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Digital Microwave Radio

Systems

MDRS 155

OSPF Functions and Commands

MDRS 155 S Release 4.3MDRS 155 E Release 2.3 SR1

05PHA00065AEY CUAVersion: 0002; 07.2004

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Marconi Communications GmbHD-71520 BacknangTelefon (07191) 13-0 Telefax (07191) 13-3212http://www.marconi.comCopyright 2004 by Marconi Communications GmbH

(hierin bezeichnet als Marconi)nderungen vorbehalten Gedruckt in Deutschland

Marconi, Marconi Communications, das Marconi Logo,Skyband, MDRS, MDMS und ServiceOn Access sindeingetragene Markenzeichenvon Marconi Communications GmbH.Windows ist ein eingetragenes Markenzeichen derMicrosoft Corporation, Redmond.

Marconi Communications GmbHD-71520 Backnang

Telephone +49 (7191) 13-0 Telefax +49 (7191) 13-3212http://www.marconi.comCopyright 2004 by Marconi Communications GmbH(herein referred to as Marconi)Specifications subject to change Printed in Germany

Marconi, Marconi Communications, the Marconi logo,Skyband, MDRS, MDMS and ServiceOn Access aretrademarks ofMarconi Communications GmbH.Windows is a trademark of Microsoft Corporation,

Redmond.

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OSPF Functions and Commands Contents

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Contents

1 OSPF and MDRS.............................................................................................. 1-1

1.1 Introduction .......................................................................................................................... 1-1

1.2 IP router ................................................................................................................................ 1-11.2.1 Brief description .............................................................................................................. 1-11.2.2 Router features............................................................................................................... 1-21.2.3 Configuration................................................................................................................... 1-2

2 "Telnet" Command Set.................................................................................... 2-1

2.1 Introduction .......................................................................................................................... 2-1

2.2 Commands of all command levels..................................................................................... 2-1

2.3 Commands of the "Telnet" command level ...................................................................... 2-2

2.4 Commands of the "OSPF" command level ....................................................................... 2-32.4.1 General commands ........................................................................................................ 2-32.4.2 OSPF configuration memories........................................................................................ 2-3

2.4.2.1 OSPF Configuration Memory Management................................................................ 2-32.4.3 Commands for editing an area ....................................................................................... 2-42.4.4 Commands for editing interfaces.................................................................................... 2-42.4.5 Commands for editing static routes ................................................................................ 2-52.4.6 Commands for combining IP networks........................................................................... 2-62.4.7 Commands for configuring a "virtual link"....................................................................... 2-62.4.8 Commands for changing the "Router ID"........................................................................ 2-72.4.9 Commands for AS statistics............................................................................................ 2-7

3 Router Connections ........................................................................................ 3-1

3.1 "Embedded" Telnet session ............................................................................................... 3-13.1.1 LMT................................................................................................................................. 3-13.1.2 MSP ................................................................................................................................ 3-1

3.2 Telnet session via a Windows PC ...................................................................................... 3-1

3.3 Telnet session via workstation........................................................................................... 3-1

4 Configuration Help .......................................................................................... 4-1

4.1 Introduction .......................................................................................................................... 4-1

4.2 Logging in............................................................................................................................. 4-1

4.3 Static routes ......................................................................................................................... 4-1

4.4 Dynamic OSPF routing........................................................................................................ 4-2

5 Status Tables ................................................................................................... 5-1

5.1 Configurations in the AS..................................................................................................... 5-15.1.1 Interface assignment ...................................................................................................... 5-15.1.2 Area parameters ............................................................................................................. 5-15.1.3 Static routes.................................................................................................................... 5-2

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5.1.4 Combined IP networks.................................................................................................... 5-25.1.5 Virtual links......................................................................................................................5-2

5.2 Requesting statistics data................................................................................................... 5-35.2.1 Overview ......................................................................................................................... 5-35.2.2 Examples of system responses ......................................................................................5-3

5.2.2.1 Area overview.............................................................................................................. 5-35.2.2.2 Overview of external routes......................................................................................... 5-35.2.2.3 Overview of the router configuration ........................................................................... 5-45.2.2.4 Overview of the interface configuration.......................................................................5-45.2.2.5 Overview of the link state database ............................................................................ 5-45.2.2.6 Analysis of a LSA ........................................................................................................ 5-55.2.2.7 Overview of OSPF neighbors...................................................................................... 5-55.2.2.8 Overview of the routing table....................................................................................... 5-6

6 Complementary Explications.......................................................................... 6-1

6.1 "Virtual link" using the MDRS 155 Digital Microwave Radio System............................. 6-1

6.1.1 "Unnumbered" interface.................................................................................................. 6-16.1.2 "Demand circuit".............................................................................................................. 6-16.1.3 Router ID......................................................................................................................... 6-1

6.2 Uploading and downloading router data ...........................................................................6-26.2.1 Router data upload ......................................................................................................... 6-2

6.2.1.1 MDRS 155 S with LMT................................................................................................6-26.2.1.2 MDRS 155 E with MSP ............................................................................................... 6-26.2.1.3 MDRS 155 S with SOA ...............................................................................................6-26.2.1.4 MDRS 155 E with SOA ...............................................................................................6-2

6.2.2 Router data download.....................................................................................................6-36.2.2.1 MDRS 155 S with LMT................................................................................................6-36.2.2.2 MDRS 155 E with MSP ............................................................................................... 6-3

6.2.2.3 MDRS 155 S with SOA ...............................................................................................6-36.2.2.4 MDRS 155 E with SOA ...............................................................................................6-3

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OSPF Functions and Commands Figures

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Figures

Fig. 1-1 Router interface................................................................................................................ 1-1Fig. 2-1 OSPF configuration memory........................................................................................... 2-3

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Figures OSPF Functions and Commands

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This page has been left blank for editorial reasons.

