Customizing DVMRP
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Setting the Route Expiration Timer
The route expiration timer determines how long DVMRP waits for an update
message indicating that a route is reachable. Upon expiration of this timer, this
route is advertised as unreachable until it is refreshed or until it is deleted.
By default, DVMRP sets the route expiration timer to 200 seconds (3 minutes, 20
seconds). You can use the BCC or Site Manager to set the route expiration time
from 20 through 4000 seconds (1 hour, 6 minutes, and 40 seconds).
Using the BCC
To reset the route expiration timer, navigate to the global DVMRP prompt (for
example,
box; ip; dvmrp
) and enter:
route-expiration-timeout
<seconds>
seconds
is an integer from 20 through 4000 indicating the number of seconds.
For example, the following command sets the route expiration timer to 500
seconds (8 minutes, 20 seconds):
dvmrp#
route-expiration-timeout 500
dvmrp#
Note:
DVMRP timers must be the same throughout the network.
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