In order to reduce the number of entries in the routing tables, IP addresses can be grouped by address aggregation at the borders transitioning from the backbone area to non-backbone areas. The corresponding subnet is advertised as a summary LSA.
- OSPF instance
- Contains the name of the OSPF instance.
- Area ID
- Identifies the area by means of an IPv4 address.Note: If this instance is to be the backbone area, the value to be used is 0.0.0.0.
- IP address
- Contains the IPv4 address.
- IP netmask
- Contains the IPv4 subnet mask.
- Advertise
- Enables or disables the advertisement of this address aggregation.