OSPF issue
I have a lab emulating our actual environment at work. The actual technology is metro Ethernet, but in this lab, each device is interconnected via a regular L2 switch. I am having an issue...
Background:
sl-ce is headquarters.
fa-ce and qs-ce are remote sites
colo-ce is a test site/hot site
The issue:
colo-ce is advertising sl-ce's routes to fa-ce and qs-ce. Thus forcing fa-ce and qs-ce to route through colo-ce, in order to get to sl-ce. I can't figure out why this is happening. I even did a cost of 5 to the colo-ce.
anyone?
Background:
sl-ce is headquarters.
fa-ce and qs-ce are remote sites
colo-ce is a test site/hot site
The issue:
colo-ce is advertising sl-ce's routes to fa-ce and qs-ce. Thus forcing fa-ce and qs-ce to route through colo-ce, in order to get to sl-ce. I can't figure out why this is happening. I even did a cost of 5 to the colo-ce.
anyone?
Comments
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wera711
Member Posts: 23 ■□□□□□□□□□
from qs-ce:
qs_ce#sho ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 172.17.1.1 to network 0.0.0.0
172.17.0.0/16 is variably subnetted, 4 subnets, 2 masks
O 172.17.1.31/32 [110/6] via 172.17.1.101, 00:02:45, Ethernet0/0
C 172.17.1.0/24 is directly connected, Ethernet0/0
O 172.17.1.1/32 [110/6] via 172.17.1.101, 00:02:45, Ethernet0/0
O 172.17.1.101/32 [110/5] via 172.17.1.101, 00:02:45, Ethernet0/0
172.16.0.0/24 is subnetted, 15 subnets
O IA 172.16.32.0 [110/71] via 172.17.1.101, 00:02:45, Ethernet0/0
C 172.16.33.0 is directly connected, Serial0/0:1
C 172.16.34.0 is directly connected, Serial0/1:1
O IA 172.16.31.0 [110/71] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.16.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.12.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.13.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.14.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.15.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.10.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.11.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.1.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.2.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.3.0 [110/7] via 172.17.1.101, 00:02:46, Ethernet0/0
O IA 172.16.101.0 [110/6] via 172.17.1.101, 00:02:46, Ethernet0/0
S* 0.0.0.0/0 [1/0] via 172.17.1.1
qs_ce#
qs_ce#sh ip ospf neig
Neighbor ID Pri State Dead Time Address Interface
172.17.1.31 1 FULL/ - 00:01:49 172.17.1.31 Ethernet0/0
172.17.1.1 255 FULL/ - 00:01:36 172.17.1.1 Ethernet0/0
172.16.101.1 1 FULL/ - 00:01:52 172.17.1.101 Ethernet0/0
qs_ce# -
stuh84
Member Posts: 503
From your neighbour relationships, it looks like everything is coming up as point-to-point. Can you do a sh ip ospf interface and a sh ip ospf database on all 4 routers?Work In Progress: CCIE R&S Written
CCIE Progress - Hours reading - 15, hours labbing - 1 -
deth1k
Member Posts: 312
Get rid of neighbor statements and make your central site router DR (if that was your plan) - ip ospf priority 255 and clearing the adjacencies. Also what is the actual metro ethernet physical topology?