QuestionQ30

Campus Fabric Architecture

You are planning to deploy a new campus fabric. This campus will carry a significant amount of east-west traffic. All access switches will operate only at Layer 2.

In this scenario, which architecture should you deploy?

  • A campus fabric IP Clos
  • B campus fabric core-distribution with centrally-routed bridging (CRB)
  • C campus fabric core-distribution with edge-routed bridging (ERB)
  • D campus EVPN multihoming
Explanation

Campus fabric core-distribution with edge-routed bridging (ERB) keeps access switches at Layer 2 while locating the Layer 3 boundary and default gateway at the distribution layer. ERB is targeted for east-west traffic patterns, allowing traffic to be routed close to the access network rather than centrally at the core.

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