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OSPF Functions and Commands Tables

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Tables

Table 2-1 Commands of all command levels ................................................................................ 2-1Table 2-2 Commands of the "Telnet" command level.................................................................. 2-2Table 2-3 Commands of the OSPF command level ...................................................................... 2-3Table 2-4 Commands for editing an area....................................................................................... 2-4Table 2-5 Commands for interface editing .................................................................................... 2-4Table 2-6 Commands for editing static routes.............................................................................. 2-5Table 2-7 Commands for combining IP networks......................................................................... 2-6Table 2-8 Commands for configuring a "virtual link"................................................................... 2-6Table 2-9 Commands for changing the "Router ID"..................................................................... 2-7Table 2-10 Commands for AS statistics........................................................................................... 2-7Table 5-1 Interface assignments..................................................................................................... 5-1Table 5-2 Area parameters .............................................................................................................. 5-1Table 5-3 Routing table of static routes......................................................................................... 5-2Table 5-4 Net range.......................................................................................................................... 5-2Table 5-5 Virtual links ...................................................................................................................... 5-2Table 5-6 Area overview .................................................................................................................. 5-3Table 5-7 AS-external LSAs ............................................................................................................ 5-3Table 5-8 Interface configuration.................................................................................................... 5-4Table 5-9 Link State Database ........................................................................................................ 5-4Table 5-10 OSPF neighbors .............................................................................................................. 5-5Table 5-11 OSPF routing table .......................................................................................................... 5-6

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Tables OSPF Functions and Commands

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OSPF Functions and Commands Abbreviations

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Abbreviations

Abbreviation Meaning

10BaseT Ethernet -Standard for local baseband networks, 10 Mbit/sABR Autonomous Border Router

AS Autonomous SystemASBR Autonomous System Boundary RouterDCC Data Communication ChannelDCCM Data Communication Channel in the MSOHDCCR Data Communication Channel in the RSOHECC Embedded Control ChannelIDU Indoor UnitIF InterfaceIP Internet ProtocolIR Internal Router LAN Local Area NetworkLMT Local MaintenanceTerminal (Service PC)LSA Link State Advertisement

LSDB Link State DatabaseMSP Modular Service PCnoadv no advertisementOSPF Open Shortest Path FirstRFC (...) Request for Comment (on Internet Standard)SOA ServiceOn AccessSOH Section OverheadSTM-1 Synchronous Transport Module 155 Mbit/sTCP Transmission Control ProtocolTOS Type of ServiceWAN Wide Area NetworkWS Workstation

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Abbreviations OSPF Functions and Commands

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OSPF Functions and Commands OSPF and MDRS

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1 OSPF and MDRS

1.1 Introduction

This version of MDRS 155 S and MDRS 155 E Digital Microwave Radio Systems is equipped with adynamic IP router. These systems can be monitored and controlled via TCP/IP and are appropriate fortransmitting and routing IP data within TCP/IP networks.The transmission bandwidth of the IP channel is about 170 kbit/s when using the DCCR and about360 kbit/s when using the DCCM. The DCCR and DCCM are data channels for transporting managementdata in the SOH included in the STM-1 data stream.The implementation of OSPF is based on OSPF version V2 in compliance with RFC 2328. The IPprotocol is based on IPV4 in compliance with RFC 791.

1.2 IP router

1.2.1 Brief description

In TCP/IP networks, MDRS 155 S and MDRS 155 E Digital Microwave Radio Systems operate as OSPFrouters. Both sides of the Digital Microwave Radio System are working as an IP router each.The IDU or ECC Gateway of the Digital Microwave Radio System is equipped with a LAN interface andWAN interface. The LAN interface is made available at a RJ45 port located on the front panel. The WANinterface is implemented via one of the ECCs over the radio link and is not accessible by the user.In the OSPF network, the radio link set up via the selected ECC represents a so-called "unnumberedpoint-to-point link without an own IP address. The static route via the radio link is establishedautomatically and does not appear in the OSPF routing table. The special feature is that both routersknow the LAN IP address of the far end. Thus, from the logic view a radio link can be considered as onesingle router.

Fig. 1-1 Router interface

The OSPF router in the MDRS 155 is equipped with

Interface LAN 10BaseT interface (IDU or ECC Gateway)

Interface ECC via radio link

The ECC is configured using the LMT or MSP Operator program.

Line sideDCCR/DCCM

LAN10BaseT

QD2RS-485

Radio sideDCCR/DCCM

(ECC)

2

1LAN10BaseT

QD2RS-485

Line sideDCCR/DCCM

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OSPF and MDRS OSPF Functions and Commands

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1.2.2 Router features

The routers available in the MDRS 155 S and MDRS 155 E are fully functional OSPF routers. Theyinteract with third-party systems without any problems. Some special features must be taken intoconsideration as the MDRS 155 processor executes all management functions for the Digital Microwave

Radio System. The number of possible dynamic routing entries is limited to 2000. Entries exceeding thismaximum will be discarded.The OSPF router in the MDRS 155 can manage two areas. In addition, static routing entries are possiblewhich are managed within the AS. The latter permits the OSPF router in the system to be used as

Internal Router (IR); Area Border Router (ABR); Autonomous System Boundary Router (ASBR).

