of the air filter, as shown in 2 of Figure 2-10.

Figure 2-10 Installing an air filter to the air intake frame of the NE40E-X3



29

----End

2.3.4 Maintaining the Air Filter of the NE80E

ContextAn air filter filters out the dust in the air drawn into the chassis for heat dissipation. On theNE80E, air filters are installed to the air intake frame and the panel of the power module.


ProcedureStep 1 Remove an air filter from the air intake frame.

1. Pull out the panel of the air intake frame horizontally with fingers in the holes on both sidesof the panel. In this manner, the panel is removed, as shown in 1 of Figure 2-11.

2. Loosen the captive screws on both sides of the panel of the air filter, as shown in 2 ofFigure 2-11.

3. Hold the captive screws and pull out the air filter, as shown in 3 of Figure 2-11.

Figure 2-11 Schematic diagram of removing an air filter from the air intake frame of theNE80E



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Step 2 Remove an air filter from the panel of the power module.1. Pull out the panel of the power module horizontally with fingers in the holes on both sides

of the panel. In this manner, the panel is removed, as shown in 1 of Figure 2-12.2. Remove the air filter from the panel of the power module, as shown in 2 of Figure 2-12.

Figure 2-12 Schematic diagram of removing the panel of the power module of the NE80E


The NE80E adopts sponge air filters, for which dry cleansing is suitable.


Step 4 Install a cleaned air filter to the air intake frame.1. Insert a clean and dry air filter into the chassis, as shown in 1 of Figure 2-13.2. Use a crosshead screwdriver to tighten the captive screws on both sides of the air filter, as

shown in 2 of Figure 2-13.3. Install the panel of the air intake frame to its original position, as shown in 3 of Figure

2-13.



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Figure 2-13 Schematic diagram of installing an air filter to the air intake frame of theNE80E

Step 5 Install a cleaned air filter to the panel of the power module.1. Place the air filter onto the back of the panel of the power module.2. Install the panel of the power module into its original position in the chassis, as shown in

Figure 2-14.

Figure 2-14 Schematic diagram of installing the panel of the power module of the NE80E

----End



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2.3.5 Maintaining the Air Filter of the NE40E-8

ContextAn air filter filters out the dust in the air drawn into the chassis for heat dissipation. On theNE40E-8, air filters are installed to the air intake frame and the panel of the power module.


Procedure

Step 1 Remove an air filter from the air intake frame.1. Pull out the panel of the air intake frame horizontally with fingers in the holes on both sides

of the panel. In this manner, the panel is removed, as shown in 1 of Figure 2-15.2. Remove the air filter from the panel of the air intake frame, as shown in 2 of Figure

2-15.

Figure 2-15 Schematic diagram of removing an air filter from the air intake frame of theNE40E-8

Step 2 Remove an air filter from the panel of the power module.1. Pull out the panel of the power module horizontally with fingers in the holes on both sides

of the panel. In this manner, the panel is removed, as shown in 1 of Figure 2-16.2. Remove the air filter from the panel of the power module, as shown in 2 of Figure 2-16.



33

Figure 2-16 Schematic diagram of removing the panel of the power module of theNE40E-8


The NE40E-8 adopts sponge air filters, for which dry cleansing is suitable.


Step 4 Install a cleaned air filter to the air intake frame.1. Place the clean air filter to the position where the air intake frame is to be installed and

press the air filter, as shown in 1 of Figure 2-17.2. Install the panel of the air intake frame into its original position in the chassis, as shown in

2 of Figure 2-17.

Figure 2-17 Schematic diagram of installing an air filter to the air intake frame of theNE40E-8

Step 5 Install a cleaned air filter to the panel of the power module.1. Place the air filter onto the back of the panel of the power module.2. Install the panel of the power module into its original position in the chassis, as shown in

Figure 2-18.



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Figure 2-18 Schematic diagram of installing the panel of the power module of theNE40E-8

----End

2.3.6 Removing Dust from Fan Modules

ContextThe fan modules are part of a device. The fan modules help in heat dissipation and ventilationof the entire system.

During the running of a device, the fans and the Fan Control Board (FCB) of the fan modulesabsorb dust. When a lot of dust is accumulated, the stable running of the fan modules is affectedand the dust becomes the pollution source of the chassis, which poses a latent hazard to stablesystem running.

To ensure the long-term stability of a device, it is recommended to remove dust from each fanmodule once a year as follows:

Procedure

Step 1 Remove dust from a spare fan module.

Remove dust from the fans and the FCB of a spare fan module with the clean gauze, antistaticsoft brush, or the vacuum cleaner.

Step 2 Replace the fan module to be cleaned with the spare one.

For detailed operations, refer to the"HUAWEI NetEngine80E/40E Router Parts Replacement".

CAUTIONMaintainers must spend no more than five minutes to replace a fan frame. Otherwise, the securityand stability of the device is severely affected.

Step 3 Remove dust from the replaced fan module.



35

Remove dust from the fans and the FCB of the replaced fan module with the clean gauze,antistatic soft brush, or the vacuum cleaner. The fan module cleaned is used as a spare one.

----End

2.3.7 Removing Dust from Boards

Context

DANGERl Use antistatic measures in the whole process. For example, you have to operate at an antistatic

table and wear antistatic clothes and wrist straps.l Choose the qualified detergent; otherwise, the board will be damaged.

CAUTIONRemoving boards may significantly affect the running of services. Therefore, you should removedust from boards during a period when the service traffic is light, for example, between 2:00and 4:00 a.m.

