From: Jared Scrivener (jscrivener@ipexpert.com)
Date: Fri Mar 20 2009 - 21:42:10 ART
Thanks. J
Cheers,
Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
Sr. Technical Instructor - IPexpert, Inc.
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
Mailto: <mailto:jscrivener@ipexpert.com> jscrivener@ipexpert.com
From: Radioactive Frog [mailto:pbhatkoti@gmail.com]
Sent: Friday, 20 March 2009 7:57 PM
To: Jared Scrivener
Cc: ccie forum
Subject: Re: What is the RIB?
Great explanation mate.............
On Fri, Mar 20, 2009 at 2:07 AM, Jared Scrivener <jscrivener@ipexpert.com>
wrote:
Each protocol: RIP, OSPF, BGP, EIGRP etc. will have its own database of
routing information gathered based on its own method. Routes they consider
"good" (loop free, reachable next hop) are candidates for the RIB. The RIB
is created through selecting from each routing protocol's own database of
learned routes (filtering on criteria such as longest match and AD) until
all known routes are in the RIB.
The RIB (Routing Information Base) is the routing table. It gets used by CEF
to create the FIB (Forwarding Information Base) which is the table used to
forward packets (in most cases).
Cheers,
Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
Sr. Technical Instructor - IPexpert, Inc.
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
Mailto: jscrivener@ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Mukom TAMON
Sent: Thursday, 19 March 2009 8:46 AM
To: Cisco certification
Subject: What is the RIB?
Hi all,
I kind of get confused as to what the RIB [routing information base is]
.... I read some material and it is implied that the RIB is the routing
table while sometimes, I understand it to be the repository from which
routers are selected and put into the routing table [like BGP table, OSPF &
EIGRP topology tables]. Please can someone explain this to me? thanks
M.A. TAMON
B.Eng, CCNP, CCNA
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