From: Joseph Brunner (joe@affirmedsystems.com)
Date: Wed Feb 27 2008 - 05:40:38 ARST
Hello John,
The distance command is to influence which routes are selected from the RIB
(database) for entry into the FIB.
If the answer key is touching the distance command its probably doing one of
the following
1. Preventing ospf external routes from being as good as internal routes
(eigrp as you know does this automatically)
2. allowing rip to be preferred in any situation where OSPF/EIGRP internal
would be preferred
3. allowing OSPF to prefer certain routes, although this OFTEN does not work
as IOS is buggy with this command...
If you really want to simplify things draw 4 routes in a square formation.
Advertise a different loopback ip on the router on the top right and bottom
left router.
Run a routing protocol on each link and run two-way redistribution on each
router.
Do this with enough protocols and enough variations of the distance command
until you have exausted many options.
-Joe
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of John
Sent: Tuesday, February 26, 2008 5:03 PM
To: Cisco certification
Subject: Redistribution methodolgy
I need some serious help with redistribution. I just can't seem to get the
logic, especially when I see distance commands. It's not that I don't
understand the distance command I just can't seem to get the logic of how
it's
used.
Even after spending a couple hours looking at my config and the answer key,
I'm still clueless as to where I'm going wrong
Any links to docs would be greatly appreciated
Thanks
JG
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