EIGRP Summary-address behavior

From: cebuano (cebu2ccie@cox.net)
Date: Tue Jan 07 2003 - 01:58:12 GMT-3


Hello.
I'd like to know if the command "ip summary-address eigrp" as documented
on CCO has changed. It is described under the command reference as
follows.
 
EIGRP summary routes are given an administrative distance value of 5.
The administrative distance metric is used to advertise a summary
without installing it in the routing table.
But I'm getting two conflicting results.
1. I don't see the admin distance of 5.
2. I see the summary installed in the routing table.
 
MC3810a(config-if)#ip summary-address eigrp 2001 150.100.200.0
255.255.255.0
 
MC3810a#ir
 
     150.100.0.0/16 is variably subnetted, 7 subnets, 2 masks
D 150.100.200.0/24 is a summary, 00:02:41, Null0
C 150.100.200.0/30 is directly connected, Serial0
D 150.100.100.0/24 [90/2681856] via 150.100.200.1, 00:02:07,
Serial0
D EX 150.100.2.0/24 [170/2195456] via 150.100.200.1, 00:02:07,
Serial0
C 150.100.3.0/24 is directly connected, Ethernet0
D EX 150.100.1.0/24 [170/2195456] via 150.100.200.1, 00:02:07,
Serial0
D 150.100.10.0/24 [90/2185984] via 150.100.200.1, 00:02:09,
Serial0
 
MC3810a#sh ip eigrp topo
IP-EIGRP Topology Table for AS(2001)/ID(192.168.254.1)
 
P 150.100.200.0/24, 1 successors, FD is 2169856
         via Summary (2169856/0), Null0
P 150.100.200.0/30, 1 successors, FD is 2169856
         via Connected, Serial0
P 150.100.100.0/24, 1 successors, FD is 2681856
         via 150.100.200.1 (2681856/2169856), Serial0
P 150.100.2.0/24, 1 successors, FD is 2195456
         via 150.100.200.1 (2195456/281600), Serial0
P 150.100.3.0/24, 1 successors, FD is 281600
         via Connected, Ethernet0
P 150.100.1.0/24, 1 successors, FD is 2195456
         via 150.100.200.1 (2195456/281600), Serial0
P 150.100.10.0/24, 1 successors, FD is 2185984
         via 150.100.200.1 (2185984/176128), Serial0
 
Any comments?
Thanks.
Elmer
.



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