Configuration for EIGRP or IGRP

To configure the default metric for IGRP or EIGRP, use the following command syntax:

default-metric bandwidth delay reliability loading mtu

Typically, you should take the values shown on one of the outgoing interfaces of the router being configured, by issuing this exec command:

show interface

The significance of the metric values is shown in Table 10-5.

Table 10-5 The Parameters of the default metric Command

Command Parameter

Description

bandwidth

The minimum bandwidth seen on route to the destination. It is presented

in kilobits/per second (kbps).

delay

The delay experienced on the route and presented in microseconds.

reliability

The probability of a successful transmission given the history of this

interface. The value is expressed in a number from 0 to 255, where 255 is

indicates that the route is stable and available.

loading

A number range of 0 to 255, where 255 indicates that the line is 100

percent loaded.

mtu

The maximum packet size that can travel through the network.

The default metric command is used in Example 10-2 and is illustrated in Figure 10-8.

Example 10-2 shows the configuration of the default metric when redistributing between routing protocols.

Example 10-2 Configuring the Default Metric router eigrp 100

redistribute rip redistribute ospf 10

default-metric 10000 100 255 1 1500

network 140.100.0.0

passive interface e1

passive interface e2

Figure 10-8 Configuring the Default Metric

Figure 10-8 Configuring the Default Metric

Beware of route feedback causing poor network performance.

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