OSPFv2 Area Filter by Prefix-List

Written by David Blease
Posted on November 12, 2019
Updated on December 19, 2023
8483 Views

In an OSPFv2 Area Border Router (ABR), area filters may be used to prevent specific prefixes from being announced by an area as Type 3 Summary LSAs or routes to AS boundary routers as Type-4 ASBR summary LSAs.

OSPF and OSPFv3 Non Stop Forwarding

Written by David Blease
Posted on February 8, 2017
Updated on May 17, 2018
9581 Views

The OSPF Non Stop Forwarding (NSF) feature adds support for Graceful OSPF Restart (IETF RFC 3623) and Graceful OSPFv3