IGRP Features

TABLE 4 . 1
IGRP Features
Feature Description
Configurable metrics The user can configure metrics involved in the algorithm
responsible for calculating route information.
Triggered update Updates are sent out prior to the update interval timer expiring.
This occurs when the metrics for a route change.
Holddown timer Implemented to prevent routing loops. When inferior updates
are received, IGRP places a route in
holddown.
Holddown
means that the router won’t accept any new information on a
given route for a certain period of time, except from the source
of the original route.
Unequal-cost load-balancing Allows packets to be shared or distributed across multiple
unequal-cost paths.