The Extreme device supports the VRF reachability service. Reachability determines which VRF contains the routing information needed to reach the application servers. For example, when you configure an SSH server, you can configure the VRF information for the VRF context to resolve the SSH server route.
VRF reachability indicates the details of the VRF for servicing requests from the clients. It also indicates the clients specifying the VRF for reaching a source to ensure that the management packets are serviced or routed in a server VRF domain.
These two types of reachability services are also referred to as device-initiated and server-based services.