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LAG from N7k to 5508 getting Duplex Mismatch errors

h.kaemmerling
Beginner
Beginner

‎06-03-2012 04:02 PM - edited ‎07-03-2021 10:14 PM

Has anyone seen Duplex MisMatch errors on a N7k with a LAG going to the 5508 WLC?  WLC code is 7.0.203.0.

I found a BUG that is private to Cisco ( CSCth11041 ) that looks like it, but I want to make sure.

Any help would be appreciated.

Regards,

Hunter

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6 Replies 6

Amjad Abdullah
Engager
Engager

‎06-04-2012 11:22 PM

Do you have your N7K ports configured as 1000 Mbps Full Duplex?

How did you find the bug if it is private?

I think only TAC can confirm you about the bug if it is private!

Thanks.

Amjad

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safwan riyazudeen
Beginner
Beginner
In response to Amjad Abdullah

‎11-22-2013 01:21 AM

Hunter I have exactly the same problem...

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Saurav Lodh
Rising star
Rising star

‎11-22-2013 04:22 AM

A duplex mismatch is a situation where the switch  operates at full duplex and the connected device operates at half duplex  or vice versa. The results of a duplex mismatch are extremely slow  performance, intermittent connectivity, and loss of connection. Other  possible causes of data link errors at full duplex are bad cables,  faulty switch ports, or client software or hardware issues.

Resolution : Since for 5500s WLC , data rate is fixed 1k full duplex, please check the switch side data rate , make sure it is set to 1000 Mbps Full Duplex.