Anyone struggled with the same problem:
According the specs the F3 line card should support FEX 2000 (in our case: NX2248PQ and NX2238TP)
While configuring an interface with "SWITCH MODE FEX-FABRIC", the system complains with:
DC1(config-if)# switchport mode fex-fabric
ERROR: Ethernet4/10: Configuration does not match the port capability.
Seems like the only interface on the F3 linecard that is able to support FEX fabric, is the BREAK-OUTed interface (4x 10GE) on a F3 interface.
Kind regards, Wim
You mean 2232?
That is correct. You need the Break-out cable to go from 40 to 10. Neither 2248 or 2232 support 40Gig
I use Panduit cable and they are pretty good:
thanks for your feedback.
concerning fex I meant 2248TP, those are indeed connected using breakout cable from: N7K QSFP 40GE -> FEX 2248TP 4x 10GE.
But how to connect a 2248PQ, which has 4x 40GE as uplink to the N7K ? To do so, I need 4x 40GE interfaces at N7k running in FEX FABRIC switch mode.
The N7K is always complaining about port capability when I try to put an interface of the F3 linecard in fex mode.
The N7K is running 6.2(8)
Thanks for clarifying, now I understand the issue here. I have never worked with the 40Gig interfaces for the 7000 series (only 6000 series)
Can you try adding this command before the FEX fabric command and test again? If not, I would open a ticket with Cisco to resolve this.