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Pb to propagate ospf routes to another router on a 4507

iibesis
Level 1
Level 1

Hi,

On a 4507 v12.2(20)EW, the connected subnets which are declared in the ospf instance are not propagated to the MPLS carrier router.

Only the static routes which are redistributed in the ospf instance are propagated to the MPLS carrier router.

11 Replies 11

JohnTylerPearce
Level 7
Level 7

Does your service provider ask you to create a BGP peer with them or an OSPF peer? Sounds

like it's redistributing static routes into thte MPLS network and not the connected subnets.

We might understand the issues better if the original poster would provide more information. In particular it would help if we could see the configuration of OSPF and see the output of show ip ospf interface and see the output of show ip interface brief.

HTH

Rick

HTH

Rick

Sh ip ospf interface

Vlan28 is up, line protocol is up

  Internet Address 10.10.28.3/23, Area 0

  Process ID 1, Router ID 10.20.30.3, Network Type BROADCAST, Cost: 1

  Transmit Delay is 1 sec, State DR, Priority 1

  Designated Router (ID) 10.20.30.3, Interface address 10.10.28.3

  No backup designated router on this network

  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5

    oob-resync timeout 40

    No Hellos (Passive interface)

  Index 3/3, flood queue length 0

  Next 0x0(0)/0x0(0)

  Last flood scan length is 0, maximum is 0

  Last flood scan time is 0 msec, maximum is 0 msec

  Neighbor Count is 0, Adjacent neighbor count is 0

  Suppress hello for 0 neighbor(s)

Vlan30 is up, line protocol is up

  Internet Address 10.10.30.2/23, Area 0

  Process ID 1, Router ID 10.20.30.3, Network Type BROADCAST, Cost: 1

  Transmit Delay is 1 sec, State DR, Priority 1

  Designated Router (ID) 10.20.30.3, Interface address 10.10.30.2

  No backup designated router on this network

  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5

    oob-resync timeout 40

    No Hellos (Passive interface)

  Index 5/5, flood queue length 0

  Next 0x0(0)/0x0(0)

  Last flood scan length is 0, maximum is 0

  Last flood scan time is 0 msec, maximum is 0 msec

  Neighbor Count is 0, Adjacent neighbor count is 0

  Suppress hello for 0 neighbor(s)

Vlan1 is up, line protocol is up

  Internet Address 10.11.30.3/23, Area 0

  Process ID 1, Router ID 10.20.30.3, Network Type BROADCAST, Cost: 1

  Transmit Delay is 1 sec, State DR, Priority 1

  Designated Router (ID) 10.20.30.3, Interface address 10.11.30.3

  No backup designated router on this network

  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5

    oob-resync timeout 40

    Hello due in 00:00:08

  Index 4/4, flood queue length 0

  Next 0x0(0)/0x0(0)

  Last flood scan length is 0, maximum is 0

  Last flood scan time is 0 msec, maximum is 0 msec

  Neighbor Count is 0, Adjacent neighbor count is 0

  Suppress hello for 0 neighbor(s)

Vlan320 is up, line protocol is up

  Internet Address 10.20.30.3/24, Area 0

  Process ID 1, Router ID 10.20.30.3, Network Type BROADCAST, Cost: 1

  Transmit Delay is 1 sec, State DR, Priority 1

  Designated Router (ID) 10.20.30.3, Interface address 10.20.30.3

  No backup designated router on this network

  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5

    oob-resync timeout 40

    Hello due in 00:00:04

  Index 1/1, flood queue length 0

  Next 0x0(0)/0x0(0)

  Last flood scan length is 0, maximum is 40

  Last flood scan time is 0 msec, maximum is 4 msec

  Neighbor Count is 0, Adjacent neighbor count is 0

  Suppress hello for 0 neighbor(s)

FastEthernet7/6 is up, line protocol is up (connected)

  Internet Address 10.9.1.138/30, Area 0

  Process ID 1, Router ID 10.20.30.3, Network Type BROADCAST, Cost: 1

  Transmit Delay is 1 sec, State DR, Priority 1

  Designated Router (ID) 10.20.30.3, Interface address 10.9.1.138

  No backup designated router on this network

  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5

    oob-resync timeout 40

    Hello due in 00:00:04

  Index 2/2, flood queue length 0

  Next 0x0(0)/0x0(0)

  Last flood scan length is 0, maximum is 0

  Last flood scan time is 0 msec, maximum is 0 msec

  Neighbor Count is 0, Adjacent neighbor count is 0

  Suppress hello for 0 neighbor(s)

