Cisco Nexus 5672 eVPC Configuration

[Allan Sanchez]

Hello.

I am in the process of replacing a Cisco Catalyst 4506 with a Nexus Solution. We purchased 2 Cisco Nexus 5672UP and are running eVPC with 4 Cisco N2k's as FEX.

After configuration of eVPC has successfully formed between the two Nexus 5K's. All FEX are connected.

I am configuring layer 2 and layer 3 port channels. With the 4506, I could configure everything on the single switch but with two Cisco N5k's configuration is unclear. Do I mirror all configurations on both switches or do I simple split them? 

[Reza Sharifi]

Hi Allan,

If all your devices (FEX, 4500, etc..) are connected to both Nexus 5672 switches, the configuration has to be identical on both switches.

HTH

[Allan Sanchez]

Thank You.

Follow up question: Will I have an issue if I have the same SVI configured on both N5ks? How will host connected to either N2k FEX be affected?

[Reza Sharifi]

That should not be an issue since each SVI will have a different IP address, but the common way to do this is with HSRP. You can run HSRP version 2 with SVIs on both switches and a virtual IP address.

http://www.cisco.com/c/en/us/support/docs/switches/nexus-7000-series-switches/113002-nexus-hsrp-00.html

HTH