Attacks on the IS-IS routing protocol Project in Computer Security (236349)
نویسندگان
چکیده
Area is a part of a large network. If the entire network was consisted of a single set of routers, all with a common database, then calculating the SPF would cost exponential time. The main idea is that a router would have to know only its area topological horizon,thus calculating the SPF on a smaller graph which keeps the CPU less busy. Inter-area routing is done by choosing the path to the closest interconnecting router, without considering the graph outside the area. Thus it trades CPU resources for sub-optimal routing.
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