Routing Mechanisms
3) Distance Vector Versus Link State
A) Introduction
- OSPF - Open Shortest First Path Protocol
- OSPF is Preferred IETF IGP
- Myth: OSPF is hard to use
- Evolved from IS-IS
- Link State Protocol
- IS-IS - Intermediate System to Intermediate System Routing
- IS-IS is used by InternetMCI because of better cisco implementation
- IS-IS has multi-protocol spec,
- IS-IS took OSPF changes back into IS-IS
Susan Hares, Merit