sh ip interface brief

Vlan1                      10.11.30.3      YES manual up                    up

Vlan28                     10.10.28.3      YES NVRAM  up                    up

Vlan30                     10.10.30.2      YES NVRAM  up                    up

Vlan315                    10.15.30.3      YES NVRAM  up                    up

Vlan318                    10.18.30.3      YES NVRAM  up                    up

Vlan320                    10.20.30.3      YES manual up                    up

Vlan430                    10.14.30.3      YES NVRAM  up                    up

GigabitEthernet1/1         unassigned      YES unset  down                  down

GigabitEthernet1/2         unassigned      YES unset  down                  down

GigabitEthernet2/1         unassigned      YES unset  down                  down

GigabitEthernet2/2         unassigned      YES unset  down                  down

GigabitEthernet3/1         unassigned      YES unset  up                    up

GigabitEthernet3/2         unassigned      YES unset  up                    up

GigabitEthernet3/3         unassigned      YES unset  up                    up

GigabitEthernet3/4         unassigned      YES unset  up                    up

GigabitEthernet3/5         unassigned      YES unset  up                    up

GigabitEthernet3/6         unassigned      YES unset  up                    up

GigabitEthernet3/7         unassigned      YES unset  up                    up

GigabitEthernet3/8         unassigned      YES unset  up                    up

GigabitEthernet3/9         unassigned      YES unset  up                    up

GigabitEthernet3/10        unassigned      YES unset  up                    up

GigabitEthernet3/11        unassigned      YES unset  up                    up

GigabitEthernet3/12        unassigned      YES unset  up                    up

GigabitEthernet3/13        unassigned      YES unset  up                    up

GigabitEthernet3/14        unassigned      YES unset  up                    up

GigabitEthernet3/15        unassigned      YES unset  up                    up

GigabitEthernet3/16        unassigned      YES unset  up                    up

GigabitEthernet3/17        unassigned      YES unset  up                    up

GigabitEthernet3/18        unassigned      YES unset  down                  down

GigabitEthernet4/1         unassigned      YES unset  up                    up

GigabitEthernet4/2         unassigned      YES unset  up                    up

GigabitEthernet4/3         unassigned      YES unset  up                    up

GigabitEthernet4/4         unassigned      YES unset  up                    up

GigabitEthernet4/5         unassigned      YES unset  down                  down

GigabitEthernet4/6         unassigned      YES unset  down                  down

GigabitEthernet4/7         unassigned      YES unset  down                  down

GigabitEthernet4/8         unassigned      YES unset  up                    up

GigabitEthernet4/9         unassigned      YES unset  up                    up

GigabitEthernet4/10        unassigned      YES unset  up                    up

GigabitEthernet4/11        unassigned      YES unset  up                    up

GigabitEthernet4/12        unassigned      YES unset  up                    up

GigabitEthernet4/13        unassigned      YES unset  up                    up

GigabitEthernet4/14        unassigned      YES unset  up                    up

GigabitEthernet4/15        unassigned      YES unset  up                    up

GigabitEthernet4/16        unassigned      YES unset  up                    up

GigabitEthernet4/17        unassigned      YES unset  up                    up

GigabitEthernet4/18        unassigned      YES unset  down                  down

FastEthernet5/1            unassigned      YES unset  down                  down

FastEthernet5/2            unassigned      YES unset  down                  down

FastEthernet5/3            unassigned      YES unset  up                    up

FastEthernet5/4            unassigned      YES unset  down                  down

FastEthernet5/5            unassigned      YES unset  down                  down

FastEthernet5/6            unassigned      YES unset  up                    up

FastEthernet5/7            unassigned      YES unset  up                    up

FastEthernet5/8            unassigned      YES unset  down                  down

FastEthernet5/9            unassigned      YES unset  up                    up

FastEthernet5/10           unassigned      YES unset  down                  down

FastEthernet5/11           unassigned      YES unset  up                    up

FastEthernet5/12           unassigned      YES unset  down                  down

FastEthernet5/13           unassigned      YES unset  up                    up

FastEthernet5/14           unassigned      YES unset  up                    up

FastEthernet5/15           unassigned      YES unset  up                    up

FastEthernet5/16           unassigned      YES unset  up                    up

FastEthernet5/17           unassigned      YES unset  down                  down

FastEthernet5/18           unassigned      YES unset  up                    up

FastEthernet5/19           unassigned      YES unset  up                    up

FastEthernet5/20           unassigned      YES unset  up                    up

FastEthernet5/21           unassigned      YES unset  up                    up

FastEthernet5/22           unassigned      YES unset  down                  down

FastEthernet5/23           unassigned      YES unset  up                    up

FastEthernet5/24           unassigned      YES unset  up                    up

FastEthernet5/25           unassigned      YES unset  up                    up

FastEthernet5/26           unassigned      YES unset  down                  down

FastEthernet5/27           unassigned      YES unset  down                  down

FastEthernet5/28           unassigned      YES unset  up                    up

FastEthernet5/29           unassigned      YES unset  down                  down

FastEthernet5/30           unassigned      YES unset  up                    up

FastEthernet5/31           unassigned      YES unset  up                    up

FastEthernet5/32           unassigned      YES unset  down                  down

FastEthernet5/33           unassigned      YES unset  up                    up

FastEthernet5/34           unassigned      YES unset  down                  down

FastEthernet5/35           unassigned      YES unset  up                    up

