C.S. Wu, S.W. Lee and Y.T. Hou, "Backup VP Preplanning Strategies for Survivable Multicast ATM Networks," in Proceedings of IEEE International Conference on Communications 1997 (ICC'97), Montreal, Canada, pp. 267-271.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....link or This work was supported in part by grants from NASA and NSF. node failure is detected on the primary route. The problem is more challenging for multicast communications since a network failure will affect a number of multicast group members. A couple of schemes were previously studied[8] [9]. One is link protection in which a backup path is setup for each link in the multicast tree. Another one is path protection in which a vertex disjoint backup path from the source to each destination is setup. A variant of link protection is also proposed in [8] In these pre planned schemes, ....

....be different on different directions) The cost of a multicast tree is the summation of the costs of all links. In this paper, we assume one to many or core based multicast in which a multicast delivery tree is rooted at the source or core. Most existing work on pre planned restoration [4] 8] [9] has assumed single failure model in which there is only a single link or node that fails at a time. The same assumption applies in this paper. B. Failure Restoration in Unicast Communication SONET defines a mechanism called Automatic Protection Switching (APS) to detect failure and switch ....

[Article contains additional citation context not shown here]

C. Wu, W. Lee, and Y. Hou, "Back-up VP preplanning strategies for survivable multicast ATM networks", in Proc. IEEE ICC'97, vol.1, pp.267271, June 1997.

....action only from the receiving node, but back up capacity is not shared among connections. In the second case, event triggered path restoration, the back up path is only activated when a failure occurs on a link or node along the primary path. Backup capacity can be shared among di erent paths ( WLH97] thus improving capacity utilization for back up channels and allowing for judicious planning ( BPG92, HBU95, GBV91, HB94, GKS96, SNH90, VGM93, Fri97, NHS97] However, recovery involves coordination between the sender and receiver after a failure event and action from nodes along the back up ....

C.S. Wu, S.W. Lee, and Y.T. Hou. Backup vp preplanning strategies for survivable multicast ATM. In Proceedings IEEE GLOBECOM, pages 267-271, 1997.

....than use rerouting, which is based at the source [14] or at intermediate nodes [38] we create two trees such that one is a backup to another. Section II discusses the applicability of different redundant tree approaches. For ATM, several preplanned tree protection strategies are presented in [73]. E. Topological Requirements The network topology, i.e. the physical layout of nodes and links, must be such that recovery is physically possible. Topological requirements are important because they determine whether a mechanism may be used in existing networks and because they may impact ....

C.-S. Wu, S.-W. Lee, and Y.-T. Hou, "Backup VP preplanning strategies for survivable multicast ATM networks," in Proc. ICC '97, vol. 1, pp. 267--271.

....backup paths. In this work, we consider the end to end path restoration that has been widely cited to be more advantageous than a link restoration scheme [2] 10] 16] In order to increase the bandwidth utilization, the backup capacity is allowed to be shared among independent paths [17] [22]. By using the terminology in references [9] 17] the backup sharing scheme, VP SH (Virtual Path Self Healing) can always reach better capacity usage than no sharing case [17] 22] Although the no sharing scheme, VP APS (Virtual Path Automatic Protection Switch) has lower complexity and ....

.... to increase the bandwidth utilization, the backup capacity is allowed to be shared among independent paths [17] 22] By using the terminology in references [9] 17] the backup sharing scheme, VP SH (Virtual Path Self Healing) can always reach better capacity usage than no sharing case [17] [22]. Although the no sharing scheme, VP APS (Virtual Path Automatic Protection Switch) has lower complexity and technical di#culties than the VP SH scheme. There are several publications about the survivable VP planning problem in ATM networks. In [8] an algorithm for optimal spare capacity ....

C.-S. Wu, S.-W. Lee, and Y.-T. Ho, "Backup VP preplanning strategies for survivable multicast ATM networks," Proc. IEEE ICC, 1997.

....have been proposed. 13, 8] While network survivability has focused on point topoint communications, there has been very little work in applying the concepts of ATM point to point survivability to ATM multipoint communications. To my knowledge, there has been only one academic paper on this topic. [14] The 1 a note on terminology: Multipoint communications will be used to describe any type of communication service within a group of multiple participants (it is equivalent to group communication) Multicast will be used to describe the underlying point to multipoint directional transmission ....

C.S. Wu, S.W. Lee and Y.T. Hou, "Backup VP Preplanning Strategies for Survivable Multicast ATM Networks," in Proceedings of IEEE International Conference on Communications 1997 (ICC'97), Montreal, Canada, pp. 267-271.

No context found.

C.S. Wu, S.W. Lee and Y.T. Hou, "Backup VP Preplanning Strategies for Survivable Multicast ATM Networks," in Proceedings of IEEE International Conference on Communications 1997 (ICC'97), Montreal, Canada, pp. 267-271.

No context found.

C. Wu, W. Lee, and Y. Hou. Back-up VP preplanning strategies for survivable multicast ATM networks. In Proceedings of IEEE ICC'97, pages 267--271, June 1997. 10

No context found.

C. Wu, W. Lee, and Y. Hou. Back-up VP preplanning strategies for survivable multicast ATM networks. In Proceedings of IEEE ICC'97, pages 267--271, June 1997. 10

No context found.

C.S. Wu, S.W. Lee, and Y.T. Hou. Backup vp preplanning strategies for survivable multicast ATM. In Proceedings IEEE GLOBECOM, pages 267--271, 1997.

No context found.

C.S. Wu, S.W. Lee, and Y.T. Hou. Backup vp preplanning strategies for survivable multicast ATM. In Proceedings IEEE GLOBECOM, pages 267--271, 1997.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC