OSPF discard-route

From: Roger Oliver (divineone@divine-wind.net)
Date: Mon Sep 15 2008 - 02:13:18 ART


okay fuzzy understanding

R1 <--Area1--> R2 <--Area0--> R3 <--Area2--> R4

R2 is summarizing 1.1.0.0/22 (which are the hosts on R1)
R4 is summarizing 4.4.0.0/22 (which are it's local loopbacks)

Why do I put on
R2 "no discard-route internal"
R4 "no discard-route external"

What is the logic?

R4 is doing it's own summary or it's own connected routes so they are
"external"?

While R2 is summarizing routes it gets from another host so they are
"internal"?

Is this just another one of those it made sense to the person that wrote
it when they were drinking beers and coding at 4am on their last day on
the job?

Thank you for comments.

Now that I write this it makes more sense but clarification of my bad
dream would be appreciated.
roger
divineone@divine-wind.net

Blogs and organic groups at http://www.ccie.net



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