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Introduction
Published in Weidong Wu, Packet Forwarding Technologies, 2007
Dynamic routing, used in Internetworking across wide area networks, automatically reconfigures the routing table and recalculates the least expensive path. In this case, routers broadcast advertisement packets (signifying their presence) to all network nodes and communicate with other routers about their network connections, the cost of connections, and their load levels. Convergence, or reconfiguration of the routing tables, must occur quickly, before routers with incorrect information misroute data packets into dead ends. Some dynamic routers can also rebalance the traffic load.
Multicast Routing and Multicast Forwarding Information Base (MFIB) Architecture
Published in James Aweya, Switch/Router Architectures, 2019
Dynamic routing protocols facilitate the dissemination of network reachability information and allow routers to exchange updated routing information when topology and link cost changes occur in the network. The main responsibility of a dynamic routing protocol includes the discovery of directly attached and remote hosts and networks, exchange of routing updates to maintain up-to-date routing information in routers, calculation of best paths to network destinations, and the determination of new best paths if the existing paths are no longer available or reachable.
Teletraffic Theory
Published in Goff Hill, The Cable and Telecommunications Professionals' Reference, 2012
Advances in the technology of modern telecommunications systems have led to considerable interest in schemes that can dynamically control the routing of calls within a network. The purpose of such dynamic routing schemes is to adjust routing patterns within the network in accordance with varying and uncertain offered traffics, to make better use of spare capacity in the network resulting from dimensioning upgrades or forecasting errors, and to provide extra flexibility and robustness to respond to failures or overloads.
A Survey on Packet Switching Networks
Published in IETE Journal of Research, 2022
Routing protocols have two different types: static and dynamic. In the static routing protocol, the routing table is not prepared automatically; instead, the network administrator prepares it, and whenever any change is required in the routing table, the network administrator updates it. The static routing protocol is divided into four types; standard static, default static, summary static, and floating static. The dynamic routing protocol automatically configures the routing table. The network administrator does not need to update or maintain the routing table. The dynamic routing protocol has further two categories of technologies/protocols; Exterior Gateway Protocol (EGP) and Interior Gateway Protocol (IGP). The IGP has further two types that are distance vector routing protocol and link-state routing protocol. These two categories of routing protocols have further different types, see figure 6. In comparison, the EGP has only one further type that is a path-vector routing protocol. Furthermore, the Border Gateway Protocol (BGP) is a path-vector routing protocol, see figure 6.