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S9300 switch direct connection MAC address clash and disable to ping

Publication Date:  2012-10-23 Views:  560 Downloads:  0

Issue Description

Test S9303 access network, configuration is normal, but business does not work. It cannot ping peer side port, but it can learn peer side ARP, the MAC learnt from peer switch is same with local switch MAC.

Alarm Information


Handling Process

1. Check current system MAC address:
[S9303]dis system-mac
Macs     :1
Index     MAC Addr
default       0018-2000-0006
current       00e0-fc01-0144
2. Modify current system MAC address:
[S9303]_h     //access to hide mode
[S9303-hidecmd]set system-mac current ? //set current system MAC
  H-H-H  MAC

Root Cause

Because the test resource limiting, all the switch have only one  MCU main control board, before supply chain delivering, maybe 2 MCU board inserted in the same one switch for test, lead 2 MCU board auto synchronize to same MAC address. MAC address of switch is got from MCU, MAC address clash when the 2 MCU main control board insert to 2 switch.


Pay attention to switch system MAC address uniqueness for the network containing double main control board switch.