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EVPN VXLAN DCI stitching not working in Lab with vMX ? 23.4.

  • 1.  EVPN VXLAN DCI stitching not working in Lab with vMX ? 23.4.

    Posted 01-15-2025 06:53

    Using  vJunos-Router, 23.4 , I cannot get DCI Stitching working , seem like the packets will not go from VTEP <> VTEP, I've setup  a bridged overlay between DCs 
    The control plane looks good, and proxy arp is working. A device in one DC can ARP and get IP and MAC for the other DC; however, packets just seem to get blackholed at the GW device  as verified with Wireshark. 

    Also been referring to Day One: Seamless EVPN-VXLAN Tunnel Stitching for DC and DCI Network Overlay

    [edit routing-instances]
root@dc2-gw1# show                           
macvrf-v100-1 {
    instance-type mac-vrf;
    protocols {
        evpn {
            encapsulation vxlan;
            default-gateway no-gateway-community;
            extended-vni-list 10100;
            interconnect {
                vrf-target target:1:2;
                route-distinguisher 192.0.2.24:12;
                esi {
                    00:00:00:00:00:00:00:22:22:22;
                    all-active;
                }
                interconnected-vni-list 10100;
                encapsulation vxlan;
            }
        }
    }
    vtep-source-interface lo0.0;
    bridge-domains {
        bd100 {
            vlan-id 100;
            vxlan {                     
                vni 10100;
            }
        }
    }
    service-type vlan-aware;
    interface ge-0/0/5.0;
    route-distinguisher 192.0.2.24:100;
    vrf-target target:2:2;
}

[edit routing-instances]


    ------------------------------
    JNCIE-ENT 907
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  • 2.  RE: EVPN VXLAN DCI stitching not working in Lab with vMX ? 23.4.

    Posted 04-05-2025 10:51
    Edited by RYOTA KOSAKA 04-05-2025 10:54

    Hi Simon Bingham

    Your config looks correct, but there is one unnecessary line.

    Try to do this.

    --

    delete routing-instances macvrf-v100-1 protocols evpn interconnect encapsulation vxlan

    --

    DCI sometimes doesn't work, but rebooting GW sometimes fixes it, so it's worth trying.



    ------------------------------
    RYOTA KOSAKA
    ------------------------------

    Original Message