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Link-state routing protocols are one of the two main classes of routing protocols used in packet switching networks for computer communications, the others being distance-vector routing protocols. [1] Examples of link-state routing protocols include Open Shortest Path First (OSPF) and Intermediate System to Intermediate System (IS-IS). [2] The ...
For example, link flap occurs when an interface on a router has a hardware failure that causes the router to announce it alternately as up and down. In networks with link-state routing protocols , route flapping will force frequent recalculation of the topology by all participating routers.
OSPF uses both unicast and multicast transmission modes to send "hello" packets and link-state updates. As a link-state routing protocol, OSPF establishes and maintains neighbor relationships for exchanging routing updates with other routers. The neighbor relationship table is called an adjacency database. Two OSPF routers are neighbors if they ...
Some common link-layer protocols include IEEE 802.2 and X.25. [1] The data link layer and its associated protocols govern the physical interface between the host computer and the network hardware. The goal of this layer is to provide reliable communications between hosts connected on a network.
However, other mesh, ad hoc (Associativity-Based Routing, Zone Routing Protocol, and location based routing) or dynamic link-state routing (OLSR, B.A.T.M.A.N. [citation needed], OSPF) may be supported or even static routing . See the more detailed description below comparing these routing protocols. A mesh often consists of many small nodes.
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Link State Packet (LSP) is a packet of information generated by a network router in a link state routing protocol that lists the router's neighbors. Link state packets can be further defined as special datagrams that determine the names of and the cost or distance to any neighboring routers and associated networks .
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