During the running of a device, dust accumulates on the boards due to cross ventilation in theprocess of heat dissipation. The lower the air cleanliness and relative humidity are, the higherthe accumulation of dust is. The worse the air cleanness is and the lower the relative humidityis, the more dust is absorbed. When a certain amount of dust is accumulated, it affects the heatdissipation and the electric insulation of boards. It thus threatens the stable running of the device.

You are recommended to clean dust for all boards once in every two years.

The steps are described as follows.

ProcedureStep 1 Prepare spare boards.

To clean dust for all boards, you need to prepare a spare board for each board.

Step 2 Replace boards.

Replace a board with the spare board first. You cannot remove dust from the board until thespare one is in position and runs normally.

Step 3 Remove dust.

You can carry out dust cleaning in many ways. Two ways for dust cleaning are as follows.

l With vacuum cleanerBrush dust from board surface with a clean and dry antistatic soft brush and align the dustintake of a vacuum cleaner with the brush. In this case, dust is absorbed immediately whenit is brushed off.



36

This method features simple operation and low cost. It is hard to remove the dust that isabsorbed on board surface such as harmful gas.

l With detergentUse dedicated anhydrous, erosion-free, non-conductive and highly volatile detergent suchas Isopropyl Alcohol (IPA) to remove dust from boards.This method helps to remove dust completely, even those harmful gases that are adsorbedon board surface. It, however, features complicated operation and high cost.

Step 4 Reuse boards.

Due to the amount limit of spare boards, it is not possible to replace all the boards with spareboards simultaneously.

You can repeatedly use the cleaned board to replace other boards the types of which are the samefor secure maintenance.

----End

2.3.8 Removing Dust from Optical Interfaces and Connectors

Context

After a device has run for a period of time, you need to remove dust from optical interfaces onboards and connectors of fibers.

CAUTIONMake sure that services are not interrupted when removing an LPU for dust removal.

Protection Against Laser

DANGERThe optical interface emits laser, which may cause injuries to eyes.

WARNINGDo not use unqualified cleaning tools or materials. This may damage the optical connectors andinterfaces.

When performing an operation on optical connectors, wearing infrared filter glasses isrecommended so that your eyes can be protected from being hurt. If you do not wear such glasses,do not look directly into the optical connector of an optical interface.



37

Capping Optical Interfaces and ConnectorsCover the unused optical interfaces on boards and connectors of fibers with dust caps. After youremove the fiber from an optical interface, cover dust caps on the interface and the connector ofthe fiber.

This helps to:

l Protect eyes from being hurt by laser.l Prevent dust from being accumulated on optical interfaces and connectors.

Do as follows to clean optical interfaces and connectors:

Procedure

Step 1 Pull out an LPU.

Before pulling out an LPU, remove fibers from optical interfaces.

Performing this step under the guidance of Huawei engineers is recommended so that damagesto the LPU can be avoided.

Step 2 Clean the optical interfaces and connectors with dedicated tools and materials.

The tools and materials can be purchased from fiber suppliers.

For large-power optical interfaces and connectors, you must use special tools and materials toclean them.

For small-power optical interfaces and connectors, you can use clean, dry antistatic brushes, ifdedicated tools and materials are unavailable.

----End

Loopback Test on Optical InterfacesAdd an optical attenuator when conducting a loopback test on an optical interface. In this manner,the optical module can be protected from being overloaded and damaged due to high opticalpower that is received.

2.4 Backup and RestorationHow to back up and restore data.

For the router, backup and restoration involves:

2.4.1 Backing Up the Configuration File

ContextA configuration file can be backed up in the following manners:

Procedurel Directly Copying the File



38

Run the display current-configuration command on the command line interface and copyall command outputs into a .txt file. In this manner, the configuration file is backed up intothe hard disk of the maintenance terminal.

l Directly copy the configuration file to the CFcard.

You can take the step to copy the current configuration file immediately to the CFcard ofthe router. Run the following commands to copy the configuration file to the CFcard of therouter before starting the router:

<HUAWEI> copy vrpcfg.zip cfcard:/backup.zipCopy cfcard:/vrpcfg.zip to cfcard:/backup.zip?[Y/N]:y100% completeInfo:Copied file cfcard:/vrpcfg.zip to cfcard:/backup.zip...Done

l Backing Up the File Through TFTP1. Assign an IP address to the router.

The router functions as a TFTP client.

Connect the router and maintenance terminal to set up a Telnet environment. Assignan IP address to the interface on the router. Ensure that this IP address and the IPaddress of the TFTP server are in the same network segment.

2. Run the TFTP server application program.

Run the TFTP server application program on the PC. Configure the path where thedownloaded file is to be saved, IP address of the TFTP server, and interface number.

3. Transfer the configuration file.

Run the tftp command with parameters specifying the IP address (10.110.24.209 inthis example) of the TFTP server, operation, and name of the configuration file on thecommand line interface.

<HUAWEI> tftp 10.110.24.209 put vrpcfg.zip Transfer file in binary mode. Now begin to copy file to remote tftp server, please wait for a while... \ TFTP: 1503 bytes sent in 1 seconds. File uploaded successfully.

l Backing Up the File Through FTP1. Connect the router and maintenance terminal to set up a Telnet environment. Assign

an IP address to the interface on the router.2. Enable the FTP service.

The router functions as an FTP server.

Enable the functions of the FTP server. Create an FTP user with the username ashuawei and password as 123. The user is authorized to access "cfcard:/".

<HUAWEI> system-view[HUAWEI] ftp server enable[HUAWEI] aaa[HUAWEI-aaa] local-user huawei password simple 123[HUAWEI-aaa] local-user huawei service-type ftp [HUAWEI-aaa] local-user huawei ftp-directory cfcard:/

3. On the maintenance terminal, initiate an FTP connection to the router.

On the PC, set up an FTP connection with the router through the FTP client. Assumethat the IP address of the router is 10.110.24.254.

