Showing results for 
Search instead for 
Did you mean: 

Community Helping Community

Issue Configuring ports as FC and FCoE in Nexus 2348UPQ




The Nexus 2348UPQ offers large 32-MB buffers that sustain workload spikes and allows easy migration from 1 Gigabit Ethernet to 10 or native 40 Gigabit Ethernet. It effectively reuses structured cabling with bidirectional optics and provides flexible port personalities for either host or server connectivity.



User trying  to configure FC and FCoE port in nexus 2348UPQ working in fex mode, according to the data shet the nexus 2k support this configuring. In Ethernet mode this works fine, but when configuring in FC and FCoE does it does not work.



Following output is seen using “sh fex” on parent switch.

NX-5K01A# show  fex
  FEX         FEX           FEX              FEX              Fex      
Number    Description      State            Model            Serial    
105        FEX0105                Online   N2K-C2348UPQ-10GE   FOC1849R13M
106        FEX0106                Online   N2K-C2348UPQ-10GE   FOC1849R13A
107        FEX0107                Online   N2K-C2348UPQ-10GE   FOC1849R16R
109        FEX0109                Online   N2K-C2348UPQ-10GE   FOC1849R139
110        FEX0110                Online   N2K-C2348UPQ-10GE   FOC1849R13C


Getting following error when trying to change port to FC.

NX-5K01A(config)# slot 1
NX-5K01A(config-slot)# port 105/1-40-48 ?
% Invalid command at '^' marker.
NX-5K01A(config-slot)# port 105/1-40-48

NX-5K01A(config)# slot 105

NX-5K01A(config-slot)# port 44-48 type fc
ERROR: Invalid slot specified




FC support for the 2348UPQ is not available yet. It is in plan and should be available by the end of this year.


Related Information

Configuring port FC and FCoe in Nexus 2348UPQ

Cisco Employee

The 2348UPQ can be used for FCoE, but not as a native FC port.   The capability to use the ports as native FC will be available later this year.

To be able to bind the VFC to the FEX port, if using EVPC or Adapter FEX, you need to configure FCoE under the FEX, IE...


fex 102


Community Member

Any status on when native FC support is coming to the 2348UPQ?

Cisco Employee

(1)It will be supported if the upstream switch is a Nexus 5600.

(2)The version of firmware that supports this is 7.3(0)N1(1) or above, which is not yet available.

No update on when this will be available.

Best regards,


Hello, according to the documentation this feature is available. "Cisco Nexus 2348UPQ FEX ASIC supports native FC ports. This feature was introduced in 7.3(0)N1(1)". Best Regards. Paulo Rio
CreatePlease to create content
Content for Community-Ad
FusionCharts will render here