Appendix D. Memory Tables Answer Key

Chapter 7

Table 7-2 EIGRP Terminology

Term

Definition

Successor route

The route with the lowest path metric to reach a destination.

The successor route for R1 to reach 10.4.4.0/24 on R4 is R1→R3→R4.

Successor

The first next-hop router for the successor route.

The successor for 10.4.4.0/24 is R3.

Feasible distance (FD)

The metric value for the lowest-metric path to reach a destination. The feasible distance is calculated locally using the formula shown in the “Path Metric Calculation” section, later in this chapter.

The FD calculated by R1 for the 10.4.4.0/24 network is 3328 (that is, 256+256+2816).

Reported distance (RD)

The distance reported by a router to reach a prefix. The reported distance ...

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