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Skybgp
Beginner

why cdp neighbor looks like abnormal?

Hello, Switch100 is two 9300 stack, and SW10 and SW20 single switch 9300. Three switches connect each other with two cables. show cdp neighbor shows the connection like below, which looks like unreasonable. Did I miss some something in these checks? Anyone can explain it?  

 

3.PNG

 

 

 

 

6 REPLIES 6
Sergiu.Daniluk
VIP Engager

Can you share the "show cdp neigh details" from all switches?

 

Cheers,

Sergiu

Thanks for your reply. Something was wrong with the diagram. Now i updated it. All three switches are in same subnet. Can you take at it again?

Sergiu.Daniluk
VIP Engager

Can you share the "show cdp neigh details" from all switches?

its production network. It would be much better if i can share specific info here. 

Hi @weijun.duan 

If you change the SN numbers and device names with something else, it should be fine. But make sure you are consistent in the change.

 

Cheers,

Sergiu

weijun.duan
Beginner

show cdp nei

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