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Evpn vxlan mp-bgp : path is invalid(no RMAC)

Poc-Cisco.png

 

In a two nexus 93180YC-EX (version 7.0(3)I7(3)) topology, configured with vxlan and evpn, I'm unable to get two hosts which are on two different vlan to communicate.  L2 communication works but not l3

 

I have this error :

nexus2# sh bgp vrf tenant-1 l2vpn evpn 10.3.26.4
BGP routing table information for VRF default, address family L2VPN EVPN
Route Distinguisher: 10.0.0.200:32961
BGP routing table entry for [2]:[0]:[0]:[48]:[0050.56bf.1718]:[32]:[10.3.26.4]/248, version 5069

Paths: (1 available, best #0)
Flags: (0x000202) (high32 00000000) on xmit-list, is not in l2rib/evpn, is not in HW

  Path type: internal, path is invalid(no RMAC), no labeled nexthop
  AS-Path: NONE, path sourced internal to AS
    10.0.0.200 (metric 41) from 10.0.0.200 (10.0.0.200)
      Origin IGP, MED not set, localpref 100, weight 0
      Received label 10194 100194

 

What is the right way to configure IRB routing in a fabric ?

 

Thanks a lot

 

Nicolas
      Extcommunity: RT:65000:10194 RT:65000:100194 ENCAP:8

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3 REPLIES 3

Re: Evpn vxlan mp-bgp : path is invalid(no RMAC)

just miss vlan for the VRF

vlan 101
vn-segment 100194

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Re: Evpn vxlan mp-bgp : path is invalid(no RMAC)

Hello Nicholas,

in what device have you applied this change on Nexus2 ?

 

>> vlan 101
vn-segment 100194

 

it is appplied to L2 brodacast domain vlan 101 not to SVI interface Vlan 101 . is it correct ?

 

Best Regards

Giuseppe

 

Re: Evpn vxlan mp-bgp : path is invalid(no RMAC)

Hi Giuseppe,

vlan dedicated to the VRF (vlan 110) need to be added on both nexus.

Without vlan 101, the VRF Tenant-1 don't do his routing job

 

Yes, L2 broadcast domain vlan

 

Regard,

Nicolas

 

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