Chapter 10. MOSPF
Continuing our discussion of multicast routing, this chapter examines a particular multicast routing protocol, the Multicast Extensions to OSPF (MOSPF). MOSPF is an extension of OSPF, allowing IP multicast routing to be introduced into an existing OSPF unicast routing domain.
MOSPF has seen considerable deployment in private internets. When a network is already running OSPF, MOSPF is probably a better choice than the more common DVMRP when introducing a multicast routing capability. Both MOSPF and DVMRP calculate source-based trees. However, unlike MOSPF’s link-state basis, DVMRP uses Distance Vector routing technology and is susceptible to all the normal convergence problems of Distance Vector algorithms (Section 2.3). MOSPF ...
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