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Routing & Switching · Advanced

Fabric Edge Node

The SD-Access access switch that connects endpoints, authenticates them, registers them with the control plane and provides the anycast gateway.

Definition

Fabric edge nodes sit at the access layer of an SD-Access fabric, where users and endpoints attach. Edge nodes act as LISP xTRs and VXLAN VTEPs, apply SGT policy at egress and host the distributed anycast gateway for each fabric subnet.

Example

A Catalyst 9300 edge node registers a laptop and tags it SGT 4.

Exam tip

The edge node is the equivalent of the access layer; it is where the anycast gateway lives.

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