03-14-2018 07:46 PM - edited 03-08-2019 02:15 PM
Hi Experts ,
we have network like , 2 x N5k is connected to 7k , there was module 1 was faulty module 1 faulty on N7k and after replace the module we are facing port down issue .
Nexus 5k error logs is indicating ports down due to UDLD empty echo but on N7k side simply link failure error , see below .
ON N5k
2018 Mar 14 13:34:41 RNS-ASB-DC1-5NX1 %ETHPORT-2-IF_DOWN_ERROR_DISABLED: Interface Ethernet1/3 is down (Error disabled. Reason:UDLD empty echo)
On N7k ,
2018 Mar 12 18:25:19 RNS-ASB-DC1-7NX1 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel10: first operational port changed from Ethernet2/2 to Ethernet2/1
2018 Mar 12 18:25:19 RNS-ASB-DC1-7NX1 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel10: Ethernet2/2 is down
2018 Mar 12 18:25:19 RNS-ASB-DC1-7NX1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet2/2 is down (Link failure)
2018 Mar 12 18:25:22 RNS-ASB-DC1-7NX1 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel10: first operational port changed from Ethernet2/1 to none
2018 Mar 12 18:25:22 RNS-ASB-DC1-7NX1 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel10: Ethernet2/1 is down
2018 Mar 12 18:25:22 RNS-ASB-DC1-7NX1 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel10 is down (No operational members)
2018 Mar 12 18:25:22 RNS-ASB-DC1-7NX1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet2/1 is down (Link failure)
2018 Mar 12 18:25:22 RNS-ASB-DC1-7NX1 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel10 is down (No operational members)
FYI : we have tried to shut no shut port , reset ports and cable test but no luck yet ,
i hope ,will get solution .
03-20-2018 09:32 PM
Hi Rajesh,
Just do the basic level troubleshooting first , check the ports as well , if it still doesn't work there might be a hardware issue or possibilities that there might be a bug .
There are certain commands in the below troubleshooting guides provided , run them on Nexus 7k and check the issue
03-25-2018 10:15 PM
Hey hi ,
Thanks for your reply , we performed all troubleshooting level and now waiting for check on hardware and software side , i am strongly suspecting issue with software , like bug behavior .
will update once i have solution for issue and again thanks for your help
10-04-2018 07:14 AM
Any solution on this issue yet? Was it a bug? Was it hardware? I am facing this issue as well.
10-04-2018 10:00 AM
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