EIGRP SIA?

Unanswered Question
Jul 22nd, 2008

IP-EIGRP Topology Table for AS(100)/ID(5.5.5.5)


Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

r - reply Status, s - sia Status


P 10.0.10.0/24, 1 successors, FD is 2816

via Connected, Vlan10

P 10.0.11.0/24, 1 successors, FD is 2816

via Connected, Vlan11

P 10.0.0.0/21, 1 successors, FD is 2816

via Connected, Vlan1

P 10.0.27.0/24, 1 successors, FD is 2816

via Connected, Vlan27

P 10.0.30.0/24, 1 successors, FD is 2816

via Connected, Vlan30

P 10.0.31.0/24, 1 successors, FD is 2816

via Connected, Vlan31

P 10.0.28.0/24, 1 successors, FD is 2816

via Connected, Vlan28

P 10.0.23.0/24, 1 successors, FD is 2816

via Connected, Vlan23

P 10.0.41.0/24, 1 successors, FD is 2816

via Connected, Vlan41

P 10.0.45.0/24, 1 successors, FD is 2816

via Connected, Vlan45

P 10.0.34.0/24, 1 successors, FD is 2816

via Connected, Vlan34

P 10.0.35.0/24, 1 successors, FD is 2816

via Connected, Vlan35

P 10.0.32.0/24, 1 successors, FD is 2816

via Connected, Vlan32

P 10.0.38.0/24, 1 successors, FD is 2816

via Connected, Vlan38

P 10.0.39.0/24, 1 successors, FD is 2816

via Connected, Vlan39

P 10.0.36.0/24, 1 successors, FD is 2816

via Connected, Vlan36

P 10.0.37.0/24, 1 successors, FD is 2816

via Connected, Vlan37

A 10.0.58.0/24, 0 successors, FD is 3072

4 replies, active never, query-origin: Local origin

via 10.0.2.25 (3072/2816), Vlan1

Remaining replies:

via 10.0.2.77, r, Vlan1

via 10.0.2.76, r, Vlan1

via 10.0.2.32, r, Vlan1

via 10.0.2.79, r, Vlan1

P 10.0.56.0/24, 1 successors, FD is 3072

via 10.0.2.32 (3072/2816), Vlan1

A 10.0.60.0/24, 0 successors, FD is 3072

2 replies, active never, query-origin: Local origin

via 10.0.2.79 (3072/2816), Vlan1

Remaining replies:

via 10.0.2.76, r, Vlan1

via 10.0.2.32, r, Vlan1

P 10.0.50.0/24, 1 successors, FD is 3072

via 10.0.2.76 (3072/2816), Vlan1

P 10.0.48.0/24, 1 successors, FD is 2816

via Connected, Vlan48

P 10.0.54.0/24, 1 successors, FD is 3072

via 10.0.2.77 (3072/2816), Vlan1

P 10.0.55.0/24, 1 successors, FD is 3072

via 10.0.2.32 (3072/2816), Vlan1

P 10.0.53.0/24, 1 successors, FD is 3072

via 10.0.2.77 (3072/2816), Vlan1

P 10.0.103.0/24, 1 successors, FD is 2816

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

r - reply Status, s - sia Status


via Connected, Vlan103

P 10.0.100.0/24, 1 successors, FD is 2816

via Connected, Vlan100

P 10.0.101.0/24, 1 successors, FD is 2816

via Connected, Vlan101


Can anyone give me some advice on these routes that are in ACTIVE? I've been reading up as much as i can on SIA. The links are all 100M Ethernet through my ISP and the CPU's are barely doing any work.

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Overall Rating: 5 (2 ratings)
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francisco_1 Tue, 07/22/2008 - 04:11

are you getting the routes stuck in Active from the same EIGRP nei?


might be a connectivity problem between your router and the ISP.


send us the "show ip eigrp nei" output.

cowetacoit Tue, 07/22/2008 - 04:18

Actually no. The neighbors appear to be working correctly. The show ip eigrp top has all routes in PASSIVE. I have about 5 3560s configured as stub.


This output is from the same switch as previous post....Cisco 4506


Admin_4506#sh ip eigrp neighbors

IP-EIGRP neighbors for process 100

H Address Interface Hold Uptime SRTT RTO Q Seq Type

(sec) (ms) Cnt Num

0 10.0.2.77 Vl1 14 09:05:30 28 200 0 257

1 10.0.2.76 Vl1 12 18:26:51 7 200 0 345

2 10.0.2.25 Vl1 10 07:09:37 1 4500 0 9

3 10.0.2.32 Vl1 12 18:26:50 7 200 0 223

4 10.0.2.79 Vl1 12 17:53:05 44 264 0 101

francisco_1 Tue, 07/22/2008 - 04:34

according to the message, the route in active is going through recomputation because the route is Active and your router is looking for another successor i think

cowetacoit Tue, 07/22/2008 - 04:37

It seems to be stuck though....any suggestions on how to fix this? Those routes seems to be working fine. I can ping remote devices on those vlans.

cowetacoit Tue, 07/22/2008 - 04:49

I issued a clear ip eigrp neighbor command and they all came back as passive. i'll keep an eye on it.

francisco_1 Tue, 07/22/2008 - 04:49

A 10.0.58.0/24, 0 successors, FD is 3072

4 replies, active never, query-origin: Local origin

via 10.0.2.25 (3072/2816), Vlan1


the router is waiting for an answer from router 10.0.2.25. you need to login to 10.0.2.25 to find out why it's not replying

cowetacoit Tue, 07/22/2008 - 07:28

I agree, thank you. I ran some SHOW INTERFACES and noticed a lot of collisions on the trunk ports going to the ISP. I have emailed them. I'm set to AUTO but the ports are running at 10half and 100half. Probably try to force them all to full duplex. hopefully that is the problem. There were "interface resets" as well which would cause an re adjacency.

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