Nexus 5672 & Fex 2348

[opnineopnine]

Hi all,

I have to configure my 5672 with the fex 2348 via QSFP , I did the normal configuration but the fex is not starting up.

Is there any special configuration when I use the QSFP?

Thanks.

611

[cn7369]

Did you ever get this working?  I have the same issue and am on the verge of submitting a ticket with TAC.

[Austin Sabio]

Can you please post your uplinks config?

It should look like something like this:

feature fex

interface Po111
 description UPLINK FEX-01
 vpc 111
 switchport mode fex-fabric
 fex associate 111
 no shut

interface Ethernet1/111
 description UPLINK FEX-01
 switchport mode fex-fabric
 fex associate 111
 channel-group 111
 no shut

interface Ethernet1/112
 description UPLINK FEX-01
 switchport mode fex-fabric
 fex associate 111
 channel-group 111
 no shut

!to verify 
#show fex 111 detail

If your configs are good then make sure you are using supported twinax cables or LC breakout cables. 

https://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/datasheet-c78-730760.html

I hope this helps. Good luck!

- Austin

[cn7369]

I opened a TAC case and discovered we had the 2348TQ-E FEX modules (not the 2348TQ), which require 7.3 software to be recognized.  Once I upgraded (and power cycled the FEX's) they came online.

[Austin Sabio]

Excellent. Thanks for sharing your solution. I just checked that apparently 'Cisco NX-OS Release 7.3(0)N1(1) for Cisco Nexus 5500 and 5600 platforms and 6000 Series' is the minimum software requirement. 

Table 2.       Cisco Nexus 2300 Platform 10 Gigabit Ethernet Fabric Extender Product Specifications 

https://www.cisco.com/c/en/us/products/collateral/switches/nexus-2000-series-fabric-extenders/datasheet-c78-731663.html

-Austin 

[JALALUDDEEN A A]

IS VPC command is really required in port-channel configuration ?

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