From: Steve Messall (skmessall@attbi.com)
Date: Mon Jan 13 2003 - 23:07:34 GMT-3
I have this same scenario where I work, except OSPF is the routing
protocol (and a tad more bandwidth - DS3s). I favor one PVC over the
other with the command "ip ospf cost 10" on the non-preferred PVC on the
spoke side. If I were using EIGRP, I'd use delay, with the inteface
command "delay xxx" where xxx jacks up the delay on the non-preferred
interface.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Vinay Arora
Sent: Monday, January 13, 2003 10:55 AM
To: ccielab@groupstudy.com
Subject: Selecting a preferred route when using EIGRP
We have a hub and spoke architecture with all remote sites being
connected to and accessing servers at the central site. EIGRP is the
routing protocol and remote sites need to communicate to central site
only and not to each other.
We will be having two physical frame-relay T1 pipes at central site to
the frame relay provider's cloud. These two will be terminating to
different head end routers at central site. We will be having two PVCs
each for remote locations and these PVCs will terminate on different
head-end routers.
I need to make half of the PVC active on first head end and remaining
PVC on second head-end. When one of the head-end routers goes down the
PVC on second should automatically become active. I know I will have to
do changes to the EIGRP config of routers at remote locations (EIGRP
variables delay, offset, AD, BW etc.)
I am considering the various options for selecting a preferred route
when using EIGRP as detailed in the document at
http://www.cisco.com/warp/public/103/14.shtml#O2
This is a very common scenario and I want to check how people do it
normally? Appreciate any thoughts, ideas and concerns.
TIA
Vinay Arora
.
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