From: Kenneth Wygand (KWygand@customonline.com)
Date: Sun Jan 25 2004 - 02:04:40 GMT-3
Paul,
Yes, Bob is correct. Each route table lookup should cause the primary route to alternate. The * represents the NEXT path to take, which should alternate after that route is used.
Ken
-----Original Message-----
From: nobody@groupstudy.com on behalf of Bob Sinclair
Sent: Sat 1/24/2004 10:59 PM
To: Paul Chen; ccielab@groupstudy.com
Cc:
Subject: Re: RIP - path selection
Paul,
Notice the traffic share counts are the same. If you do a slow ping and
continue to repeat the show command, I think you will see the asterisk
alternate between the routes.
HTH,
Bob Sinclair
CCIE #10427, CISSP, MCSE
www.netmasterclass.net
----- Original Message -----
From: "Paul Chen" <cpjchen@starhub.net.sg>
To: <ccielab@groupstudy.com>
Sent: Saturday, January 24, 2004 9:29 PM
Subject: RIP - path selection
> Hi All,
>
>
>
> Given the same metric values how does RIP decide which path to choose to a
> destination network ?
>
>
>
> I know that equal cost load balancing takes place but in this scenario ,
one
> path is chosen over the other :
>
>
>
>
>
> R3 R2
>
> \ /
>
> R5
>
>
>
>
>
> R 141.37.106.0/24 [120/1] via 141.37.25.2, 00:00:03, Serial0
>
> [120/1] via 141.37.35.3, 00:00:03,
Serial1
>
>
>
> R 141.37.101.0/24 [120/1] via 141.37.25.2, 00:00:03, Serial0
>
> [120/1] via 141.37.35.3, 00:00:03,
Serial1
>
>
>
>
>
> R5#
>
> R5#sh ip ro 141.37.101.0
>
> Routing entry for 141.37.101.0/24
>
> Known via "rip", distance 120, metric 1
>
> Redistributing via rip
>
> Last update from 141.37.25.2 on Serial0, 00:00:11 ago
>
> Routing Descriptor Blocks:
>
> * 141.37.25.2, from 141.37.25.2, 00:00:11 ago, via Serial0
> <-------------------- This path to R2 is chosen over R3
>
> Route metric is 1, traffic share count is 1
>
> 141.37.35.3, from 141.37.35.3, 00:00:16 ago, via Serial1
>
> Route metric is 1, traffic share count is 1
>
>
>
>
> R2 is chosen over R3 even though the metric values are the same ?
>
>
>
> Any help appreciated.
>
>
>
> Thanks.
>
> Paul
>
> _______________________________________________________________________
> Please help support GroupStudy by purchasing your study materials from:
> http://shop.groupstudy.com
>
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
_______________________________________________________________________
Please help support GroupStudy by purchasing your study materials from:
http://shop.groupstudy.com
Subscription information may be found at:
http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Mon Feb 02 2004 - 09:07:50 GMT-3