C:\Documents and Setting\Administrator> ftp 10.110.24.254



39

Connected to 10.110.24.254.220 FTP service ready.User (10.110.24.254:(none)): huawei331 Password required for huawei.Password:230 User logged in.

4. Configure transfer parameters.

If the FTP user passes the authentication, the FTP client displays the prompt characterof "ftp>". Enter binary following the prompt character. Then, specify the path wherethe uploaded file is to be saved on the FTP client.

ftp> binary200 Type set to I.ftp> lcd c:\tempLocal directory now C:\temp.

5. Transfer the configuration file.

On the PC, run the get command to download the configuration file to the specifiedpath and save the file as backup.zip.

ftp> get vrpcfg.zip backup.zip200 Port command okay.150 Opening ASCII mode data connection for vrpcfg.zip.226 Transfer complete.ftp: 1021 bytes received in 0.06Seconds 60.02Kbytes/sec.ftp>

----End

2.4.2 Restoring the Configuration Files

You can restore the configuration files through the following ways.

NOTE

After restoring the configuration files, reset the router to make the configuration files take effect.

Recovering the Configuration Files Saved in the CF Card Memory

This action is to restore the configuration files saved in the CF card memory of the router as theconfiguration files of the current system.

Run the following commands when the router works normally.

<HUAWEI> copy backup.zip CFcard:/vrpcfg.zipCopy CFcard:/backup.zip to CFcard:/vrpcfg.zip?[Y/N]:y100% completeInfo: Copied file CFcard:/backup.zip to CFcard:/vrpcfg.zip...Done

Recovering the Configuration Files Saved in the PC Through TFTP

This action is to restore the configuration files saved in the PC as the configuration files of thecurrent system.

The router works as the TFFP client. The restoration procedure is similar to that for backing upthe configuration files through TFTP. Run the tftp get command to download the configurationfiles saved in the PC to the CF card memory of the router.



40

Recovering the Configuration Files Saved in the PC Through FTPThis action is to restore the configuration files saved in the PC as the configuration files of thecurrent system.

The router acts as the FTP server. The restoration procedure is similar to that for backing up theconfiguration files through FTP. Run the ftp put command to upload the configuration filessaved in the PC to the CF card memory of the router.

2.5 Grounding System MaintenanceHow to maintain the grounding system.

2.5.1 Checking the Grounding System

To maintain the grounding system, check the following:

l The electrical contact between the metallic parts and the cabinet body. The metallic partsand the cabinet body must be well contacted. The contact points such as screw holes, guidelanes, and lifting ears must not be painted. Otherwise, bad electrical contact may occur.

l The grounding terminals at the front and back doors and the side doors. These terminalsmust be well connected with the grounding wires.

l The grounding buses of combined neighboring cabinets. If cabinets are combined, theneighboring cabinets must be connected by a grounding bus.

l The yellow and green protecting grounding cables. One end of a grounding cable shouldconnect the PGND grounding bus of the power distribution cabinet in the equipment room,and the other end connects the grounding terminal of the cabinet. The screws that fix thegrounding cable should not be loose.

2.5.2 Measuring the Grounding ResistanceNOTE

The grounding resistance of a comprehensive communication building should be no more than 1 Ω; thatof a common communication station, no more than 5 Ω; that of the place with high earth resistibility, nomore than 10 Ω.To measure the grounding resistance, use an earth resistance tester. Figure 2-19 shows the arrangementof the probes of an earth resistance tester.

Figure 2-19 Arrangement of probes of an earth resistance tester



41

NOTE

l Position the current probe and the voltage probe in a manner that is perpendicular to the wires of agrounding net or underground metallic pipes.

l Do not measure the grounding resistance right after a rain.

l If the distance between the current probe and the rim of a grounding net is d1 and the lengthof the maximum diagonal line of a grounding net is D: d1 is normally four to five times asmuch as D.

l If the distance between the probe and the side of a grounding net is d2, then d2 is 50% to60% of d1.

l In measurement, move the voltage probe along the line connecting the grounding net andthe current probe for three times; each movement is about 5% of d1. If the three resistancevalues are similar, it means that the grounding resistance is normal.

NOTE

If you feel difficult to measure d1, you can take 2D instead of d1, D instead of d2, in a place where theearth resistibility is uniform. In a place where the resistibility is not uniform, you can take 3D instead ofd1, 1.7D instead of d2 as the data.



42

3 Operations Involving Risks

About This Chapter

This chapter describes the operations that may cause bodily injury or device faults duringmaintenance.

3.1 Hardware Operations Involving Risks

3.2 Command Executions Involving Risks

HUAWEI NetEngine80E/40E RouterRoutine Maintenance 3 Operations Involving Risks


43

3.1 Hardware Operations Involving Risks

CAUTIONThe operations listed below have to be performed with caution.

The operations listed below have to be performed with caution.

Table 3-1 Hardware operations involving risks

Item Sub-item Aftereffects that may becaused by maloperation

Operations onboards

Hot swapping the master maincontrol board is prohibited

l When the standby main controlboard runs normally, databackup from the master boardto the standby one requires acertain period. In this case, thelatest data on the main controlboard cannot be backed upentirely to the standby board.Therefore, removing the in-service master control boardmay result in incorrect statisticsand data loss.

l When the standby main controlboard fails to run, removing thein-service master board mayresult in interrupt of partial oreven global services.

Operations onboards

Pressing the Reset button on themain control board is not allowed,unless otherwise required.

l If you press the Reset button onthe panel, the board is forced toreset the hardware. Thisoperation can be carried outonly by the qualified personnelin case that fatal faults occur inthe system.

l If the Reset button on the panelis pressed by mistake, the maincontrol board will be reset. Itsresults are the same as those ofremoving the in-service mastercontrol board.

Operations onboards

Pressing the OFL button is notallowed, unless otherwiserequired..

If you press the OFL button, theboard is powered off and theservice is interrupted.



44

Item Sub-item Aftereffects that may becaused by maloperation

Operations onboards

Inserting and removing boardswithout wearing antistatic wriststrap are prohibited

l Electrostatic on human bodydoes great harm to electricalparts on the board.

l If the maintenance personnelinsert and remove boardswithout wearing antistatic wriststrap, the board may bedamaged or not run stably.

Operations onboards

Debugging the Console with theConsole cable is prohibited

Only Huawei professionalengineers can use the debuggingConsole; otherwise, abnormality ofboard running or board resettingmay be caused.

Operations on theCF card

Hot swapping the CF card isprohibited

When the CF card is reading orwriting data, hot swapping the CFcard may cause abnormity of theoperation system. That is resettingcaused by infinite loop or loss ofheartbreak of the main controlboard on which the CF card is on.

Operations forcable

Plugging in and plugging out thenetwork cables inside the cabinetare not allowed, unless otherwiserequired.

l The network cables inside thecabinet are used forcommunication between thehost and the terminal.

l Plug-in and plug-out of thecables inside the cabinet maymake the terminal fail to log onto the router.

Operations forpower supply

Operating the power supply in thepower distribution frame of thecabinet is prohibited

l The maintenance personnel canoperate the power supply basedon the guide only in the case ofupgrading, expansion, partsreplacement or fatal faults.

l Operations may cause fatalfaults such as shut-down of thedevice and interruption of theservices.

3.2 Command Executions Involving Risks



45

CAUTIONThe commands given below can be used only by the qualified and trained personnel.

Table 3-2 Command executions involving risks

Classification Command Function Aftereffect that may be causedby maloperation

Reboot reboot Rebooting thesystem

This command can be used only inthe case of office deployment orupgrading; otherwise, the servicescarried over the device will beinterrupted.

Format formatdevice-name

Formatting thestorage device

Using this command may causeloss of all the files on the specifiedstorage device and the files cannotbe restored.

Delete delete [ /unreserved ]{ filename |cfcard: }

Deleting thespecified files inthe storagedevice

This command is used to delete thespecified files in the storage deviceof the router. If you useunreserved when deleting files,the files cannot be restored.

User interface authentication-mode

Authenticatingthe logon users

When setting user authenticationon the Console and VTY userinterface, if the mode is passwordor AAA, you have to set thepassword or the user name to log onto the router.

Systemmaintenance

startupsystem-software

Setting the largefile for nextstartup

In the active/standby mode, set thelarge files for next startup at thesame time on the active andstandby main control board.Otherwise, the router will restartcontinuously.

Systemmaintenance

upgrade Upgrading aboard

Using this command to upgrade thesoftware or the logical file of aboard will interrupt the services.

Systemmaintenance

power off slot Powering off aboard

Using this command will power offa board and interrupt the services.

Systemmaintenance

reset slot Restarting aboard

Using this command will restart thespecified board.



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4 Commonly Used Commands forMaintenance

This chapter describes the commonly used commands during maintenance.

Table 4-1 shows the commonly used commands for maintenance.

Table 4-1 Commonly used commands for maintenance

Command Function

dir [/all ] [ filename ] Displays the information on the specifiedfile or directory in the storage device of therouter.

display alarm { slot-id | all | active |history |information name alarm-name }

Displays alarms.

display bgp [ vpnv4 vpn-instance vpn-instance-name ] peer [ { group-name | ipv4-address } log-info | [ ipv4-address ] verbose ]display bgp vpnv4 all peer [ [ ipv4-address ]verbose ]

Displays BGP peer.

display clock [ utc ] Displays the information on the output portof the LPU reference source and theattributes of the clock reference source.

display cpu-usage [ configuration ] [ slave |slot slot-id [ vcpu vcpu-number ]]display cpu-usage [ task-name ] [ slave | slotslot-id ]

Displays the statistics and configurations ofCPU usage.

display current-configuration[ configuration [ configuration-type[ configuration-instance ] ] | controller |interface interface-type [ interface-number ] ]

Displays the valid parameters of therouter.

display fan Displays the status of the fan.

HUAWEI NetEngine80E/40E RouterRoutine Maintenance 4 Commonly Used Commands for Maintenance


47

Command Function

display fib [ slot-id ] statistics Displays the total number of the FIB entries.

display device [ pic-status | slot-id ] Displays the basic information about therouter.

display [ ipv6 ] ftp-server Displays the parameters of the FTP serverin use.

display interface [ interface-type [ interface-number ] ]

Displays the running status and statistics ofan interface.

display ip interface [ interface-type interface-number ]

Displays IP-related configurations andstatistics of an interface such as the packetstransceived, bytes, multicast packets, andbroadcast packets received, sent anddiscarded.

display ip interface brief [ slot slot-number[ card card-number ] | [ interface-type[ interface-number ] ]

Displays IP-related brief information of aninterface such as the IP address, status of thephysical link and protocol, and thedescription of the interface.

display ip routing-table Displays the brief information of IPv4routing table.

display isis peer [ verbose ] [ process-id | vpn-instance vpn-instanc-name ]

Displays the IS-IS peer relationship.

display local-user Displays the attributes of local users.

display logbuffer [ size value | slot slot-id |module module-name |level { severity |emergencies | alerts | critical | errors |warnings | notifications | informational |debugging } ]*

display logbuffer summary [ level severity |slot slot-id ]*

Displays the record in the log buffer.

display memory-usage [ slave | slot slot-id |threshold [ slot slot-id ] ]

Displays the CPU usage of the router.

display ospf [ process-id ] brief Displays the brief information of OSPF.

display ospf [ process-id ] peer [ [ interface-type interface-number ] neighbor-id | brief |last-nbr-down ]

Displays OSPF neighbors.

display patch-information Displays the status of the patch.

display power Displays the status of power supply.

display saved-configuration [ last | time |configuration ]

Displays the configuration files for nextstartup of the router.



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Command Function

display startup Displays the system software and theconfiguration files related to the current andnext startup.

display switchover state Displays the backup status of the active/standby board.

display temperature slot slot-id Displays the status of the slot temperaturetransducer.

display trapbuffer [ size value ] Displays the record in the alarm buffer.

display voltage slot slot-id Displays the status of the voltage transducerin the specified slot.

display version Displays the version of system software.

ping [ ip ] [ -a source-ip-address | -c count | -d | -f | -h ttl-value | -i interface-type interface-number } | -m time | -n | -p pattern | -q | -r | -spacketsize | -t timeout | -tos tos-value | -v | -vpn-instance vpn-instance-name ] * host

Displays IP network connection andwhether the host is reachable.

tracert [ -a source-ip-address | -f first-TTL | -m max-TTL | -p port | -q nqueries | -vpn-instance vpn-instance-name | -w timeout ] *host

Tests the gateways through which thepackets pass from the host to the destinationand checks the network connection to locatethe faults.



49

5 Reference Maintenance Items andOperations

This section describes some uncommon maintenance items and related operations for ease ofreference.

HUAWEI NetEngine80E/40E RouterRoutine Maintenance 5 Reference Maintenance Items and Operations


50

Maintenance Item Guidance

Specification Checkresults

Configurationfiles of theactive andstandbyboards

Run the dir anddisplay startupcommands.

The filenames, size, time for the creation ofthe configuration files of the active andstandby boards should be identical.As shown in the bolded information, theconfiguration files should be identical.MainBoard: Configured startup system software: cfcard:/V600R002C02.cc Startup system software: cfcard:/V600R002C02.cc Next startup system software: cfcard:/V600R003C00.cc Startup saved-configuration file: cfcard:/vrpcfg.cfg Next startup saved-configuration file: cfcard:/vrpcfg.cfg Startup paf file: cfcard:/paf-V600R002C02.txt Next startup paf file: cfcard:/paf-V600R003C00.txt Startup license file: cfcard:/license-V600R002C02.txt Next startup license file: cfcard:/license-V600R003C00.txt Startup patch package: cfcard:/patch.bat Next startup patch package: cfcard:/patch.batSlaveBoard: Configured startup system software: cfcard:/V600R002C02.cc Startup system software: cfcard:/V600R002C02.cc Next startup system software: cfcard:/V600R003C00.cc Startup saved-configuration file: cfcard:/vrpcfg.cfg Next startup saved-configuration file: cfcard:/vrpcfg.cfg Startup paf file: cfcard:/paf-V600R002C02.txt Next startup paf file: cfcard:/paf-V600R003C00.txt Startup license file: cfcard:/license-V600R002C02.txt Next startup license file: cfcard:/license-V600R003C00.txt Startup patch



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package: cfcard:/patch.bat Next startup patch package: cfcard:/patch.bat

Backup of logfiles

Download the logfiles in the CF cardto the local device asa backup throughFTP or TFTP.

The CF card must stores the log files in acertain period.



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PAF andlicense files

Run the dir anddisplay startupcommands.

The filenames, size, creation time, contentsof the PAF and license files should meet therequirements.As shown in the bolded information, thePAF and License should be identical.MainBoard: Configured startup system software: cfcard:/V600R002C02.cc Startup system software: cfcard:/V600R002C02.cc Next startup system software: cfcard:/V600R003C00.cc Startup saved-configuration file: cfcard:/vrpcfg.cfg Next startup saved-configuration file: cfcard:/vrpcfg.cfg Startup paf file: cfcard:/paf-V600R002C02.txt Next startup paf file: cfcard:/paf-V600R003C00.txt Startup license file: cfcard:/license-V600R002C02.txt Next startup license file: cfcard:/license-V600R003C00.txt Startup patch package: cfcard:/patch.bat Next startup patch package: cfcard:/patch.batSlaveBoard: Configured startup system software: cfcard:/V600R002C02.cc Startup system software: cfcard:/V600R002C02.cc Next startup system software: cfcard:/V600R003C00.cc Startup saved-configuration file: cfcard:/vrpcfg.cfg Next startup saved-configuration file: cfcard:/vrpcfg.cfg Startup paf file: cfcard:/paf-V600R002C02.txt Next startup paf file: cfcard:/paf-V600R003C00.txt Startup license file: cfcard:/license-V600R002C02.txt Next startup license file: cfcard:/license-V600R003C00.txt



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Startup patch package: cfcard:/patch.bat Next startup patch package: cfcard:/patch.bat

Patch Run the dir anddisplay patch-informationcommands.

The patch files in the CF card should meetthe requirements and in running state.

Interfaceconfiguration

Run the displayinterface or displaycurrent-configurationcommand.

l The interface that is in the Down statecannot have configuration but theshutdown command.

l The interfaces that are in the Up statemust have configurations.

l If the interface is not in service, use theshutdown command to set it in theadministratively Down state.

Interfacedescription

Run the displayinterfacecommand.