When used as ABR, this router also manages a stub area. In stub areas, AS-external LSAs are notpropagated. The OSPF router in the MDRS 155 can also be configured for a so-called "totally stubbyarea. In this case, summary LSAs are no longer imported from the AS.If static routes are configured despite OSPF, they can be individually assigned attributes determining their

handling and processing in the AS.

1.2.3 Configuration

The OSPF router in the MDRS 155 is configured via the TCP/IP network or serially using a so-called"embedded" Telnet session in the LMT Operator software or MSP appplication via the serial interface.Please note that the following parameters can be set both via the LMT and MSP Operator programs:

IP address of the system; Network mask; Gateway.

With MDRS 155 S, the passwort can be adjusted only via the SOA Network Management System. The"User Name" does not have to be set. It is "marconi" in the as-delivered state.

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OSPF Functions and Commands "Telnet" Command Set


2 "Telnet" Command Set

2.1 Introduction

All "Telnet" commands must be entered in small letters. Confirm each entry by pressing the "Enter" key.Enter a blank between the command, address and attributes.Separate the status entry or attribute value by means of a "=" symbol. Do not enter any additional blankshere.

2.2 Commands of all command levels

Command Command syntax (list of options) Description

help help Shows all available commands

Table 2-1 Commands of all command levels

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"Telnet" Command Set OSPF Functions and Commands


2.3 Commands of the "Telnet" command level

Command Command syntax(list of options)

Description

arp arp

[-a][-d][-s]

Assignment of the IP address to the MAC address

[-a] Displays the ARP table;[-d] Deletes an entry, e.g. arp -d ;[-s] Adds an entry, e.g. arp -s ;

exit exit Closes a Telnet session (not embedded Telnet session "LMT).ifstat ifstat Displays the list of all interfaces.netstat netstat [-a]

[-r][-s]

[-a] Displays active connections;[-r] Displays the Routing table;[-s] Displays protocol statistics.

ospf ospf Changes over to the 'ospf' command level.ping ping

[timeout]ping -s

[count]

Sends an ICMP echo request to another IP subscriber.[timeout] Maximum response time[count] Number of ICMP requests

route route -a Outputs the Routing table.uptime uptime Displays as to how long the system has been operating without

a reboot.traceroute traceroute

[-m ]

[-q ]

[-f][-i initial_ttl][-l]

[-n][-Q maxquit][-r][-S][-v][-c stoptime][-p port][-s source_addr][-t tos][-w waittime][packetsize]

Outputs the route to a destination address.[-m ] Sets the "time to live" box (max. number ofhops) in the IP header (1-255);[-q ] Number of requests (in packets) to be sent;

Prevents fragmentation;Set an initial 'time to live' (default: ttl=1);Lists ttl values;Outputs numeric addresses;

Maximum number of consecutive timeouts;Bypasses normal routing;Displays per hop statistics values;Verbose mode: delivers more information;Delay time between two requests sent to a Cisco router;Specification of a special UDP port for requests;Source IP address;[-t tos] Sets the TOS field in the IP header (0-7);Sets the waiting time for a response (default: 3 seconds);Destination address;Packet size of ICMP packets to be sent;

version version Displays the current software version.

reboot reboot now Reboots the ECC Gateway. In consequence, the networkelement logs off from the SOA for the duration of the rebootprocess. The current Telnet connection is interrupted.Please note that the OSPF router is also rebooted, i.e. all OSPFroutes will get lost temporarily.STM-1 signal transmission is not affected.

ipnvconf ipnvconf

[inet ][netmask ][gw ]

Outputs the current setting of the IP address, sub-net mask andstandard Gateway.Input of a new IP address, sub-net mask and standard Gateway.The parameters can also be applied individually. To activate theconfiguration, a "Reboot" must be performed (command: rebootnow).

Table 2-2 Commands of the "Telnet" command level

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2.4 Commands of the "OSPF" command level

2.4.1 General commands

Command Command syntax

(list of options)

Description

activate activate Activates all entries and quits the configuration level.cancel cancel Quits the configuration mode without saving entries made.config config Changes over to the configuration mode.load load Downloads the OSPF configuration data to the OSPF kernel.quit quit Changes over to the OSPF command level.restart restart Restarts the OSPF process and deletes the LSDB.save save Saves all current settings.

Table 2-3 Commands of the OSPF command level

2.4.2 OSPF configuration memories

2.4.2.1 OSPF Configuration Memory Management

Three memories are used for storing and managing OSPF configuration data (see Fig. 2-1):

1. The current operating configuration is contained in a volatile RAM.

2. For changing the current operating configuration, an independent configuration memory is available.The latter is used to intermediately save the new configuration data to the volatile RAM before therelevant changes are activated.

