Configuring IP Multicasting and Multimedia Services
5-2 117355-A Rev. A
MOSPF Overview
MOSPF is a multicasting extension of the OSPF protocol that allows a router to
forward multicast IP traffic within an OSPF Version 2 AS.
An OSPF environment typically consists of an AS divided into multiple areas
connected by an OSPF backbone. You can configure an OSPF/MOSPF router as a
• Multicasting internal router (IR) that establishes neighbor relationships with
adjacent routers within an area
• Multicasting border router (BR) with interfaces to one or more areas and to
the OSPF backbone
• Multicasting boundary router (ASBR) with one or more interfaces to external
autonomous systems
F
igure 5-1 shows an OSPF/MOSPF AS consisting of two OSPF areas connected
by an OSPF backbone.
Comments to this Manuals