Configuring IPv4 OSPFv2 Multiple Instances


Multiple OSPF Instances let you separate OSPF into multiple OSPF domains.

Each instance contains a fully independent OSPF database, and routes from one domain are not automatically advertised to another domain.

You can manually configure route maps to filter and redistribute routes from one domain into another domain.

The redistributed routes show as OSPF external routes in the routing table of the other domain.

If two different OSPF instances try to install the same route with equal cost, the route with the lower next hop IP address is preferred.

If the routes have different costs, the route with the lower cost is selected.

Separate OSPF Instances do not share link state with one another, and will not pass routes among themselves unless explicitly configured to do so using either Route Redistribution or Routemaps.

Adding a New IPv4 OSPFv2 Instance

Note - To add more instances, the default instance must have at least one OSPF interface configured and running.

Deleting an Existing IPv4 OSPFv2 Instance

Restarting an IPv4 OSPFv2 Instance

Restarting an IPv4 OSPFv2 Instance lets you clear OSPF database and restart OSPF adjacency for an instance without restarting the Gaia RouteD daemon.