3. The non-volatile memory stores all configuration data saved and holds these even in case of a powersupply failure.

Fig. 2-1 OSPF configuration memory

The transitions between the different OSPF configuration memories are managed by means of theappropriate commands of the Command Line Interface (CLI).

config

save

load

activate

RAM

RAM

EEPROM

1

3

2

Command inputCommand LineInterface (CLI)

Currentoperating configuration

(running config)

Changedconfiguration

(changed config)

Saved configuration(saved config)

Non-volatile memory

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The configuration data for the current operating configuration are always uploaded from the non-volatilememory after booting the processor. To ensure that only valid and tested OSPF configuration data aresaved to the non-volatile memory, only data of the currently running operating configuration can be savedto this memory (command: "Save").

2.4.3 Commands for editing an area


Description

area delete area delete Deletes an area.area editattribute

area edit

[stub=(no|yes)][importsum=(no|yes)]

[stubcost=]

Changes an existing area.Configures the selected area as stub area.Summary LSAs can be/must not be imported into the area.Costs incurring within the stub area.

area addattribute

area add

[stub=(no|yes)][importsum=(no|yes)][stubcost=]

Adds a new area.Configures the selected area as stub area.

Summary LSAs can be/must not be imported into the area.Costs incurring within the stub area.

area show area show Displays a list of all areas configured.

Table 2-4 Commands for editing an area

2.4.4 Commands for editing interfaces


Description

interface

delete

if delete Deletes the interface at the OSPF level.

interfaceeditattribute

if edit

[priority=][xmt=][rxmt=][hello=][cost=][poll=]

[dead=][passive=(no|yes)]

Edits an existing interface.

Router priority in the interface network;Delay time for sending out LSAs;Interval between the repetition of LSAs;Hello interval in seconds;Output-side costs of the interface;Polling interval between Hello packets after a router hasbeen identified 'offline';Dead time interval in seconds;OSPF process at this interface ON/OFF.

interfaceaddattribute

if add

[priority=][xmt=][rxmt=][hello=][cost=][poll=]

[dead=][passive=(no|yes)]

Adds a new interface.

Router priority in the interface network;Delay time for sending out LSAs;Interval between the repetition of LSAs;Hello interval in seconds;Output-side costs of the interface;Polling interval between Hello packets after a router hasbeen identified 'offline';Dead time interval in seconds;OSPF process at this interface ON/OFF.

interfaceshow

if show Displays a list of all interfaces configured.

Table 2-5 Commands for interface editing

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2.4.5 Commands for editing static routes


Description

route delete route delete Deletes a static route.

route edit

attribute

route edit

[type2=(yes|no)][direct=(yes|no)]

[noadv=(yes|no)]

[][]

Edits an existing static route.

Fixed costs.If the destination address is part of a locallyattached subnet in which no OSPF runs, usethe direct=yes option. In the local routingtable, the static route is stored as a directroute, but not distributed over OSPF.Distributes a static route over OSPF;no=distributing a static routeyes=not distributing a static routeRoute costsInterface to be used for routing(1=LAN; 2=ECC)

route add

attribute

route add

[type2=(yes|no)][direct=(yes|no)]

[noadv=(yes|no)]

[][]

Adds a static route.

Assign fixed costs;If the destination address is part of a locallyattached subnet in which no OSPF runs, usethe direct=yes option. In the local routingtable, the static route is stored as a directroute, but not distributed over OSPF.Distributes a static route over OSPF;no=distributing a static routeyes=not distributing a static route

Route costsInterface to be used for routing(1=LAN; 2=ECC)

route show route show Displays a list of all static routes.

Table 2-6 Commands for editing static routes

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2.4.6 Commands for combining IP networks

Max. 30 entries are possible.


(list of options)

Description

net-range delete net-range delete

Deletes IP network combinations

net-rangeedit

attribute

net-range edit

[noadv=(yes|no)]

Edits IP network combinations

Distributes a IP network combination over OSPF;no=distributing a IP network combinationyes=not distributing a IP network combination

net-range add

attribute

net-range add

[noadv=(yes|no)]

Adds a new IP network combination

Distributes a IP network combination over OSPF;no=distributing a IP network combinationyes=not distributing a IP network combination

net-range show net-range show Displays a table of all IP network combinations

Table 2-7 Commands for combining IP networks

2.4.7 Commands for configuring a "virtual link"


(list of options)

Description

virtualdelete

virtual delete

Deletes the virtual link.

virtualeditattribute

virtual edit

[xmt=]

[rxmt=]

[hello=][dead=]

Edits an existing virtual link.

Delay time for sending out LSAs(transmission delay: 1-9999)Interval between the repetition of two LSAs(retransmit interval: 1-9999)Hello interval in seconds (1-9999)Dead time interval in seconds (1-9999)

virtualaddattribute

virtual add

[xmt=]

[rxmt=]

[hello=][dead=]

Adds a new virtual link.(area_id = transit-area)

Delay time for sending out LSAs(transmission delay: 1-9999)Interval between the repetition of two LSAs(retransmit interval: 1-9999)Hello interval in seconds (1-9999)Dead time interval in seconds(1-9999)

virtual

show

virtual show Displays a list of configured virtual links

Table 2-8 Commands for configuring a "virtual link"

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2.4.8 Commands for changing the "Router ID"


Description

routerid

edit

routerid edit

oder

Edits the Router ID. The default value is 'auto. Thus, the

IP address of the LAN interface is used as Router ID. Tochange the Router ID, the appropriate entry must bemade in the IP address format.

routeridshow

routerid show Displays the current value of the Router ID.

