The routing table of E3 shows the two routes to the 10.90.153.0/24 network,
via 172.23.31.53 and 172.23.31.24.
When I disconnect the link between THCC_1 and Test_1, the routing table on
E3 updates to show just the one route via
172.23.30.24, but I lose the ability to ping or traceroute from E3 to Test_1.
Test_2 pings and traces fine.
Is this a routing or spanning tree issue?
(or maybe there's a better way to do this redundancy?)
My diagram attached. All devices are 3560's.
Thanks much, Ric
What is the output When you do a
show ip route
on the Test_1 when the Link between THCC_1 & Test_1 is down.
Is there any reason that Test_1 is not runnign EIGRP
IF you do not want to run EIGRP on Test_1, then you have to put 2 static default Routes on it with different metrics - one pointing to 10.90.153.101 & 10.90.153.2
Then the return packets will flow back to E3 & you will be able to ping to Test_1 from E1
The same will be the case for Test_2
With regard to your design.
what are you connecting on various switches ?
I've turned on EIGRP on both Test_1 and Test_2.
It re-routes fine when I disconnect either (THCC_1 to Test_1) link or (THCC_2 to Test_2) link.
But now the problem is when I disconnect the link between Test_1 and Test_2, I lose connection to Test_2 because E3 thinks the route to it is still via THCC_1 and Test_1.
Test_1 and Test_2 will have client computers
connected to them. If I have one DHCP scope
for the 10.90.153.0/24 network, what should the router be set to? Test_1 or Test_2?