cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1058
Views
2
Helpful
5
Replies

EIGRP route selection

nurairtt
Level 1
Level 1

Can anyone please explain why EIGRP choose a route with highest metric. As you can see from the below output, route  from 10.18.1.2 has better metric. But it was not choosen

 

Switch# sh ip route 10.1.0.0
IP Route Table for VRF "default"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>

10.1.0.0/16, ubest/mbest: 1/0
*via 10.18.1.1, Eth1/34, [90/2000003840], 08:33:10, eigrp-1, internal

SWITCH# sh ip eigrp topology 10.1.0.0/16

IP-EIGRP (AS 1): Topology entry for 10.1.0.0/16
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2000003840
Routing Descriptor Blocks:
10.18.1.1 (Ethernet1/14), from 10.18.1.1, Send flag is 0x0
Composite metric is (2000003840/2000003584), Route is Internal
Vector metric:
Minimum bandwidth is 1000000 Kbit
Total delay is 78125050 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 4
Internal tag is 0
10.18.1.2 (Ethernet1/19), from 10.18.1.2, Send flag is 0x0
Composite metric is (2000003584/2000003328), Route is Internal
Vector metric:
Minimum bandwidth is 1000000 Kbit
Total delay is 78125040 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 3
Internal tag is 0
SWITCH#

5 Replies 5

chrihussey
VIP Alumni
VIP Alumni

Hello - Is there an explanation as to why the "sh ip route 10.1.0.0" says to use E1/34 and in the topology the choices are E1/14 & 19?

My bad. It was a typo. Route table also points to 1/14.

show ip eigrp topology active <<- can you share this 
show ip eigrp topology detail-links <<- also this 

MHM

I am not seeing any active routes or nonfeasible-successor.

can you confirm if you config max hop under eigrp or not ?

MHM