Computer Systems Technology DCN286 Lecture Notes - Network Layer, Unicast, Classless Inter-Domain Routing

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Advertised distance(ad)/reported distance(rd) is the cost between the next-hop router and the destination. Feasible distance(fd) is the cost between the local router and the next-hop router plus the next-hop router"s ad to the destination network. Feasible successor(fs) is a neighbor that is closer to the destination, but it is not the least-cost path, ensures a loop- free topology, have an ad less than the fd of the current successor route. Diffusing update algorithm (dual) the routing algorithms that tracks all routes advertised by all neighbors and uses distance information, known as the composite metric, to select efficient, loop-free paths to all destinations. Wildcard masks used to enable eigrp on specific interfaces, is an inverse of the subnet mask. Zeros are equivalent to a full match(do care bits) Eigrp is a cisco-proprietary distance-vector protocol with link-state features. Seamless connectivity across all data link layer protocols and topologies.

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