which N9K are EOR and TOR?

[gavinhans]

which N9K are EOR and TOR? what's the best way to classifly?

[Christopher Hart]

Hello!

TOR means "Top of Rack", while EOR means "End of Row". All Nexus 9500 switches are considered modular EOR chassis, as they have field-replaceable supervisors, line cards, and fabric modules. All other Nexus 9000 switches are considered TOR chassis.

I hope this helps! Thank you!

-Christopher

[Sergiu.Daniluk]

Hi @gavinhans 

In addition to what @Christopher Hart mentioned, just wanted to say that Nexus 9300 are excellent ToR switch, but they can also be designed to work as EoR or MoR (Middle-of-Row). Nexus 9000 switches support the Nexus 2000 Fabric Extenders (FEX), so you can use FEXs as ToR (usually 2 of them for redundancy).

Stay safe and Rack-and-Roll!

Sergiu