ospf discard-route external... please explain.

From: Lee Carter (l2carter@yahoo.com)
Date: Fri Jun 24 2005 - 17:53:15 GMT-3


All,

I am having a difficult time understanding exactly
what the discard-route command does under the ospf
router configuration sub-command.

I konw what the generic deffinition is:

discard-route
To reinstall either an external or internal discard
route that was previously removed, use the
discard-route command in router configuration mode. To
remove either an external or internal discard route,
use the no form of this command.

discard-route [external | internal]

no discard-route [external | internal]

Syntax Description
 external
 (Optional) Reinstalls the discard route entry for
redistributed summarized routes on an Autonomous
System Boundary Router (ASBR).
 
internal
 (Optional) Reinstalls the discard-route entry for
summarized internal routes on the Area Border Router
(ABR).
 

I don't quite grasp what they are trying to do here.
Some explaination in different terms may be helpfull.

Thanks,

Lee

                



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