| R. Engel, V. Peris, and D. Saha. Using IP Anycast for Load distribution and Server Location. In Proceedings of Global Internet, Dec. 1998. |
....SUPPORT ACTIVE ANYCAST As a network supported content routing, active anyca, st have been proposed by the authors in [6] In active anycast, a router in the network autonomously distributes accesses from clients adequately to geographically dispersed servers. The active anycast is based on anycast[8][9] and active network technology [10] 11] In anycast technology, an anycast address can indicate a group of servers offering the same service. A router which receives an IP datagram whose destination address field includes an anycast address forwards this datagram to an output link on the path ....
R. Engel, V. Peris and D.Saha, "Using IP Anycast for Load Distribution and Server Location," Proc. of IEEE Globecom Global Internet Mini Conference, pp.27-35, Nov. 1998.
....the network around that server. We have proposed a new network paradigm, active anycast , which enables a network to select an adequate server to achieve improvement of average user response time from the viewpoint of load balancing among candidate servers[2] Active anycast makes use of anycast[3][4] 5] and active network technology[6] 10] At a router equipped with the active network technology, an individual operation for each application or for each user can be accomplished. This means that an active router can operate additional intelligent processing as well as conventional routing ....
R.Engel, V.Peris and D.Saha, "Using IP Anycast for Load Distribution and Server Location," Proc. of IEEE Globecom Global Internet Mini Conference, pp.27-35, Nov. 1998.
....but here we assume servers are well provisioned and performance is most a ected by network conditions. 2.1 Previous Work Previous work on anycast services may be taxonomized into approaches working at the network and application layers. Most generally, proposed networklevel anycasting protocols [6, 14] are forced to ignore dynamic network conditions and instead focus on discovering the best server by minimizing network distances. Application level proposals [7, 3] tend to consider combinations of network and server performance in selecting the best server. However, application level proposals ....
....that signaling across domains. Each domain must perform its own set of tests to determine anycast routes. Such testing can be taxing to popular anycast servers as well as intervening network links. One network layer approach to anycast attempts to minimize the number of routers traversed [6, 14]. This approach utilizes existing unicast routing tables to resolve multiple servers sharing the same anycast address. This is unscalable as the route toward each global anycast address would have to be stored at each router. GIA [13] a recently proposed networklayer scheme, attempts to minimize ....
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R. Engel, V. Peris, E. Basturk, V. Peris, and D. Saha. Using IP Anycast for Load Distribution and Server Location. In Proc. Third Global Internet Mini-Conference in conjunction with Globecom '98, November 1998.
....the need for selection by proposing that les be retrieved in parallel from all available servers. Protocol work for server selection, often in the context of anycast [21] has generally been proposed as a new network layer routing or application layer service. Proposed network level protocols [6, 14] most recently the Global Internet Anycast protocol (GIA) 13] focus on discovering the best server by minimizing network distances of some type. As we show in this paper, these approaches are not good predictors of le transfer times between a client and server and can result in problems ....
....based on minimizing the number of router hops between a client and server because of many recently proposed server selection services. The use of a hop count metric can be either by direct measurement [9, 8, 11, 24] at the application layer or by modi cations to unicast or multicast routing [6, 14], or most recently BGP routing [13] In our analysis, when multiple servers were at minimum distance, we averaged their observed transfer times as no other information would allow a resolver to make a distinguishing choice in the most generic case. In this section, we present our evaluation of ....
R. Engel, V. Peris, E. Basturk, V. Peris, and D. Saha. Using IP Anycast for Load Distribution and Server Location. In Proc. Third Global Internet Mini-Conference, November 1998.
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R. Engel, V. Peris, and D. Saha. Using IP Anycast for Load distribution and Server Location. In Proceedings of Global Internet, Dec. 1998.
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