All the activated interfaces should bedescribed in accordance to a certain rule.If there is no relevant rule, abide by thefollowing rule: local device name/local portnumber/remote device name/remote portnumber/remote port rate.

IP interfaceinformation

Run the display ipinterface briefcommand.

The output includes the IP address, thephysical status of the interface, the status ofthe protocol, and the interface description.



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TrafficStatistics onan Interface

Run the display ipinterface briefcommand.Collect data for thefist time; 5 minuteslater, collect data forthe second time.Then, compare thecollected data

In normal situations, if the ping or tracertcommand is not run on the device, thefollowing statistics should not increase, andthe number of each type of packets shouldnot exceed 500.<HUAWEI> display ip interfaceGigabitEthernet0/0/0 current state : UPLine protocol current state : UPThe Maximum Transmit Unit : 1500 bytesinput packets : 24118, bytes : 1069731, multicasts : 0output packets : 25965, bytes : 1263373, multicasts : 0Directed-broadcast packets: received packets: 0, sent packets: 0 forwarded packets: 0, dropped packets: 0ARP packet input number: 1217 Request packet: 1121 Reply packet: 96 Unknown packet: 0Internet Address is 100.1.1.200/24Broadcast address : 100.1.1.255TTL being 1 packet number: 0TTL invalid packet number: 0ICMP packet input number: 0 Echo reply: 0 Unreachable: 0 Source quench: 0 Routing redirect: 0 Echo request: 0 Router advert: 0 Router solicit: 0 Time exceed: 0 IP header bad: 0 Timestamp request: 0 Timestamp reply: 0 Information request: 0 Information reply: 0 Netmask request: 0 Netmask reply: 0 Unknown type: 0DHCP packet deal mode: global

Active/standbyswitchoverstatus

Run the displayswitchover statecommand.

When the software and hardware of thedevice run normally and the versions areidentical, "Slot 18 HA FSM State(master):realtime or routine backup. Slot 17 HA FSMState(slave): receiving realtime or routinedata." should be displayed.If no standby board is configured, "Slot 8HA FSM State(master): waiting for theslave to be inserted." is displayed.



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Configurationfiles of theactive andstandbyboards

Run the dircommand.

The configuration files of the active and thestandby boards should be identical.

FTP serviceport

Run the display ftp-server command.

The FTP service ports that are not in serviceshould be disabled.

Cleanness andtidiness

Examine the devicesurface, thecomponents insidethe device, the airfilters, floors, andthe tabletop.

l They should be clean and tidy.l Clean and replace the air filter in time to

ensure ventilation and heat dissipationof the cabinet and the fan frames.

Heatdissipation

Examine the heatdissipation of thedevice.

l The fans must be kept running when thedevice is working. Do not switch off thefans at random unless you clean thedevice.

l Keep the vent of the device uncovered.l Clean the air filters periodically.

Power supplybackup

Check whether thereis a redundant powermodule for backup.

l It is recommended to install a backuppower supply module. Both the twopower supply modules should be on.

l If there is no backup, record this issue.



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Softwareversions ofthe systemand boards

Run the displayversion command.

The software versions of the system andboards must meet the requirements.The versions of the active and standbyboards must be identical.As shown in the bolded information, thesoftware version should be identical.Huawei Versatile Routing Platform SoftwareVRP (R) software, Version VRP5.90 (NE40E&80E V600R003C00)Copyright (C) 2000-2011 HUAWEI TECH CO., LTD.HUAWEI NetEngine 40E uptime is 0 week, 0 day, 1 hour, 53 minutes

BKP 0 version information: 1. PCB Version : CR52BKPB REV A 2. MPU Slot Quantity: 0 3. SRU Slot Quantity: 2 4. SFU Slot Quantity: 2 5. LPU Slot Quantity: 8

MPU 9(Master) : uptime is 0 week, 0 day, 2 hours, 6 minutes StartupTime 2006/10/27 12:31:24 SDRAM Memory Size : 1024M bytes NVRAM Memory Size : 512K bytes CF Card1 Memory Size: 497M bytes CF Card2 Memory Size: 497M bytes MPU version information: 1. PCB Version : CR52SRUA REV A 2. EPLD1 Version : 104 3. EPLD2 Version : 102 4. FPGA Version : 006 5. BootROM Version : 43.0 6. BootLoad Version : 46.0 7. Software Version : Version 5.90 RELEASE 0029 MIF version information: ---- More ----

Cable layout Examine the cablelayout.

Power cables and service cables must belaid out separately.The cables must be laid out in order.

Cable labels Examine the cablelabels.

The cable labels must be clear, accurate, andin compliance with the related standard.For details, refer to the appendix in theInstallation Guide.



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Surface of theframe

Examine the surfaceof the frame.

The surface must be in good condition.Idle slots must be installed with a blankfiller panel.

Heatdissipation ofthe frame

Examine heatdissipation of theframe.

The frame vent should be clean, and heatdissipation of the device should be normal.If there is dust on the air filter, clean it ontime.

Redundancyconfiguration

Run the displaycurrent-configurationcommand.

All the configurations must be useful.Cancel the unnecessary configurations.



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Interfaceclock

Run the displayinterfacecommand.The POS, ATM, E1,T1, E3, and T3interfaces canconfigure clockmode.NOTE

POS, ATM, E1 andT1 interfaces cannotbe configured on theX1 and X2 models ofthe NE80E/40E.

l When two routers are connected back-to-back, the master clock mode shouldbe set for both of them or one should beset as the master clock and the othershould be set as the slave clock.

l If the WDM system is used between therouters, the routers should be set in themaster clock mode.

l If the active SDH or SONET system isused between the routers, the routersshould be set in the slave clock mode.

l Set the clock mode only on the PPPenabled interfaces.

