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how to change negotiation status and speed of uplink port

Publication Date:  2017-10-26 Views:  277 Downloads:  0
Issue Description

Uplink port of 0/19/0 has the wrong status like bellow, not possible to change back with normal commands as follow:

1: MA5600T(config-if-giu-0/19)#speed  0 1000

2: MA5600T(config-if-giu-0/19)#auto-neg  0 disable




Search help from research, customer may triger a bug of OLT, we need to active system which means to restart system and affect service, after that this problem will be fixed finally. Detailed steps is as bellow:


1:Save and backup current configuration and data to a specify ftp server:
huawei(config)#ftp set

huawei(config)#back up configuration ftp ServerIpAddress backup.cfg  (NOTE: For example filename: backup.cfg)

huawei(config)#backup data ftp
ServerIpAddress backup.dat
 (NOTE: For example filename: backup.dat)

2:Copy backup.cfg to backup_new.cfg, change line “speed 2 100” to “speed 2 1000” for port 0/2/2 in backup_new.cfg as below:( « mdi 2 normal »  should be removed) ,then saved.

3:Check the synchronized status of two control boards and make sure all contents are synchronized.

 huawei(config)#display data sync state

4:Plug out the standby MCUD(assume it as A, such as the backup MCUD. Assume the other MCUD as B), and find another chassis, plug in it.


Performing the Activating System

NOTE:Operation of red statements will affect service.
1:On the standby MCUD A, load backup_new.cfg and execute command “active configuration system”.

huawei(config)#load configuration ftp [ftpserver ip address] backup_new.cfg all

huawei(config)#active configuration system

2:After system (With MCUD A) up, use a fiber connect 0/2/2 and 0/2/3 to check whether 0/2/2 is up. If the changing on MCUD A takes effect, plug it out;

huawei(config)#display board 0/2

huawei(config)#display board 0/3

huawei(config)#display current-configuration sec mcu


3:Plug out the MCUD B from the original chassis (NOTE : The service will be interrupted), and plug in MCUD A (NOTE : Please make sure no more service between MCUD A and the MCUD B, as the configuration on MCUD A will be

4:After MCUD A
is normal, check if the service is normal and the issue is resolved.

5:Plug in the MCUD B again.

6:When the MCUD B is normal, check if the service is normal and the issue is resolved.