vPC and BGP

[torstensson]

Hi all! 

I have a short, almost yes or no, question regarding datacenter routing. Is it best practice/recommended to run iBGP between two devices that are already connected through vPC. In this case two Top-of-Rack Nexus 9300-series. 

Br

Lars

[balaji.bandi]

TOP Rack is just Layer 2, so Personally NO.

[torstensson]

Is it even supported or just not recommended?

[balaji.bandi]

it is supported depends on the model and requirement, TOR we expect to be just Layer 2, (personally i will not recomend)

but if the design demands, you need to change the requirement, not sure why you need BGP (if that is end of network ? ) there is no network to anounce or do Traffic Engineering there ?

[torstensson]

The reason for the BGP part is that the bottom switches are supposed to be connected to NSX-T and they "require" BGP peering to work. But this seems way to complicated to be needed

I've attached the suggested design.

[balaji.bandi · Accepted solution]

is the proposed diagram or exiting arrangments ? ( as i take it suggested design) - thinking now TOR is just Layer 2

if the device need peering with BGP, its not necessary neet to run the BGP process on TOR, you can do BGP Peer with Parent Device NExus 7K ? i do not see any Limitation here ? ( do you or missing something here )