Multihoming in a BGP EVPN VXLAN Fabric Configuration Guide, Cisco IOS XE 26.x.x and Later

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Guidelines for DAG bridged overlay networks

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Overview

Guidelines to follow when planning DAG bridged overlay networks.

Follow these guidelines when planning for DAG bridged overlay networks.

  • Extended bridge-domain boundaries build larger Layer 2 flood domains.

  • The DAG bridge mode is suggested for the deployment of selective VLANs or subnets based on technical requirements, such as non-IP and silent hosts.

Refer to the downstream Layer 2 network access device product datasheet to determine the MAC address scale numbers.