5.2.3 - EIGRP Flashcards

Flashcards about EIGRP

What two default elements make up EIGRP's metric?

Bandwidth and Delay

How does EIGRP determine cost based on Bandwidth?

Applies a cost based on the lowest bandwidth link in the path.

How does EIGRP determine cost based on Delay?

Applies a cost based on the time it takes for a packet to traverse the link; calculated as the cumulative value for all outgoing interfaces in the path.

What is the purpose of IGRP?

To provide a routing protocol for routing within a domain or autonomous system.

Why was Enhanced IGRP (EIGRP) developed?

Limitations in IGRP, such as lack of support for classless addressing.

How does EIGRP compare to RIP as a distance vector protocol?

EIGRP sends a full update when it first establishes contact with a neighbor and thereafter only sends updates when there is a topology change, while RIP sends periodic updates of its entire routing information base.

How does EIGRP use regular hello messaging?

To confirm connectivity with its neighbors.

What does EIGRP maintain alongside its routing information base?

A topology table.

How is EIGRP encapsulated?

Directly in IP datagrams.

What is the protocol number for EIGRP in the IP header?

88

How are EIGRP updates transmitted?

Using multicast addressing.