Chapter 29
| IP Routing Commands
Routing Information Protocol (RIP)
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default-metric This command sets the default metric assigned to external routes imported from
other protocols. Use the no form to restore the default value.
Syntax
default-metric metric-value
no default-metric
metric-value – Metric assigned to external routes. (Range: 1-15)
Default Setting
1
Command Mode
Router Configuration
Command Usage
â—† This command does not override the metric value set by the redistribute
command. When a metric value has not been configured by the redistribute
command, the default-metric command sets the metric value to be used for
all imported external routes.
â—† The default metric must be used to resolve the problem of redistributing
external routes with incompatible metrics.
â—† It is advisable to use a low metric when redistributing routes from another
protocol into RIP. Using a high metric limits the usefulness of external routes
redistributed into RIP. For example, if a metric of 10 is defined for redistributed
routes, these routes can only be advertised to routers up to 5 hops away, at
which point the metric exceeds the maximum hop count of 15. By defining a
low metric of 1, traffic can follow a imported route the maximum number of
hops allowed within a RIP domain. However, note that using a low metric can
increase the possibility of routing loops For example, this can occur if there are
multiple redistribution points and the router learns about the same external
network with a better metric from a redistribution point other than that
derived from the original source.
Example
This example sets the default metric to 5.
Console(config-router)#default-metric 5
Console(config-router)#
Related Commands
redistribute (826)
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