C HAPTER 4. E NABLE MODE CONFIGURATION .

DASAN NETWORKSGPON TRAINING

CHAPTER 4. ENABLE MODE CONFIGURATION

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1. Displaying System Configuration

2. System Configuration Management

3. Restoring Default Configuration

4. Running Process

5. Core Dump File

6. Network Connection

7. Displaying Users Connected to System

8. MAC Table

9. System Information

10. Packet Dump and Debug Packet Dump

11. OLT Rebooting


Table of contents


Introduction

Privileged EXEC Enable Mode - To configure the switch, you need to open Privileged EXEC Enable mode with the enable command, then the system prompt will changes from SWITCH> to SWITCH#.

To access this level, You should set on CLI:SWITCH login: adminPassword:SWITCH> enableSWITCH#

The same is on all DASAN OLTs: V5812G|V5824G|V8240


1. Displaying System Configuration


2. System Configuration Management

Please remember that after: restore layer2-defaults – running and startup configuration will be

cleared to default – saved config files will be still presents (show config-list):

restore factory-defaults – running and startup configuration will be cleared to default and also all saved config files will be deleted (show config-list)


3. Restoring Default Configuration

Running Process

DASAN OLTs provides a function that shows information of the running processes. The information with this command can be very useful to manage the switch.


4. Running Process

Core Dump File

A core dump file contains the memory image of a particular process, or the memory images of parts of the address space of that process, along with other information such as the values of processor registers. The V5812G can be configured to generate core dumps and save them in ramdisk for useful debugging aids in several situations such as accesses to non-existent memory, segmentation errors.


5. Core Dump File


7. Displaying Users Connected to System

If You want to check on which port one MAC address is connected, You can use „| include” option:


8. MAC Table


9. System Information


10. Packet Dump and Debug Packet Dump (1)

Packet Dump

Failures in network can occur by certain symptom. Each symptom can be traced to one or more problems by using specific troubleshooting tools. DASAN OLTs provides the debug command to dump packet. Use debug commands only for problem isolation. Do not use it to monitor normal network operation. The debug commands produce a large amount of processor overhead.


10. Packet Dump and Debug Packet Dump (2)

Debug Packet Dump

DASAN OLTs provides network debugging function to prevent system overhead for unknown packet inflow. Monitoring process checks CPU load per 5 seconds. If there is more traffic than threshold, user can capture packets using tcpdump and save it to file. You can download the dump file with the name of file-number.dump after FP connection to the system. See the dumped packet contents with a packet analyze program.

EXAMPLE:

SWITCH# debug packet log 1000 90 30 10

when cpuload will be higher then 90% for at least 30 seconds, OLT will create automatically dump file with 1000 number of packets which can cause CPU overload at this time. OLT will create up to 10 files.


11. OLT Rebooting

When installing or maintaining the system, some tasks require rebooting the system by various reasons. Then you can reboot the system with a selected system OS. System rebooting wipes all the existing configurations. To save the configurations before the rebooting, answer “y” to the question Do you want to save the system configuration? [y/n]. If you answer “n” by misoperation, answer “n” to the next question Do you want to reload the system? [y/n] to cancel the rebooting and start the operation all over again.

Please remember about save configuration before reload – otherwise You will lost configuration which was not saved before.

THANK YOU


If You need help please contact: [email protected]

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C HAPTER 4. E NABLE MODE CONFIGURATION .

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