Solved: Nexus 7000 with fex and server with 2 nics

fsebera · ‎02-10-2016

Anyone know if this is a supported setup?

Nexus 7010 with dual supervisors and 2 line cards (N7K-M132XP-12L) that support FEX. We want to connect our dual NIC server to 2 different FEX model 2248TP. Each FEX will be connected to a different card in the same Nexus 7010 but configured as a vPC. The server NICs will be setup in a Port-Channel to transmit/receive on both interfaces (active/active).

Thank you

Frank

Masoud Pourshabanian · ‎02-10-2016

Hello,

The first part is fine. You can team two NICs connected to different FEXs; however, you do not need to configure a VPC when you connect a FEX to only one Nexus. You need to configure a normal port channel. VPC is configured when you connect a switch to two peer Nexus switches .Why you do not connect each FEX to different nexus (7010-1 and 7010-2)?

Masoud

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Masoud Pourshabanian · ‎02-10-2016

Hello,

The first part is fine. You can team two NICs connected to different FEXs; however, you do not need to configure a VPC when you connect a FEX to only one Nexus. You need to configure a normal port channel. VPC is configured when you connect a switch to two peer Nexus switches .Why you do not connect each FEX to different nexus (7010-1 and 7010-2)?

Masoud

fsebera · ‎02-12-2016

Hi Masoud,

You are correct - Connecting to a single Nexus does not allow the creation of a vPC (my bad). You stated it well and correct - It's a port-channel.

Our N7Ks do not support all the requirements -at this point- to support dual-homing FEXs

The URL for dual-homing FEX to N7K just in case anyone needs it.

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus2000/sw/configuration/guide/rel_6_1/b_Cisco_Nexus_2000_Series_NX-OS_Fabric_Extender_Software_Configuration_Guide_Release_6-x.pdf#page33

Thank you for your assistance

Frank

Masoud Pourshabanian · ‎02-13-2016

You are welcome. Thanks for sharing the URL. It was informative.

Masoud