From: Joseph Brunner (joe@affirmedsystems.com)
Date: Mon Jan 07 2008 - 15:13:21 ARST
By default static routes only "fail" if the interface loose line protocol or
link (layer 2 and 1 respectively).
You need to learn to use IP SLA to reliably track static routes with a ping,
so they can see beyond the directly connected / next hop interface for
reliability reasons.
That being said, check out General Scott Morris's excellent post on
tcpmag.com on using sla's to track static routes.
-Joe
http://tcpmag.com/qanda/article.asp?EditorialsID=348
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of john
white
Sent: Monday, January 07, 2008 10:40 AM
To: ccielab@groupstudy.com
Subject: EIGRP and Static Routing failover
Hi All,
I have a router A that connects to Router B and Router C. Router B in turn
connects to another Router D. Router C also connects to Router D but via
another router X.
Hence there are 2 paths on the network from router A to router D
i.e Path1: A ----- B -------- D and Path 2: A -------- C -------X
-------D
Path 1 has EIGRP configured all the way for all networks i.e Router A runs
Eigrp with router B which also runs eigrp with router D
Path 2 has static routing configured all the way for all networks
Routing works perfectly fine with both of them independently .
But I need to have them function in automatic failover mode. I.e. once the
static route fails, the EIGRP-learned route should kick in without manual
intervention.
Right now, if there is a failure between Router C and Router X, the EIGRP
learned route to Router D's loopback does not kick in and so I loose
connectivity from Router A to Router D's loopback because the static route
is still in the routing table cause of its lower AD until I manually
intervene but I need the failover to be automated.
Which solutions can i use to achieve this automatic failover? I am
preparing for my CCIE lab.
Thanks
BR
John White
This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:37:58 ARST