2348TQ-10G-E

cn7369 · ‎04-20-2017

Hello,

I'm trying to get some 2348TQ-10G-E fex's online but they keep going from CONNECTED to OFFLINE. The links are two 40G, one each to a 5672 switch. I have a pair of 2248 fex's also connected (via 10G to each 5672) and they work perfectly. The Nexus switch is running 7.1(4)N1(1). the config for each 5672 for one of the problem fex's follows:

fex 101

pinning max-links 1

description "EH HA Server Farm 1"

interface port-channel11

description EH HA Server Farm FEX101

switchport mode fex fabric

fex associate 101

vpc 11

interface ethernet2/1

description EH HA Server Farm FEX101

switchport mode fex-fabric

fex associate 101

channel-group 11

Am I missing something?

-Chris Noyes

Georg Pauwen · ‎04-20-2017

Hello Chris,

you did it by the book. The only thing Cisco recommends is to use the fabric extender association only on the port channel and not on the physical interfaces. So you might want to remove 'fex associate 101' from Ethernet2/1.

What is the configuration of the other side of the port channel ?

cn7369 · ‎04-20-2017

Same config on both switches. I only added the "fex associate" command to the port channel but the switch adds it automatically to the physical port for some reason.

This problem is driving me crazy.

Georg Pauwen · ‎04-20-2017

The only thing I could find is this field notice, but you seem to be running the NX-OS version that contains the fix:

http://www.cisco.com/c/en/us/support/docs/field-notices/639/fn63977.html

What is the output of:

show int ethernet2/1 - x brief

where 'x' is the end of the range of interfaces in the port channel.

cn7369 · ‎04-21-2017

cf-ha-obb4-A# sh int eth2/1 brief

--------------------------------------------------------------------------------

Ethernet VLAN Type Mode Status Reason Speed Port

Interface Ch #

--------------------------------------------------------------------------------

Eth2/1 1 eth fabric up none 40G(D) 11

cf-ha-obb4-A#