Table 2-9 Commands for changing the "Router ID"

2.4.9 Commands for AS statistics


Description

stats area stats area Displays a table showing the current status of the area.stats as-external

stats as-external Displays LSAs of type 5.

statsgeneral

stats general Displays general router parameters.

stats if stats if Displays information on the interfaces.stata lsa stats lsa

Analyzes a certain LSA.

stats lsdb stats lsdb Displays the LSDB of an area including LSAs oftypes 1-4.

statsneighbor

stats neighbor Displays a table of OSPF neighbors of the interfacesavailable.

stats route stats route Displays the OSPF routing table.

Table 2-10 Commands for AS statistics

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OSPF Functions and Commands Router Connections


3 Router Connections

3.1 "Embedded" Telnet session

3.1.1 LMT

As from version 7.0 onwards, the "LMT Operator software supports the "embedded" Telnet session.Using a serial cable (D-Sub to RJ45), connect your PC to the IDU of the Digital Microwave Radio System.Start up the LMT and select the "serial" connection type option.

The LMT password is (default).The MDRS 155 S password is (default).

In case of an online session, you can press the appropriate menu bar icon for activating the "Embedded"Telnet session. To access the OSPF router from the LMT, you require no additional password. The mainmenu will be displayed immediately.

3.1.2 MSP

From Application 1.23 onwards, the "MSP Operator software supports the "embedded" Telnet session.Using a serial cable (D-Sub to D-Sub), connect your PC to the ECC Gateway in the OHAU of the MDRS155 E. Start up the SISA network driver and then the Network Manager.

Select the MDRS 155 system and call up the Equipment View. Select the OHAU by mouse-click. In theECC Gateway module, call up the "Command input" menu item under "Management - Configuration". Toaccess the OSPF router from the MSP, you require no additional password. The main menu will bedisplayed immediately.

3.2 Telnet session via a Windows PC

The PC is connected to the TCP/IP network via a network port. If the required MDRS system is notlocated in the same network as your PC, you must enter a route in the latter which indicates the Gatewaythat can be used to address the MDRS.

Execute the following work steps:

1. Click the "Start Programs MS-DOS input menu items.2. Type in The Telnet session starts.3. Login: admin (default).

3.3 Telnet session via workstation

The workstation (WS) is connected to the TCP/IP network via a network port. If the required MDRSsystem is not located in the same network as your workstation, you must enter a route in the latter whichindicates the Gateway that can be used to address the MDRS.

1. Open command shell (dtterm).2. Telnet < IP address > The Telnet session starts.3. Login: admin4. Password: marconi (default).

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OSPF Functions and Commands Configuration Help


4 Configuration Help

4.1 Introduction

First of all the following IP configurations must be made using the LMT or MSP Operator software:

IP address setting Network mask setting Gateway setting

The information required for these settings is supplied by your network administrator.

Note: In an OSPF network, a Gateway is normally not necessary.Thus, the Gateway entry is .

4.2 Logging in

Access to the MDRS router is possible serially using the LMT or MSP Operator software, via the TCP/IPnetwork using a PC (Windows, Linux) or via a workstation.

After setup of a connection to the MDRS router in a "Telnet" session, enter the user name "admin andthe password. The user name "admin cannot be changed. The default password is "marconi. Thispassword can be changed only by the network administrator from the SOA Network ManagementSystem.

After completion of the login process, the prompt appears in the form of the IP address of the system andthe "Telnet" note. You are now in the main menu of the "Command Line Interface.

4.3 Static routes

Static routes can be entered only via the OSPF level. The MDRS router is an OSPF router. Static routesalso have OSPF attributes.

In the main menu, enter the command

to change over to the OSPF command level.Here you only have read-only access.

Using the command

you can activate the configuration mode for the OSPF router.

Note: Do not make any entries if you do not have a network plan or configuration order.

To add a static route, enter the following command:

.

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Configuration Help OSPF Functions and Commands


To activate your entries, enter the

command. Then click the

button to save the changes you have made. After the saving process, you are again at the OSPFcommand level with read-only access.

If you want to quit the OSPF configuration mode without saving your entries, click the

button.

4.4 Dynamic OSPF routingWith OSPF routers, dynamic routes are entered and managed automatically. Using the OSPFconfiguration parameters, the administrator only defines the way the router shall work in the AS and therole it shall play.

Note: Do not make any entries if you do not have a network plan or configuration order.

Start out from the OSPF command level as described in the "Static routes" section and activate theconfiguration mode.

Work step 1

With the MDRS router, active OSPF by entering the following command:

An area 2 is - for example - described with area ID 0.0.0.2. The specification of one area is sufficient if therouter shall be used as "Internal Router" (IR).

To use the MDRS router as "Area Border Router" (ABR), a second area ID must be entered according tothe same principle.

Enter the

command to call up a list of the areas entered.

To assign an area a certain attribute different from the default settings, this attribute can be edited bymeans of the following command:

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Work step 2

Both interfaces of the MDRS router must now be assigned to the area(s). One IDU of the MDRS servestwo interfaces. Interface 1 is the LAN interface (RJ45), interface 2 the ECC channel. Since the latter isphysically served by the system, it cannot be accessed by the user.

Using the command

the LAN interface is assigned to the area with ID .

Using the command

the ECC interface is assigned to the area with ID .

Using the command

you can request a list of all interfaces entered.

To assign an interface an attribute different from the default settings, this attribute can be changed - forexample - at the LAN interface by entering the following command:

.

