[nsp] Setting router ospf passive-interface default

Wilson, Dan Dan.Wilson at ge.com
Tue Jun 15 11:59:24 EDT 2004


Well, seriously.   You change whether OSPF talks on all interfaces, and
*don't* think it should run the spf algorithm?  You've made a global change
to OSPF, and it *should* re run its whole table!

The method you use to change the config isn't going to matter, either.



-----Original Message-----
From: John Kristoff [mailto:jtk at northwestern.edu] 
Sent: Tuesday, June 15, 2004 10:44 AM
To: cisco-nsp at puck.nether.net
Subject: [nsp] Setting router ospf passive-interface default

Perhaps I've missed something, but is there a way to implement on a
router already running OSPF, where routing interfaces are not going to
be change the following:

  router ospf [process-id]
   passive-interface default

Without having adjacency changes occur?  In my limited testing, either
with a quick copy and paste or tftp upload to the running config, it
seems that either will result in OSPF dropping all interfaces causing
neighbor adjacencies to have to be reestablished.  Since in my example,
the routing interfaces will have 'no passive-interface', routing really
doesn't change so it would be nice if reconvergence didn't have to occur
either.

John
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