Steve Casner. Second ietf internet audiocast. Internet Society News, 1(3):23, 1992.  Home/Search   Document Not in Database   Summary   Related Articles   Check

.... When asymmetric paths exist RPF will provide reverse shortest paths 3 , or distributed link state protocols such as MOSPF can be used to compute shortest path trees[Moy92] Although not offering minimal cost paths, protocols based on shortest path trees have been adopted most widely [Fre93] Cas92] This is due to the fact that when compared with multiple unicast transmissions, SPT based multicast already provides substantial savings in link cost, and it helps to avoid fan out problems at sources. For a (virtual) network such as the MBONE [Cas92] with relatively few globally active ....

....trees have been adopted most widely [Fre93] Cas92] This is due to the fact that when compared with multiple unicast transmissions, SPT based multicast already provides substantial savings in link cost, and it helps to avoid fan out problems at sources. For a (virtual) network such as the MBONE [Cas92] with relatively few globally active multicast groups, SPT s are satisfactory. The bandwidth is used for real time traffic and the bw resource is frequently scarce relative to demand; therefore delay and traffic concentration are of concern. Moreover, the network is not rich in connectivity and ....

Steve Casner. Second ietf internet audiocast. Internet Society News, 1(3):23, 1992.

.... 7, 8] When asymmetric paths exist RPF will provide reverse shortest paths 3 , or distributed link state protocols such as MOSPF can be used to compute shortest path trees[9] Although not offering minimal cost paths, protocols based on shortest path trees have been adopted most widely [10, 11]. This is due to the fact that when compared with multiple unicast transmissions, SPT based multicast already provides substantial savings in link cost, and it helps to avoid fan out problems at sources. For a (virtual) network such as the MBONE [11] with relatively few globally active multicast ....

....path trees have been adopted most widely [10, 11] This is due to the fact that when compared with multiple unicast transmissions, SPT based multicast already provides substantial savings in link cost, and it helps to avoid fan out problems at sources. For a (virtual) network such as the MBONE [11] with relatively few globally active multicast groups, SPT s are satisfactory. This is because the network is not rich in connectivity and therefore different types of trees would be mapped to the same routes anyway. Perhaps most important is that to date the control aspect of protocols, instead ....

Steve Casner. Second ietf internet audiocast. Internet Society News, 1(3):23, 1992.

....of DVMRP are its low delay characteristics (it performs optimally with respect to this metric, since each packet follows the shortest path from the source to each destination) and its relatively simple implementation. It is the scheme currently used for Internet multicasting over the MBONE [2]. However, DVMRP requires that each router store information for each (source, group) pair; this information determines whether a packet from a particular source is forwarded on a particular link. Moreover, in DVMRP, neighboring routers must periodically take explicit action in order to turn off ....

Steve Casner. Second ietf internet audiocast. In Internet Society News, 1992.

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Steve Casner. Second ietf internet audiocast. Internet Society News, 1(3):23, 1992.

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