The bolded information is clock mode.master: indicates the master clock, slave:indicates the slave clock.<HUAWEI> display interfacePos6/0/0 current state : DOWNLine protocol current state : DOWNDescription:HUAWEI, Pos6/0/0 InterfaceRoute Port,The Maximum Transmit Unit is 4470, Hold timer is 10(sec)Internet Address is 8.1.1.1/24Link layer protocol is PPPLCP initialThe Vendor PN is FTRJ1321P1BTLThe Vendor Name is FINISAR CORP.Port BW: 2.5G, Transceiver max BW: 2.5G, Transceiver Mode: SingleModeWaveLength: 1310nm, Transmission Distance: 5kmRx Power: -2.74dBm,normal range:[-20.004,-1.000] dBmTx Power: -40.00dBm,normal range:[ -11.502, -1.004] dBmPhysical layer is Packet Over SDHScramble enabled, clock master, CRC-32, loopback: noneFlag J0 "NetEngine "Flag J1 "NetEngine "Flag C2 22(0x16) SDH alarm: section layer: LOS line layer: SF path layer: PPLM SDH error: section layer: B1 0 line layer: B2 0 REI 0 path layer: B3 0 REI 0Statistics last cleared:never Last 300 seconds input rate 0 bits/sec, 0 packets/sec Last 300 seconds output rate 0 bits/sec, 0 packets/sec Input: 0 packets, 12565 bytes



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Input error: 2 shortpacket, 0 longpacket, 29 CRC, 0 lostpacket Output: 0 packets, 0 bytes Output error: 0 lostpackets Output error: 0 overrunpackets, 0 underrunpackets

Ethernetinterfaceconfiguration

Run the displayinterface ethernetand displayinterfacegigabitethernetcommands.

The speed and duplex mode must beconsistent at the two ends.As shown in the bolded information.<HUAWEI> display interface Ethernet briefPHY: Physical*down: administratively down^down: standby(l): loopback(b): BFD downInUti/OutUti: input utility/output utilityInterface PHY Auto-Neg Duplex Bandwidth InUti OutUti TrunkGigabitEthernet0/0/0 up enable half 100M 0% 0% --GigabitEthernet2/0/0 up disable full 1000M 0% 0% --GigabitEthernet2/0/0.100 up disable full 1000M 0% 0% --GigabitEthernet2/0/1 down disable full 1000M 0% 0% --GigabitEthernet2/0/2 *down disable full 1000M 0% 0% --GigabitEthernet2/0/3 *down disable full 1000M 0% 0% --GigabitEthernet2/0/4 *down disable full 1000M 0% 0% --GigabitEthernet2/0/5 *down disable full 1000M 0% 0% --GigabitEthernet2/0/6 *down disable full 1000M 0% 0% --GigabitEthernet2/0/7 *down disable full 1000M 0% 0% --GigabitEthernet2/0/8 down disable full 1000M 0% 0% --GigabitEthernet2/0/9 *down disable full 1000M 0% 0% --



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POS interfaceconfigurationNOTE

POSinterfacescannot beconfigured onthe X1 and X2models of theNE80E/40E.

Run the displayinterface poscommand.

l Link protocoll Clock model MTUAs shown in the bolded information.<HUAWEI> display interface Pos6/0/0Pos6/0/0 current state : UPLine protocol current state : UPDescription:HUAWEI, Pos6/0/0 InterfaceRoute Port,The Maximum Transmit Unit is 4470, Hold timer is 10(sec)Internet Address is 8.1.1.1/24Link layer protocol is PPPLCP initialThe Vendor PN is FTRJ8519P1BNL-HWThe Vendor Name is FINISAR CORP.Port BW: 2.5G, Transceiver max BW: 1G, Transceiver Mode: MultiModeWaveLength: 850nm, Transmission Distance: 550mRx Power: -20.01dBm, Tx Power: -5.94dBmPhysical layer is Packet Over SDHScramble enabled, clock master, CRC-32, loopback: noneFlag J0 "NetEngine "Flag J1 "NetEngine "Flag C2 22(0x16) ---- More ----

ATMinterfaceconfigurationNOTE

ATMinterfacescannot beconfigured onthe X1 and X2models of theNE80E/40E.

Run the followingcommands:l display

interface atml display atm

interfacel display atm

servicel display atm

pvc-infol display atm

pvp-infol display atm llid

l Encapsulation model PVC informationl LLID



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IP address Run the displayinterfacecommand.

For the IP addresses of the point-to-pointinterfaces, the subnet mask is set to 30 bits.As shown in the bolded information.display ip interface brief*down: administratively down!down: FIB overload down(l): loopback(s): spoofingThe number of interface that is UP in Physical is 4The number of interface that is DOWN in Physical is 3The number of interface that is UP in Protocol is 4The number of interface that is DOWN in Protocol is 3

Interface IP Address/Mask Physical ProtocolAux0/0/1 unassigned *down downGigabitEthernet0/0/0 100.1.1.200/24 up up

LoopBack0 1.1.1.1/32 up up(s)NULL0 unassigned up up(s)Pos6/0/0 8.1.1.1/30 up upPos6/0/1 unassigned down downPos6/0/2 unassigned down downPos6/0/3 unassigned down down ---- More --



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MTU Run the displayinterfacecommand.

