February 1998
Intermediate to advanced
368 pages
10h 7m
English
Content preview from OSPF: Anatomy of an Internet Routing ProtocolBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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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