From: Mounir Mohamed (mounir.mohamed@gmail.com)
Date: Thu Sep 06 2007 - 22:04:33 ART
Could you share the running config of R5 or at least the output of Show ip
ospd database ofr R5.
On 9/7/07, brian pitts <pittsbrian21@hotmail.com> wrote:
>
> 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
>
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-- Best Reagrds, Mounir Mohamed
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