To activate your entries, use the

command. Then click the

button to save all changes made. After the saving process, you are again at the OSPF command levelwith read-only access.

If you want to quit the OSPF configuration mode without saving your entries, click the

button.

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Configuration Help OSPF Functions and Commands



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OSPF-Funktioinen und -Befehle Status Tables


5 Status Tables

5.1 Configurations in the AS

5.1.1 Interface assignment

Using the command, you can request a list of interface assignments. If the table displayed isempty, the system has not yet been configured for the OSPF environment.

if area_id priority xmt rxmt hello cost dead poll passive

1 0.0.0.2 1 100 100 10 5 40 60 no2 0.0.0.2 1 100 100 10 1 40 60 no

Table 5-1 Interface assignments

if: Interface number (1=LAN, 2= ECC).area_id: Number of the areas to which the interface is assigned.

priority: Priority of the router interface in the assigned network.xmt: Delay time in seconds for sending out LSAs.rxmt: Interval in seconds between the repetition of LSAs.hello: Interval in seconds between two "Hello" packets.cost: Output-side costs of the interface.dead: Interval until an OSPF network subscriber is deleted from the dynamic routes.poll: Polling interval in seconds between "Hello" packets after a router has been identified 'offline'

(procedure for restoring communication).passive: If this parameter is set to "yes, the configured OSPF interface does not participate

in the information exchange of the routers available in a network.

5.1.2 Area parameters

Using the command, you can request a list of all areas configured. If the table displayed isempty, the system has not yet been configured for the OSPF environment. Max. two area entries arepossible.

area_id stub Stubcost Import_summs

0.0.0.2 No 1 No

Table 5-2 Area parameters

area_id: Area number configured in the system.stub: Stub area (yes/no); area into which AS-external LSAs are not propagated.stubcost Costs of the default route for substitution of external routes.import_summs: Import of summary LSAs (yes/no).

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5.1.3 Static routes

Using the command, you can request a list of all static routes configured.

net mask Gateway type2 direct noadv cost if

0.0.0.0 0.0.0.0 0.0.0.0 yes no yes 60 0191.3.0.0 255.255.0.0 172.28.138.4 yes no no 60 1

Table 5-3 Routing table of static routes

net: IP address of the destination networkmask: Network mask of the destination networkgateway: The destination network is addressable via this Gateway.type2: Fixed costs are charged for the static route (yes/no).direct: The Gateway belongs to a locally connected sub-network without OSPF.

The static route is listed in the local Routing table, but is not imported in the OSPF.noadv: This route is propagated in the OSPF; Note: (no= yes, yes=no).cost: Costs of this static route

if: This route passes interface 1=LAN or 2=ECC or 0=internal.

5.1.4 Combined IP networks

Using the command, you can request a list of existing IP network combinations. If thetable displayed is empty, there are no 'net ranges'.

area_id Net mask noadv

0.0.0.2 191.0.0.0 255.255.0.0 no

Table 5-4 Net range

area_id: Area number of the area in which networks are combined.net Network address of the IP network combinationmask: Network mask of the IP network combinationnoadv: Indicates whether this IP network address is propagated by the router or not.

Please note the following: no= yes, yes=no.

5.1.5 Virtual links

Using the command, you can request a list of existing virtual links. If the table displayedis empty, there are no virtual links configured.

area_id router_id xmt rxmt hello dead

0.0.0.2 191.1.2.3 100 100 10 40

Table 5-5 Virtual links

area_id: Area number of the transit areaxmt: Delay time in seconds for sending out LSAsrxmt: Interval in seconds between the repetition of two LSAshello: Interval in seconds between two "Hello" packets.dead: Interval until an "OSPF network subscriber is deleted from the dynamic routing table.

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5.2 Requesting statistics data

5.2.1 Overview

The overview supplies a list of all statistics data that can be requested.

stats area stats as-externalstats generalstats ifstats lsa stats lsdb stats neighborstats route

5.2.2 Examples of system responses

5.2.2.1 Area overview

Using the command, you can request information on the area.

Area ID #Ifcs #Routers #LSAs Xsum Comments

0.0.0.2 2 4 10 0x478e7

Table 5-6 Area overview

Area_ID: Area number#Ifc: Interface of the router in this area#Router: Number of routers available in an area (a Digital Microwave Radio System also being counted as a

router)#LSA Number of LSAs of types 1-4 in this areaXsum: Checksum

5.2.2.2 Overview of external routes

Using the command, you can request a list of all type 5 LSAs available.

Type LS_ID ADV_RTR Seqno Xsum Age

5 191.50.0.0 191.6.0.8 0x80000087 0x1d78 585

Table 5-7 AS-external LSAs

Type: LSA type; 5= AS-externalLS_ID: Link state ID; destination network of the external static route

ADV_RTR: LSA sourceSeqno: Sequence numberXsum: Checksum

Age: Age of the LSA

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5.2.2.3 Overview of the router configuration

Using the command, you can request the system database of the router.

OSPF Router ID: 191.3.0.4 # AS-external-LSAs: 102

ASE checksum: 0x30df6d # ASEs originated: 0ASEs allowed: 0 # Dijkstras: 129# Areas: 1 # Nbrs in Exchange: 0MOSPF enabled: no Inter-area multicast: noInter-AS multicast: no In overflow state: noospfd version: 2.16

5.2.2.4 Overview of the interface configuration

Using the command, you can request a table showing all interface data.

