10.3. Link-State Routing Protocols
Link-state protocols also fall into the classless category of routing protocols, and they work within packet-switched networks. Examples of link-state routing protocols include OSPF and IS-IS.
Remember, in order to be a classless routing protocol, the subnet-mask information must be carried with the routing update so that all neighbor routers know the cost of the network route that's being advertised. One of the biggest differences between link-state and distance-vector protocols is that link-state protocols learn and maintain much more information about the internetwork than distance-vector routing protocols do. Distance-vector routing protocols only maintain a routing table with the destination routes in ...
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