topic Re: Fabric Extended Node in Software-Defined Access (SD-Access)

Fabric Extended Node

GRANT3779 — Wed, 26 Apr 2023 06:49:53 GMT

Hi CSC,

If I run a stack of 9300s with roles, CN, BN and EN, essentially FIAB. I want to hang a couple of 3560CX as Extended Nodes. During plug and play and onboarding does DNAC configure these extended nodes with LISP for example or do they act like a trunked switch only with the uplinks carrying the Vlans only? Is the only configured L3 interface the one within the Infra_VN for communication to shared services? Does it use the uplinked edge node as the GW for the networks? I'm assuming I could connect standard end hosts to the extended nodes If required and not just IOT / APs? I'm aware of the Segmentation caveats with extended nodes.

Thanks

Re: Fabric Extended Node

Andrii Oliinyk — Thu, 27 Apr 2023 18:39:00 GMT

During plug and play and onboarding does DNAC configure these extended nodes with LISP for example or do they act like a trunked switch only with the uplinks carrying the Vlans only?

as far as i understand it from manuals EFN works as NEAT switch. no LISP there

Is the only configured L3 interface the one within the Infra_VN for communication to shared services?

yes

Does it use the uplinked edge node as the GW for the networks?

yes . in infra_vn

I'm assuming I could connect standard end hosts to the extended nodes If required and not just IOT / APs?

of course