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Rick Morris
Frequent Contributor

EIGRP route in Routing Table and not in Topology Table

In EIGRP I understood the routing table is built from the best route in the topology table.  Please see details below:

Jul  8 13:19:15: %DUAL-3-SIA: Route 10.2.83.124/30 stuck-in-active state in IP-E
IGRP(0) 110.  Cleaning up
GRLAGT2#                         ping 10.2.83.125

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.83.125, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
GRLAGT2#sh ip route 10.2.83.125
Routing entry for 10.2.83.124/30
  Known via "eigrp 110", distance 90, metric 26885632, type internal
  Redistributing via eigrp 110
  Last update from 10.0.4.2 on GigabitEthernet0/1, 00:04:39 ago
  Routing Descriptor Blocks:
  * 10.0.4.2, from 10.0.4.2, 00:04:39 ago, via GigabitEthernet0/1
      Route metric is 26885632, traffic share count is 1
      Total delay is 50220 microseconds, minimum bandwidth is 100 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 5/255, Hops 4

GRLAGT2#sh ip eigrp top 10.2.83.124
% IP-EIGRP (AS 110): Route not in topology table
GRLAGT2#sh ip route | i 10.2.83.124
D       10.2.83.124/30
GRLAGT2#

What would cause a route to remain in the routing table and not be in the topology table?

1 ACCEPTED SOLUTION

Accepted Solutions
lgijssel
Engager

You have made a mistake in the sh ip eigrp topo command. Check the syntax difference below.

This is exactly what you  did:

R1>sh ip eigrp topo 172.31.24.0

% IP-EIGRP (AS 1): Route not in topology table

Like this it works as expected:

R1>sh ip eigrp topo 172.31.24.0/30

IP-EIGRP (AS 1): Topology entry for 172.31.24.0/30

  State is Passive, Query origin flag is 1, 1 Successor(s), FD is 1280

  Routing Descriptor Blocks:

  172.31.11.2 (FastEthernet0/0), from 172.31.11.2, Send flag is 0x0

      Composite metric is (1280/768), Route is Internal

      Vector metric:

        Minimum bandwidth is 1544 Kbit

        Total delay is 50 microseconds

        Reliability is 255/255

        Load is 1/255

        Minimum MTU is 1500

        Hop count is 1

  172.31.14.2 (Serial1/0.4), from 172.31.14.2, Send flag is 0x0

      Composite metric is (1536/768), Route is Internal

      Vector metric:

        Minimum bandwidth is 1544 Kbit

        Total delay is 60 microseconds

        Reliability is 255/255

        Load is 1/255

        Minimum MTU is 1500

        Hop count is 1

R1>

regards,

Leo

View solution in original post

3 REPLIES 3
cadet alain
Advisor

hi,

Just try show ip eigrp topology 10.2.83.124 255.255.255.252

Regards.

Alain.

Don't forget to rate helpful posts.
lgijssel
Engager

You have made a mistake in the sh ip eigrp topo command. Check the syntax difference below.

This is exactly what you  did:

R1>sh ip eigrp topo 172.31.24.0

% IP-EIGRP (AS 1): Route not in topology table

Like this it works as expected:

R1>sh ip eigrp topo 172.31.24.0/30

IP-EIGRP (AS 1): Topology entry for 172.31.24.0/30

  State is Passive, Query origin flag is 1, 1 Successor(s), FD is 1280

  Routing Descriptor Blocks:

  172.31.11.2 (FastEthernet0/0), from 172.31.11.2, Send flag is 0x0

      Composite metric is (1280/768), Route is Internal

      Vector metric:

        Minimum bandwidth is 1544 Kbit

        Total delay is 50 microseconds

        Reliability is 255/255

        Load is 1/255

        Minimum MTU is 1500

        Hop count is 1

  172.31.14.2 (Serial1/0.4), from 172.31.14.2, Send flag is 0x0

      Composite metric is (1536/768), Route is Internal

      Vector metric:

        Minimum bandwidth is 1544 Kbit

        Total delay is 60 microseconds

        Reliability is 255/255

        Load is 1/255

        Minimum MTU is 1500

        Hop count is 1

R1>

regards,

Leo

View solution in original post

Rick Morris
Frequent Contributor

Thank you very much!