API Guide

Example - VXLAN BGP EVPN symmetric IRB with
unnumbered BGP peering
The following BGP EVPN example uses a Clos leaf-spine topology with BGP over unnumbered interfaces.
The following explains how the network is configured:
• External BGP (eBGP) over unnumbered interfaces is used to exchange both IPv4 routes and EVPN routes.
• You need not configure IP addresses on links that connect Spine and Leaf switches. BGP Unnumbered peering works without an IP
address configuration on Spine-Leaf links.
• The remote AS is autodiscovered from BGP Open messages.
• All VTEPs perform Symmetric IRB routing. All spine nodes are in one autonomous system and each VTEP in the leaf network belongs
to different autonomous systems. Both Spine Switch 1 and Spine Switch 2 are in AS 101. For leaf nodes, VLT domain 1 is in AS 201;
VLT domain 2 is in AS 202.
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BGP EVPN for VXLAN