From: brian pitts (pittsbrian21@hotmail.com)
Date: Thu Sep 06 2007 - 21:51:28 ART
All,
This is my first time using this and I was wonder if I could get some help in
a matter I'm having in my test lab..preparing for my CCIE R/S.
I have a network topology consisting of multiple OSPF areas and 1 areas don't
have ties to the backbone area so a Virtual link is needed. This is what I
have.
(r2)--area0, area 25 and area 246 --- RID=2.2.2.2
|
|
(r5)--area 25, and area 57 --- RID=5.5.5.5
|
|
(r7)--area 57 --- RID= 7.7.7.7
So what I'm trying to do is use area 25 as my transit area and extend area 0
to r2 so that r7 area 57 has a connection to the backbone area 0.
Creating a virtual link is simeple so I don't know what I having such trouble.
For some reason I can not get the Virtual Link interface to come up. If I go
to the r5 and do a sho ip opsf you see the area 0 but says the interface is
inactive. I have tried changing RID and clearing the ospf process. Reloading
the routers and many other things with no avil.
r2#router ospf 1 router-id 2.2.2.2 log-adjacency-changes area 25
virtual-link 5.5.5.5
network 150.50.12.2 0.0.0.0 area 0 network 150.50.25.2 0.0.0.0 area 25
network 150.50.246.2 0.0.0.0 area 246 neighbor 150.50.246.6 priority 1
neighbor 150.50.246.4 priority 1
r2#sho ip ospf vVirtual Link OSPF_VL8 to router 5.5.5.5 is down Run as demand
circuit DoNotAge LSA allowed. Transit area 25, Cost of using 65535 Transmit
Delay is 1 sec, State DOWN, Timer intervals configured, Hello 10, Dead 40,
Wait 40, Retransmit 5
r2#sho ip ospf n
Neighbor ID Pri State Dead Time Address
Interface1.1.1.1 1 FULL/DR 00:00:34 150.50.12.1
FastEthernet5.5.5.5 0 FULL/ - 00:00:38 150.50.25.5
Serial0/0.256.6.6.6 1 FULL/DR 00:01:59 150.50.246.6
Serial0/0.2464.4.4.4 1 FULL/DROTHER 00:01:47 150.50.246.4
Serial0/0.246
r2#sho ip ospf Routing Process "ospf 1" with ID 2.2.2.2 Supports only single
TOS(TOS0) routes Supports opaque LSA Supports Link-local Signaling (LLS) It is
an area border router Initial SPF schedule delay 5000 msecs Minimum hold time
between two consecutive SPFs 10000 msecs Maximum wait time between two
consecutive SPFs 10000 msecs Incremental-SPF disabled Minimum LSA interval 5
secs Minimum LSA arrival 1000 msecs LSA group pacing timer 240 secs Interface
flood pacing timer 33 msecs Retransmission pacing timer 66 msecs Number of
external LSA 1. Checksum Sum 0x0193A2 Number of opaque AS LSA 0. Checksum Sum
0x000000 Number of DCbitless external and opaque AS LSA 0 Number of DoNotAge
external and opaque AS LSA 0 Number of areas in this router is 3. 3 normal 0
stub 0 nssa External flood list length 0 Area BACKBONE(0) Number of
interfaces in this area is 2 Area has no authentication SPF
algorithm last executed 02:12:52.992 ago SPF algorithm executed 3 times
Area ranges are Number of LSA 6. Checksum Sum 0x057112 Number of
opaque link LSA 0. Checksum Sum 0x000000 Number of DCbitless LSA 0
Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list
length 0 Area 25 Number of interfaces in this area is 1 Area
has no authentication SPF algorithm last executed 01:53:35.632 ago
SPF algorithm executed 7 times Area ranges are Number of LSA 5.
Checksum Sum 0x045850 Number of opaque link LSA 0. Checksum Sum
0x000000 Number of DCbitless LSA 0 Number of indication LSA 0
Number of DoNotAge LSA 0 Flood list length 0 Area 246 Number
of interfaces in this area is 1 Area has no authentication SPF
algorithm last executed 03:19:39.440 ago SPF algorithm executed 3 times
Area ranges are Number of LSA 8. Checksum Sum 0x073F16 Number of
opaque link LSA 0. Checksum Sum 0x000000 Number of DCbitless LSA 0
Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list
length 0
r5#router ospf 1 router-id 5.5.5.5 log-adjacency-changes area 25
virtual-link 2.2.2.2 network 150.50.25.5 0.0.0.0 area 25 network
150.50.57.5 0.0.0.0 area 57
r5#sho ip ospf v Virtual Link OSPF_VL2 to router 2.2.2.2 is down Run as
demand circuit DoNotAge LSA allowed. Transit area 25, Cost of using 65535
Transmit Delay is 1 sec, State DOWN, Timer intervals configured, Hello 10,
Dead 40, Wait 40, Retransmit 5
r5#sho ip ospf n
Neighbor ID Pri State Dead Time Address
Interface7.7.7.7 1 FULL/DR 00:00:32 150.50.57.7
Ethernet02.2.2.2 100 FULL/DR 00:00:37 150.50.25.2
Serial0
r5#sho ip ospf Routing Process "ospf 1" with ID 5.5.5.5 Supports only single
TOS(TOS0) routes Supports opaque LSA SPF schedule delay 5 secs, Hold time
between two SPFs 10 secs Minimum LSA interval 5 secs. Minimum LSA arrival 1
secs Number of external LSA 4. Checksum Sum 0x20F88 Number of opaque AS LSA 0.
Checksum Sum 0x0 Number of DCbitless external and opaque AS LSA 0 Number of
DoNotAge external and opaque AS LSA 0 Number of areas in this router is 3. 3
normal 0 stub 0 nssa External flood list length 0 Area BACKBONE(0)
(Inactive) Number of interfaces in this area is 1 Area has no
authentication SPF algorithm executed 1 times Area ranges are
Number of LSA 0. Checksum Sum 0x0 Number of opaque link LSA 0. Checksum
Sum 0x0 Number of DCbitless LSA 0 Number of indication LSA 0
Number of DoNotAge LSA 0 Flood list length 0 Area 25 Number
of interfaces in this area is 1 Area has no authentication SPF
algorithm executed 20 times Area ranges are Number of LSA 15.
Checksum Sum 0x7B8E8 Number of opaque link LSA 0. Checksum Sum 0x0
Number of DCbitless LSA 0 Number of indication LSA 0 Number of
DoNotAge LSA 0 Flood list length 0 Area 57 Number of
interfaces in this area is 1 Area has no authentication SPF
algorithm executed 12 times Area ranges are Number of LSA 8.
Checksum Sum 0x554E1 Number of opaque link LSA 0. Checksum Sum 0x0
Number of DCbitless LSA 0 Number of indication LSA 0 Number of
DoNotAge LSA 0 Flood list length 0
Also I'm not sure why the cost on the virtual link would be 65535
Thanks,
Brian
This archive was generated by hypermail 2.1.4 : Sat Oct 06 2007 - 12:01:09 ART