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Two MAC addresses on acces port of switch

Created: Mar 19, 2019 13:37:32Latest reply: Apr 11, 2019 15:09:17 395 3 0 0
  Rewarded HiCoins: 0 (problem resolved)

Hello!


We hawe two switches (one of them is 5720S-LI) connected by access (untagged) ports. Network administrator of another switch (not Huawei) told me that he see two mac addresses from my switch. One of these two mac adresses is device mac address of my switch, and it`s ok. Another one MAC address is Huawei MAC address too, but i don`t know why it own by my switch? What kind of protocol use it? And can i disable this protocol?

I connected my laptop to interface of my switch and capture some traffic

On the screenshot you can see 50:1d:93:4b:f1:a0 - is device mac addres of my switch, and 00:e0:fc09:bc:f9 - is another one MAC address whose origin is puzzle for me.

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chenhui
Admin Created Mar 20, 2019 06:45:45 Helpful(1) Helpful(1)

@sergey_popov hi bro, please check if you have enabled the ndp on the port. if yes, you can diable them by undo ndp enable, this will silence the interface to send 0x88a7, before undo ndp, please make sure this action wouldn't affect the service.
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chenhui
chenhui Admin Created Mar 20, 2019 06:30:10 Helpful(0) Helpful(0)

protocol 0x88a7 indicates the HGMP,
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chenhui
chenhui Admin Created Mar 20, 2019 06:45:45 Helpful(1) Helpful(1)

@sergey_popov hi bro, please check if you have enabled the ndp on the port. if yes, you can diable them by undo ndp enable, this will silence the interface to send 0x88a7, before undo ndp, please make sure this action wouldn't affect the service.
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sergey_popov
sergey_popov Created Apr 11, 2019 15:09:17 Helpful(0) Helpful(0)

Posted by chenhui at 2019-03-20 06:45 @sergey_popov hi bro, please check if you have enabled the ndp on the port. if yes, you can diable t ...
You were right, NDP was enabled. Thx a lot!
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