EVPN all-active multihoming example

This section shows a configuration example for three 7750 SR, 7450 ESS, or 7950 XRS PEs, all the following assumptions are considered:

The following configuration excerpt applies to a VPLS-1 on PE-1 and PE-2, as well as the corresponding Ethernet-segment and LAG commands.


A:PE1# configure lag 1 
A:PE1>config>lag# info 
----------------------------------------------
        mode access
        encap-type dot1q
        port 1/1/2 
        lacp active administrative-key 1 system-id 00:00:00:00:69:72 
        no shutdown
----------------------------------------------
A:PE1>config>lag# /configure service system bgp-evpn 
A:PE1>config>service>system>bgp-evpn# info 
----------------------------------------------
                route-distinguisher 192.0.2.69:0
                ethernet-segment "ESI-71" create
                    esi 0x01000000007100000001
                    es-activation-timer 10
                    service-carving
                        mode auto
                    exit
                    multi-homing all-active
                    lag 1
                    no shutdown
                exit
----------------------------------------------
A:PE1>config>service>system>bgp-evpn# /configure service vpls 1 
A:PE1>config>service>vpls# info 
----------------------------------------------
            bgp
            exit
            bgp-evpn
                cfm-mac-advertisement
                evi 1
                vxlan
                    shutdown
                exit
                mpls bgp 1
                    ingress-replication-bum-label
                    auto-bind-tunnel
                        resolution any
                    exit
                    no shutdown
                exit
            exit
            stp
                shutdown
            exit
            sap lag-1:1 create
              
            exit
            no shutdown
----------------------------------------------

A:PE2# configure lag 1 
A:PE2>config>lag# info 
----------------------------------------------
        mode access
        encap-type dot1q
        port 1/1/3 
        lacp active administrative-key 1 system-id 00:00:00:00:69:72 
        no shutdown
----------------------------------------------
A:PE2>config>lag# /configure service system bgp-evpn 
A:PE2>config>service>system>bgp-evpn# info 
----------------------------------------------
                route-distinguisher 192.0.2.72:0
                ethernet-segment "ESI-71" create
                    esi 0x01000000007100000001
                    es-activation-timer 10
                    service-carving
                        mode auto
                    exit
                    multi-homing all-active
                    lag 1
                    no shutdown
                exit
----------------------------------------------
A:PE2>config>service>system>bgp-evpn# /configure service vpls 1 
A:PE2>config>service>vpls# info 
----------------------------------------------
            bgp
            exit
            bgp-evpn
                cfm-mac-advertisement
                evi 1
                vxlan
                    shutdown
                exit
                mpls bgp 1
                    ingress-replication-bum-label
                    auto-bind-tunnel
                        resolution any
                    exit
                    no shutdown
                exit
            exit
            stp
                shutdown
            exit
            sap lag-1:1 create
            exit
            no shutdown
----------------------------------------------

The configuration on the remote PE (PE-3), which supports aliasing to PE-1 and PE-2 is shown below. PE-3 does not have any Ethernet-segment configured. It only requires the VPLS-1 configuration and ecmp>1 to perform aliasing.

*A:PE3>config>service>vpls# info 
----------------------------------------------
            bgp
            exit
            bgp-evpn
                cfm-mac-advertisement
                evi 1
                mpls bgp 1
                    ingress-replication-bum-label
                    ecmp 4
                    auto-bind-tunnel
                        resolution any
                    exit
                    no shutdown
                exit
            exit
            stp
                shutdown
            exit
            sap 1/1/1:1 create
            exit
            spoke-sdp 4:13 create
                no shutdown
            exit
            no shutdown
----------------------------------------------