MBONE: Multicasting Tomorrow's Internet
The advantages to linking DVMRP with MOSPF are: fewer configured tunnels, and less multicast traffic on the links inside the MOSPF domain. There are also a couple potential drawbacks: increasing the size of DVMRP routing messages, and increasing the number of external routes in the OSPF systems. However, it should be possible to alleviated these drawbacks by configuring area address ranges and by judicious use of MOSPF default routing.
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