5/21/2020

Arista EVPN VXLAN Configuration Example (2c) - Single-homing, L2 EVPN, Vlan-aware vs Vlan-based

According to draft-krattiger-evpn-modes-interop-0, the vlan-based should interop with vlan-aware bundled MAC VRF. But I did a quick test on 4.24.0F EOS, it doesn't work obviously



And the problem is that, flood set is not correct.

snp261#sh l2rib input bgp floodset
L2 RIB EVPN Input flood set:
   Vlan              Address       Type            Destination
---------- -------------------- ---------- -------------------
    601       0000.0000.0000        All    VTEP 160.255.255.20
    602       0000.0000.0000        All    VTEP 160.255.255.20
    611       0000.0000.0000        All    VTEP 160.255.255.20
    612       0000.0000.0000        All    VTEP 160.255.255.20
<<<< there is no VTEP flood set for VLAN 621 and 622

Even the "show bgp evpn route-type imet <prefix>" shows correct RT values, the but import doesn't work here. 

wa464#sh bgp evpn route-type imet rd 160.255.255.10:621 detail
BGP routing table information for VRF default
Router identifier 160.255.255.20, local AS number 65162
BGP routing table entry for imet 160.255.255.10, Route Distinguisher: 160.255.255.10:621
 Paths: 1 available
  Local
    160.255.255.10 from 160.255.255.1 (180.255.255.1)
      Origin IGP, metric -, localpref 100, weight 0, valid, internal, best
      Originator: 160.255.255.10, Cluster list: 180.255.255.1
      Extended Community: Route-Target-AS:65100:620 TunnelEncap:tunnelTypeVxlan
      VNI: 621
      PMSI Tunnel: Ingress Replication, MPLS Label: 621, Leaf Information Required: false, Tunnel ID: 160.255.255.10

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