The MTU value of the local interface mustbe the same as that of the peer interface.As shown in the bolded information.<HUAWEI> display interface PosPos6/0/0 current state : DOWNLine protocol current state : DOWNDescription:HUAWEI, Pos6/0/0 InterfaceRoute Port,The Maximum Transmit Unit is 4470, Hold timer is 10(sec)Internet Address is 8.1.1.1/30Link layer protocol is PPPLCP initialThe Vendor PN is FTRJ8519P1BNL-HWThe Vendor Name is FINISAR CORP.Port BW: 2.5G, Transceiver max BW: 1G, Transceiver Mode: MultiModeWaveLength: 850nm, Transmission Distance: 550mRx Power: -20.01dBm, Tx Power: -5.95dBmPhysical layer is Packet Over SDHScramble enabled, clock master, CRC-32, loopback: noneFlag J0 "NetEngine "Flag J1 "NetEngine "Flag C2 22(0x16) ---- More ----

CIDR Run the display iprouting-tableprotocol staticcommand.

l The routing entries should besummarized through CIDR.

l Do not create unnecessary routes andredundant routes.

BGP route Run the display bgprouting-tablecommand.

Use network+black hole route to manuallyperform route aggregation, and thenadvertise the aggregated route statistically.It is recommended that you configure therouter to advertise routes by usingnetwork.You can also configure the router to importroutes by using the import command.

OSPF routerID

Run the displayrouter id or thedisplay ospf briefcommand.

l The router ID should use the address ofthe loopback interface.

l If the loopback interface is not assignedan IP address, use the IP address of theincoming interface or the IP address ofan interface least to be down.



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OSPF route Run the displayospf routingcommand.

It is recommended that you configure therouter to advertise routes by usingnetwork.You can also configure the router to importroutes by using the import command.

Virtual OSPFlink

Run the displayospfvlinkcommand.

The virtual link should not be used.

OSPF STUBarea

Run the displaycurrent-configurationconfiguration ospfcommand.

Stub area is not allowed to import externalroutes

OSPF errorpackets

Run the displayospf errorcommand and afterfive minutes, runthis commandagain. Collect thenumber of errorpackets forcomparison.

The number of error packets should notincrease.

Consistencyof OSPFrouter ID

Run the displayrouter id or displayospf briefcommand.

The router ID should be identical with theOSPF process ID.

IS-IS systemID

Run the displayrouter id or displayisis brief command.

l The system ID is an extension of theloopback interface address.

l If no loopback interface address isassigned, use the IP address of theincoming interface.

IS-IS route Run the displaycurrent-configurationconfiguration isiscommand.

It is recommended that you configure therouter to advertise routes by usingnetwork.You can also configure the router to importroutes by using the import command.

ISIS wide-metric

Run the displaycurrent-configurationconfiguration isiscommand.

The cost style parameter of IS-IS isnarrow,wide,wide-compatible,compatible, narrow-compatible.



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IS-IS address Run the displaycurrent-configurationconfiguration isiscommand.

The network entity can have only oneaddress.Usually, one router can be configured withthree areas at most.

Multicastroutingprotocol

Run the displaymulticast routing-table command.

l PIM-SM is used in the multicastdomain.

l IGMP is enabled on the interfacesinvolved in multicast routing.

MPLS LSR-ID

Run the displaycurrent-configuration |include mpls lsr-idcommand.

l The LSR-ID should use the loopbackaddress. The LSR-ID must be unique inthe backbone network.

l If the loopback interface is not assignedan IP address, use the IP address of theincoming interface or the IP address ofan interface least to be down.

MPLS LDPpeer status

Run the displaympls ldp peercommand.

There is information about LDP peer.

Fire control Check the key partssuch as the cabinet,frame, and cablingtrough.

All parts must be fire-proof. All fireprevention facilities must be in goodcondition.

Theftprevention

Check doors,windows, and theft-proof nets of theequipment room.

They must be in good condition.



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A Glossary

This appendix lists the glossaries in this manual.

C

console Stands for console port. It is a serial null-modem connection used to configurethe local device. By default, the transmission rate is 9600bps.

D

daily routinemaintenance

A maintenance measure carried out by the ordinary maintenance personnel.

F

Flashmemory

A special type of EEPROM that can be erased and reprogrammed in blocksinstead of one byte at a time. Flash memory is memory which retains itscontents even after power is removed.

P

periodicroutinemaintenance

A relatively complex maintenance measure carried out by the maintenancepersonnel who have undergone professional trainings.

R

routinemaintenance

A preventive maintenance measure conducted during the normal operationof the device.

T

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terminal A device that enables you to communicate with a computer. Generally, aterminal is a combination of keyboard and display screen. In networking, aterminal is a personal computer or workstation connected to a mainframe.The personal computer usually runs terminal emulation software that makesthe mainframe think it is like any other mainframe terminal.

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B Acronyms and Abbreviations

This chapter collates glossary and frequently used acronyms and abbreviations in this manual.

B

BGP Border Gateway Protocol

C

CIDR Classless Inter-Domain Routing

F

FTP File Transfer Protocol

I

IBGP Internal BGP

IGMP Internet Group Management Protocol

IP Internet Protocol

IS-IS Intermediate System-Intermediate System

L

LDP Label Distribution Protocol

LSR Label Switching Router

M

MBGP Multiprotocol Border Gateway Protocol

MPLS Multi-Protocol Label Switching

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MTU Maximum Transmission Unit

N

NTP Network Time Protocol

O

OSPF Open Shortest Path First

P

PIM Protocol Independent Multicast

PIM-SM Protocol Independent Multicast Sparse Mode

S

SDH Synchronous Digital Hierarchy

SONET Synchronous Optical Network

T

TFTP Trivial File Transfer Protocol

V

VPN Virtual Private Network

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Routine maintenance(v600 r003c00 02)

Engineering

Transcript of Routine maintenance(v600 r003c00 02)