From: Stephen Hull (shull@getsouthern.com)
Date: Sat Jul 23 2005 - 23:38:43 GMT-3
Thanks for the reply. What I am really interested in is how the router
goes about redistributing routes between routing protocols. I am only
referring to routes between RIP-EIGRP-OSPF, etc. I want to see where
the router gets it's information for redistribution and where it puts
it's information once it has it.
Also, is there a RIB for statics and connected routes?
Thanks,
Stephen
________________________________
From: Sayeed Kachroo [mailto:sayeedk@hotmail.com]
Sent: Saturday, July 23, 2005 7:19 PM
To: gustavo.novais@novabase.pt; Stephen Hull; ccielab@groupstudy.com
Subject: RE: Redistribution and RIBs
When you use Redistribution on the border router between the two
routers, it depends how are you redistributing. I mean routing protools
from one to another or redistribute static or redistribute connected, in
all cases i am going to looking in to my routing table to see what route
match your redistribution command. When you do redistribute connected,
it will redistribute all your connected routes, but make sure the link
between the two routers is the same routing protocol, otherwise routing
updates will not go over that interface.
HTH
SK
>From: "Gustavo Novais" <gustavo.novais@novabase.pt>
>Reply-To: "Gustavo Novais" <gustavo.novais@novabase.pt>
>To: "Stephen Hull" <shull@getsouthern.com>, <ccielab@groupstudy.com>
>Subject: RE: Redistribution and RIBs
>Date: Sun, 24 Jul 2005 00:45:24 +0100
>
>Hello,
>
>Your question is one I've been also debating since I've started my prep
>for CCIE. I'm not trying to be accurate or mislead you in no way. I'm
>only telling you what I've learned.
> For what I've understood, when you redistribute between two routing
>protocols the router goes to the Routing table and see which routes are
>present in it for each routing protocol. Besides that it also checks
the
>RIBs of each protocol to see what routes belonging to which protocol
are
>directly connected (those belonging to a network statement). If you
>notice, connected routes are present on the routing table as connected,
>nevertheless they are redistributed. (I think ISIS is a bit tricky on
>that, you have to redist connected, correct me if I'm wrong, please,
I'm
>always learning).
>
>One thing you must be aware, I've noticed it throughout my practicing,
>is that if you do redist connected but filter which routes are
>redistributed, the denied routes, even if they are under a network
>statement, are not redistributed.
>
>I think my explanation is what I've come to understand of my study, and
>one of the big guys (Michael Jordan type :)) should be able, at least
to
>point, you on the right direction. My advise is try it for your self,
>and learn it the hard way... You may read about it often, but you won't
>remember it unless you try it... (just like some other things in life!)
>
>HTH
>
>Gustavo
>
>PS. Please correct me if I'm wrong or innacurate in any aspect
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Stephen Hull
>Sent: domingo, 24 de Julho de 2005 0:12
>To: ccielab@groupstudy.com
>Subject: Redistribution and RIBs
>
>I have a question about redistribution. I would like to know exactly
>what happens on the router when you redistribute between routing
>protocols. Specifically, does the redistribution command use the
>routing table for redistribution or does it look directly at the RIBs
>for each routing protocol and use those to redistribute directly
between
>them? I am just trying to get a good handle on where and what the
>commands are actually doing.
>
>
>
>
>
>
>
>
>
>
>
> Thanks,
>
>
>
>Stephen
>
>_______________________________________________________________________
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
>
>_______________________________________________________________________
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sun Sep 04 2005 - 17:00:30 GMT-3