AR integrated with OISM in an EVPN-VXLAN ERB fabric

You can configure AR and OISM together in an EVPN-VXLAN ERB overlay fabric. These devices can serve as AR replicator devices or AR leaf devices.

Here is a summary of integrated AR and OISM support:

• AR replicator devices are lean spine devices in the fabric. The AR replicator function can't be collocated with the OISM border leaf or server leaf role on the same device.
• AR leaf devices can be OISM server leaf or border leaf devices.
• AR replicator devices must be running Junos OS Evolved software that supports OISM (even though the AR replicator devices don't operate in either an OISM server leaf or OISM border leaf role).

When you configure AR devices:

• You configure the EVPN instances using MAC-VRF instances with vlan-based or vlan-aware service types only.
• You must configure the AR replicator devices with the same tenant VRF instances, corresponding IRB interfaces, and member VLANs as the OISM devices.