command.
Use the bandwidth-percent
command when the bandwidth setting of a link does not reflect its true
speed. The bandwidth value may be artificially low for a variety of
reasons, such as to manipulate the routing metric, or to accommodate an
oversubscribed multipoint Frame Relay configuration. Regardless of the
reasons, configure EIGRP to overcome an artificially low bandwidth setting
by setting the bandwidth-percent
to a higher number. In some cases, it may even be set to a number above
100.
For example, assume that the actual
bandwidth of a router's serial link is 64 Kbps, but the bandwidth value is
set artificially low, to 32 Kbps. The figure shows how to modify EIGRP's
behavior so that it limits routing protocol traffic according to the
actual bandwidth of the serial interface. The example configuration sets
serial 0's bandwidth-percent to 100 percent for the EIGRP process running
in AS 24. Since 100 percent of 32 kbps is 32, EIGRP will be allowed to use
half of the actual bandwidth of 64 Kbps.
Note that you can change EIGRP's percentage
of bandwidth for IP, IPX, and AppleTalk with the following commands: