default-metric
This command sets the default metric assigned to e xternal routes imp orted fro m
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: 0-15)
Command Mode
Router Configuration
Default Setting
8
Command Usage
• This command does not override the metric value set by the redistribute
command (see page 42-11). 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.
• The default metric must be used to resolve the problem of redistributing
external routes with incompatible metrics.
• 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 router s up to 5 hops away , at
which point the metric exceeds the max imum hop count of 15. By defining a
low metric of 1, traffic can follow a imported rou te the max imum n umber of
hops allowed within a RIP domain. However, note that using a low met ric can
increase the possibility of routing loop s For exampl e, this ca n 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 der ived
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 (42-11)
42-7
Routing Information Protocol (RIP)
42