Phy Addr Area Type State #Nbr #Adj CostLAN 191.3.0.4 0.0.0.2 Bcast DR 1 1 1ECC 0.0.0.0 0.0.0.2 P-P P-P 1 1 1

Table 5-8 Interface configuration

Phy: LAN/LAN interface; ECC/RadioAddr.: IP addressArea: This interface belongs to the area.Type: Bcast/Broadcast; P-P/Point-to-PointState: Router function in this network#Nbr: Number of neighbors#Adj: Number of OSPF neighbors

Cost: Costs of this interface

5.2.2.5 Overview of the link state database

Using the command, you can request the LSDB (Link State Database) table.

Type LS_ID ADV_RTR Seqno Xsum Age

1 191.3.0.3 191.3.0.3 0x8000056a 0x782f 2101 191.3.0.4 191.3.0.4 0x80000439 0x4db3 5401 191.4.0.6 191.4.0.6 0x8000009c 0x7322 12931 191.6.0.8 191.6.0.8 0x800005f1 0x4308 8502 191.3.0.4 191.3.0.4 0x80000096 0x8703 15402 191.4.0.8 191.6.0.8 0x8000013a 0x4f7f 8503 172.28.138.0 191.3.0.3 0x8000008b 0xb4df 2103 191.1.0.0 191.3.0.3 0x80000087 0x0822 2103 192.168.2.0 191.3.0.3 0x80000087 0x8019 2104 191.1.0.2 191.3.0.3 0x8000008a 0xdf44 210

# LSAs: 10*

Table 5-9 Link State Database

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Type: LSA type; 1=Router LSA, 2=IP network LSA, 3= Network summary LSA, 4=ASBRSummary LSA; note: LSAs of type 5 are not displayed in the LSDB and can be requestedby means of the command.

LS_ID: This LSA contains information on ....ADV_RTR: This LSA has been sent by ...Seqno: Sequence no. of this LSA

Xsum: Checksum of this LSAAge: Age of this LSA in seconds* Number of LSAs stored in the database

5.2.2.6 Analysis of a LSA

Using the command, you can request a tabledisplaying the contents of this LSA.

Note: It is reasonable and recommended to request the overview of the LSDB first, in orderto be able to select a certain LSA.

Link State ID: 191.3.0.3Advert. Rtr.: 191.3.0.3LS Seqno: 0x8000056aLS Xsum: 0x782f LS Length: 36// Router-LSA bodyRouter type: 0x1# links: 1// Link #0Link ID: 191.3.0.4Link Data: 191.3.0.3Link type: 2

# TOS metrics: 0Link cost: 5

5.2.2.7 Overview of OSPF neighbors

Using the command, you can request a table giving an overview of the OSPFneighbors of the interfaces.

Phy Addr ID State #DD #Rq #Rxmt

LAN 191.3.0.3 191.3.0.3 Full 0 0 0ECC 191.4.0.6 191.4.0.6 Full 0 0 0

Table 5-10 OSPF neighbors

Phy: Physical interfaceAddr: IP address of the neighbor of this interfaceID: Router IDState: Negotiation status with the OSPF neighbor

Full=complete (neighbor has the 'full adjacent' status)#DD: Number of 'Database Description' LSAs still to be sent to the neighbor#Rq: Number of 'Link State Requests' still to be sent to the neighbor#Rxmt: Number of repetitions sent

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5.2.2.8 Overview of the routing table

Using the command, you can call up the OSPF routing table.

Prefix Type Cost Ifc Next-hop Mpaths

172.28.138.0/24 SPFIA 6 LAN 191.3.0.3191.5.0.0/16 SPF 7 ECC 0.0.0.2191.50.0.0/16 SPFE2 20 ECC 0.0.0.2

Table 5-11 OSPF routing table

Prefix: IP address of the destination networkType: Route type; SPFIA = Inter-area; SPF = Intra-area; SPFE = External route

(static route outside the AS)Cost: Costs of this routeIfc: Interfaces used for this routeNext-hop: This route can be addressed using IP address ...Mpaths: Number of routes in this destination network with the same costs.

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OSPF Functions and Commands Complementary Explications


6 Complementary Explications

6.1 "Virtual link" using the MDRS 155 Digital Microwave Radio

System

6.1.1 "Unnumbered" interface

Each IDU of the MDRS 155 Digital Microwave Radio System operates as an independent router. Only theLAN interface has an IP address. The WAN connection to the far end contained in the STM-1 data streamis implemented via an "unnumbered IP connection in the ECC (see section 1.2.1).

When planning the "virtual link using the MDRS 155 system, please note that the path of the "virtual link"is not routed via this "unnumbered point-to-point connection. This means that a LAN interface of theMDRS 155 system is always adjacent to the "transit area". This only applies if the Digital MicrowaveRadio System assumes the function of an ABR or ASBR.

6.1.2 "Demand circuit"

If a "virtual link" is configured between the MDRS 155 and a Cisco router, it represents a "demand circuit"in compliance with RFC1793 between the two routers after termination of the negotiation.Normally, "hello" packets whose frequency depends on the adjusted "hello" interval time are also sent outon a "virtual link". In case of a "demand circuit", "hello packets" are no longer sent out after termination ofthe negotiation of the two ABRs. This means that the setting of the "hello" interval time and "dead time"interval time are relevant only during the initial negotiations necessary for generating the "virtual link".This process is initiated automatically by a Cisco router and accepted and processed by the MDRS 155Digital Microwave Radio System. The MDRS 155 Digital Microwave Radio System does not initiate a"demand circuit".

