From: Tinis, Phillip (phillip.tinis@eds.com)
Date: Mon Jul 05 2004 - 23:08:19 GMT-3
Hello Ken,
It took process of elimination to get the answer. I was not able to find it
documented anywhere.
Good question. :-)
.-Phillip Tinis-.
_____
From: Kenneth Wygand [mailto:KWygand@customonline.com]
Sent: Monday, July 05, 2004 8:49 PM
To: Tinis, Phillip; ccielab@groupstudy.com
Subject: RE: Quiz question of the day 20040704
Phillip,
You are correct! :)
I didn't see this mentioned in the link you sent. Have you found this
documented by Cisco somewhere?
Thanks!
Ken
_____
From: nobody@groupstudy.com on behalf of Tinis, Phillip
Sent: Sun 7/4/2004 8:45 PM
To: ccielab@groupstudy.com
Subject: RE: Quiz question of the day 20040704
1st - BGP
2rd - EIGRP
3rd - OSPF
4th - RIP
The router will revert back to the default decision making algorithm based
on the default administrative distances.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr
<http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fip
r>
rp_r/ind_r/1rfindp1.htm#wp1039950
.-Phillip Tinis-.
-----Original Message-----
From: Kenneth Wygand [mailto:KWygand@customonline.com
<mailto:KWygand@customonline.com> ]
Sent: Sunday, July 04, 2004 11:46 AM
To: ccielab@groupstudy.com
Subject: Quiz question of the day 20040704
Hello everybody!
Happy 4th of July! It's time for your next brain-twisting quiz question of
the day!
R1(s0=.1)----12.12.12.0/24----(s0=.2)R2(lo0=.2)----2.2.2.0/24
R1 connect to R2 through a serial link with a network of 12.12.12.0/24 (R1
uses .1 and R2 uses .2).
R2 also has a loopback0 interface with 2.2.2.2/24.
R1 and R2 are running the following routing protocols between each other:
BGP (External)
RIP (Version 2)
EIGRP
OSPF
R2 advertises its 2.2.2.0/24 network into all of these routing protocols and
sends them to R1.
R1 and R2 have all of their routing protocols configured so that R1 receives
the exact same network (2.2.2.0/24) in all four routing protocols natively
(no redistribution). Routes are -NOT- summarized or entered as host routes
anywhere.
R1 has the administrative distances for each routing protocol set as
follows:
BGP (External) - AD set to 120
RIP (Version 2) - AD defaults to 120
EIGRP - AD set to 120
OSPF - AD set to 120
The clock rate of the serial interface between R1 and R2 is set to 64000,
but the interface bandwidth has not been modified from its default.
The metric derivation algorithm for each routing protocol has -NOT- been
modified.
To give all routing protocols a "fair chance", after all configuration is
set, both routers are reloaded at the same time.
Now for the questions------------------------
1) Once all routing protocols have converged, which route(s) from which
routing protocol(s) will be in the IP routing table?
2) If not all routes from all routing protocols will be active in the IP
routing table, which route(s) will be "backup(s)" for the primary route(s)
and in what order?
3) What is the determining factor for which route(s) get put into the IP
routing table as the primary route(s)?
Good luck with this one. I made up the question and I didn't get the results
I expected. Let's see if any of you can get it!
Best of luck, and enjoy your 4th of July holiday!
Ken
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