From: Andrew G. Mason (andrew@xxxxxxxxxxxxx)
Date: Fri Jan 19 2001 - 12:38:09 GMT-3
Hi,
I am configuring EIGRP unequal cost load balancing over seven routers in a
three tier scenario using the variance command.
There is one router at tier one, two routers at tier two and four routers at
tier three. The two routers in the second tier have single links to tier 1
as well as single links to two routers each in tier 3.
The first router in tier 2 functions great and shows multiple routes to the
192.168.8.0 network, the second router at tier two only shows one route?
Here is the sh ip ei top for the working router.. I am interested in the
routes to the 192.168.8.0 network.
Router3#sh ip eigrp top
IP-EIGRP Topology Table for process 10
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - Reply status
P 192.168.8.0/24, 1 successors, FD is 2195456
via 192.168.4.2 (2195456/281600), Serial2
via 192.168.2.2 (2684416/2172416), Serial1
P 192.168.0.0/24, 1 successors, FD is 2169856
via Connected, Serial0
P 192.168.1.0/24, 2 successors, FD is 2681856
via 192.168.2.2 (2681856/2169856), Serial1
via 192.168.0.1 (2681856/2169856), Serial0
P 192.168.2.0/24, 1 successors, FD is 2169856
via Connected, Serial1
P 192.168.4.0/24, 1 successors, FD is 2169856
via Connected, Serial2
P 192.168.6.0/24, 1 successors, FD is 2681856
via 192.168.2.2 (2681856/2169856), Serial1
via 192.168.4.2 (2707456/2195456), Serial2
Router3#
Here is the same output for the router that is not playing.
Router4#sh ip eigrp top
IP-EIGRP Topology Table for process 10
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - Reply status
P 192.168.8.0/24, 1 successors, FD is 2172416
via 192.168.6.2 (2172416/28160), Serial3
P 192.168.0.0/24, 2 successors, FD is 2681856
via 192.168.2.1 (2681856/2169856), Serial1
via 192.168.1.1 (2681856/2169856), Serial0
P 192.168.1.0/24, 1 successors, FD is 2169856
via Connected, Serial0
P 192.168.2.0/24, 1 successors, FD is 2169856
via Connected, Serial1
P 192.168.4.0/24, 1 successors, FD is 2681856
via 192.168.2.1 (2681856/2169856), Serial1
via 192.168.6.2 (2684416/2172416), Serial3
P 192.168.6.0/24, 1 successors, FD is 2169856
via Connected, Serial3
Router4#
You can see that Router4 reaches 192.168.8.0 via 192.168.6.2, however, if I
disable this interface, the other route (via 192.168.2.1) appears??
Any body any clues.
Router3 is IOS 12.09 Ent and Router4 is IOS 11.3 Ent, both 4000Ms
Cheers
Andrew....
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