01-19-2018 07:05 AM - edited 03-08-2019 01:29 PM
Hi all,
I have connected 2 Nexus Fex 2348UPQ (dual homed) to 2 Nexus 56128 in VPC topology. Following are the Configs:
N56128(1)# fex 151
pinning max-links 1
description "FEX0151"
fex 152
pinning max-links 1
description "FEX0152"
slot 151
provision model N2K-C2348UPQ
slot 152
provision model N2K-C2348UPQ
interface port-channel151
switchport mode fex-fabric
fex associate 151
spanning-tree port type edge trunk
vpc 151
interface port-channel152
switchport mode fex-fabric
fex associate 152
spanning-tree port type edge trunk
vpc 152
interface Ethernet1/51
description FEX [151]
switchport mode fex-fabric
fex associate 151
channel-group 151
interface Ethernet1/52
description FEX [152]
switchport mode fex-fabric
fex associate 152
channel-group 152.
when i do Show Fex command, it shows nothing. And when I do show interface status, ports 1/51 and 1/52 shows not connected. Any suggestion please?. Thanks in advance.
01-19-2018 01:03 PM
First, delete this line: 'spanning-tree port type edge trunk' on the port channels.
Then, check the connections, run shut and no shut on the physical interfaces.
Are FEXs on?
01-20-2018 04:43 AM
Yes, Fexes are ON. I tried what you have mentioned, but no results.
01-19-2018 01:31 PM
Is vPC configured correctly?
What is the output of "sh vpc det"
Also, what is the output of "sh run vpc"?
HTH
01-20-2018 05:10 AM
Just wondering if you are using the QSFP cable to connect, if so make sure that you have the cables in correctly. I have seen something similar where the one end was not inserted correctly in the FEX.
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