Friday, May 21, 2010

BSCI - EIGRP terms

Advertised Distance = Metric reported FROM a neighbor, alos known as 'Reported Distance'
Feasible Distance = The metric of the best path
Successor = Best/Primary path assed in to the routing table
Feasible Successor = Secondary/backup path retained in the topology table, must meet the 'Feasibility Condition'
Feasibility Condition = To be considered a Feasible Successor, the Advertised Distance MUST be lower than the Feasible Distance (full path) to be considered a Feasible Successor
- If the Advertised Distance is larger than the Feasible Distance then by definition the path must longer and therefore not as good.
- The Feasible Successor means that a new path can be selected with out recalculation therefore the protocol is fast

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