Configuring EVPN VPWS over SRv6 with Traffic Engineering

Starting in Junos OS Evolved 24.2R1, the ACX7000 family of routers support configuring EVPN VPWS over SRv6TE tunnels without fallback support. While EVPN services do not support the fallback switchover of routes, you can configure segment routing policies to support a backup secondary path. If the primary path becomes blocked, the device will use the secondary path as backup.

In Figure 1, we have a topology with two possible paths from CE1 to CE4. The basic steps for configuring EVPN VPWS over SRv6 with traffic engineering on the ingress device (PE1) is as follow.

1. Configure the node locator SID within the IS-IS protocol.

2. Configure EVPN-VPWS services.

3. Configure support for micro-SID and SRv6.

4. Define the transport class at the ingress or egress node. For this example, we define a gold transport class and assign community value.

5. Configure import or export policies to route traffic. For this example, we use an export policy.

6. Configure source path route to the remote device and the hops for the primary and secondary paths.

   Note:

   Use the loopback address of the remote device for the tunnel endpoint.