6.1.3 Router ID

The router ID can be set in the MDRS 155 Digital Microwave Radio System. In the factory setting(default), the router ID is "auto", i.e. the adjusted IP address is also used as router ID.On configuration of the "virtual link", the "virtual link" neighbor is basically addressed with its router ID. Ifthe router ID is changed after configuration of a "virtual link", the link will not exist any longer.

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6.2 Uploading and downloading router data

6.2.1 Router data upload

6.2.1.1 MDRS 155 S with LMT

With MDRS 155 S, the router data are saved to the Master IDU MIB.

After connecting the LMT to MDRS 155 S, call up the Equipment view. Using the right mouse button, clickthe CPU. From the menu displayed, select the "Database" and "Upload" menu items.

In the mask that appears, enter a filename and click the "Save" button. The upload window appears.Choose the "Start" button. At the end of the upload process, the MIB is located in the requireddestination.

6.2.1.2 MDRS 155 E with MSPThe upload of the router configuration can also be executed locally using the MSP. In this case, thebackup is performed in the SISA-0 function group. From the list box displayed, select the "Management"option. Then click the "File transfer" menu item.

In the mask that appears, click the "Upload" button. Then select the directory containing system software2.3. Here you can find the ECCMDBUP.ctl. control file. Select this file and start up the upload process byclicking the "Start" buttton. After completion of the upload process, close the window. A file namedmdb.zib is now contained in the system directory.

Note: If it is necessary to create individual filenames, the filename must be either edited directly orchanged already in the ECCMDBUP.ctl. When doing this, please note the convention of older WindowsSystems 8.3 (filename: max. 8 digits, file type: 3 digits). For making a download, an appropriately

changed ECCMDBDN.ctl must be available. We recommend a systematic archiving of router data bymeans of SOA.

6.2.1.3 MDRS 155 S with SOA

Uploading the router data from MDRS 155 S is remotely possible via SOA. Please note that theconfiguration of the IP router must be included in the microwave radio system MIB.

In the QD2 address list or Topology view, call up the icon for the required MDRS 155 S system. Activatethe "Editing" mode in the "Admin" menu. Then select the "Configuration Basic functions" option. Fromthe menu items offered, select "MIB transfer".

In the mask displayed, highlight the "Upload" option and click the "Execute" button. The MIB is savedautomatically by SOA under the Ref-ID of the corresponding network element.

6.2.1.4 MDRS 155 E with SOA

Uploading the router data from MDRS 155 E is possible remotely via SOA. Please note that only the IProuter configuration data are saved and no other system data.

In the QD2 address list or Topology view, call up the icon for the required MDRS 155 E system. Activatethe "Editing" mode in the "Admin" menu. Then select the "Configuration Basic functions" option. Fromthe menu items offered, select "MIB transfer".

In the mask displayed, highlight the "Upload" option and click the "Execute" button. The MIB is savedautomatically by SOA under the Ref-ID of the corresponding network element.

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6.2.2 Router data download

6.2.2.1 MDRS 155 S with LMT

With MDRS 155 S, router data are downloaded using the microwave radio system MIB.

After connecting the LMT to MDRS 155 S, call up the Equipment view. Using the right mouse button, clickthe CPU. From the menu displayed, select the "Database" and "Download" menu items.

In the mask that appears, select the required filename and click the "Open" button. The download windowappears. Choose the "Start" button. At the end of the download process, the MIB is loaded in the networkelement.

6.2.2.2 MDRS 155 E with MSP

The download of the router configuration can also be executed locally using the MSP. In this case, thetransfer takes place in the SISA-0 function group. From the list box displayed, select the "Management"

option. Then click the "File transfer" menu item.

In the mask that appears, click the "Download" button. Then select the directory containing systemsoftware 2.3. Here you can find the ECCMDBDN.ctl* control file. Select this file and start up the downloadprocess by clicking the "Start" buttton. The download bar displayed shows the progress of the downloadprocess. After completion of the download, close the window.

*or any individual control file

6.2.2.3 MDRS 155 S with SOA

Downloading the router data to MDRS 155 S is possible remotely via SOA. Besides the router data, the

MDRS 155 S MIB also contains all other network element settings.

In the QD2 address list or Topology view, call up the icon for the required MDRS 155 S system. Activatethe "Editing" mode in the "Admin" menu. Then select the "Configuration Basic functions" option. Fromthe menu items offered, select "MIB transfer".

In the mask displayed, highlight the "Download" option and click the "Execute" button. The MIB is calledup automatically by SOA under the Ref-ID of the corresponding network element. If no file is available, a"Not available" message appears.

6.2.2.4 MDRS 155 E with SOA

Downloading the router data to MDRS 155 E is possible remotely via SOA. Please note that only the IProuter configuration data are downloaded and no other system data.

In the QD2 address list or Topology view, call up the icon for the required MDRS 155 E system. Activatethe "Editing" mode in the "Admin" menu. Then select the "Configuration Basic functions" option. Fromthe menu items offered, select "MIB transfer".

In the mask displayed, highlight the "Download" option and click the "Execute" button. The MIB is calledup automatically by SOA under the Ref-ID of the corresponding network element. If no file is available, a"Not available" message appears.

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