FastEthernet5/36           unassigned      YES unset  up                    up

FastEthernet5/37           unassigned      YES unset  down                  down

FastEthernet5/38           unassigned      YES unset  up                    up

FastEthernet5/39           unassigned      YES unset  up                    up

FastEthernet5/40           unassigned      YES unset  down                  down

FastEthernet5/41           unassigned      YES unset  up                    up

FastEthernet5/42           unassigned      YES unset  up                    up

FastEthernet5/43           unassigned      YES unset  up                    up

FastEthernet5/44           unassigned      YES unset  down                  down

FastEthernet5/45           unassigned      YES unset  up                    up

FastEthernet5/46           unassigned      YES unset  down                  down

FastEthernet5/47           unassigned      YES unset  up                    up

FastEthernet5/48           unassigned      YES unset  down                  down

GigabitEthernet6/1         unassigned      YES unset  up                    up

GigabitEthernet6/2         unassigned      YES unset  up                    up

GigabitEthernet6/3         unassigned      YES unset  up                    up

GigabitEthernet6/4         unassigned      YES unset  up                    up

GigabitEthernet6/5         unassigned      YES unset  up                    up

GigabitEthernet6/6         unassigned      YES unset  up                    up

GigabitEthernet6/7         unassigned      YES unset  up                    up

GigabitEthernet6/8         unassigned      YES unset  up                    up

GigabitEthernet6/9         unassigned      YES unset  up                    up

GigabitEthernet6/10        unassigned      YES unset  up                    up

GigabitEthernet6/11        unassigned      YES unset  up                    up

GigabitEthernet6/12        unassigned      YES unset  up                    up

GigabitEthernet6/13        unassigned      YES unset  down                  down

GigabitEthernet6/14        unassigned      YES unset  up                    up

GigabitEthernet6/15        unassigned      YES unset  up                    up

GigabitEthernet6/16        unassigned      YES unset  up                    up

GigabitEthernet6/17        unassigned      YES unset  up                    up

GigabitEthernet6/18        unassigned      YES unset  up                    up

GigabitEthernet6/19        unassigned      YES unset  up                    up

GigabitEthernet6/20        unassigned      YES unset  up                    up

GigabitEthernet6/21        unassigned      YES unset  up                    up

GigabitEthernet6/22        unassigned      YES unset  up                    up

GigabitEthernet6/23        unassigned      YES unset  down                  down

GigabitEthernet6/24        unassigned      YES unset  up                    up

FastEthernet7/1            unassigned      YES unset  down                  down

FastEthernet7/2            unassigned      YES unset  down                  down

FastEthernet7/3            unassigned      YES unset  down                  down

FastEthernet7/4            unassigned      YES unset  down                  down

FastEthernet7/5            unassigned      YES unset  down                  down

FastEthernet7/6            10.9.1.138      YES NVRAM  up                    up

FastEthernet7/7            unassigned      YES unset  up                    up

FastEthernet7/8            unassigned      YES unset  up                    up

FastEthernet7/9            unassigned      YES unset  administratively down down

FastEthernet7/10           unassigned      YES unset  up                    up

FastEthernet7/11           unassigned      YES unset  down                  down

FastEthernet7/12           unassigned      YES unset  up                    up

FastEthernet7/13           unassigned      YES unset  up                    up

FastEthernet7/14           unassigned      YES unset  up                    up

FastEthernet7/15           unassigned      YES unset  down                  down

FastEthernet7/16           unassigned      YES unset  up                    up

FastEthernet7/17           unassigned      YES unset  up                    up

FastEthernet7/18           unassigned      YES unset  up                    up

FastEthernet7/19           unassigned      YES unset  up                    up

FastEthernet7/20           unassigned      YES unset  up                    up

FastEthernet7/21           unassigned      YES unset  up                    up

FastEthernet7/22           unassigned      YES unset  up                    up

FastEthernet7/23           unassigned      YES unset  down                  down

FastEthernet7/24           unassigned      YES unset  up                    up

FastEthernet7/25           unassigned      YES unset  up                    up

FastEthernet7/26           unassigned      YES unset  down                  down

FastEthernet7/27           unassigned      YES unset  down                  down

FastEthernet7/28           unassigned      YES unset  down                  down

FastEthernet7/29           unassigned      YES unset  up                    up

FastEthernet7/30           unassigned      YES unset  down                  down

FastEthernet7/31           unassigned      YES unset  up                    up

FastEthernet7/32           unassigned      YES unset  down                  down

FastEthernet7/33           unassigned      YES unset  up                    up

FastEthernet7/34           unassigned      YES unset  down                  down

FastEthernet7/35           unassigned      YES unset  up                    up

FastEthernet7/36           unassigned      YES unset  up                    up

FastEthernet7/37           unassigned      YES unset  up                    up

FastEthernet7/38           unassigned      YES unset  up                    up

FastEthernet7/39           unassigned      YES unset  up                    up

FastEthernet7/40           unassigned      YES unset  up                    up

FastEthernet7/41           unassigned      YES unset  up                    up

FastEthernet7/42           unassigned      YES unset  down                  down

FastEthernet7/43           unassigned      YES unset  up                    up

FastEthernet7/44           unassigned      YES unset  up                    up

FastEthernet7/45           unassigned      YES unset  down                  down

FastEthernet7/46           unassigned      YES unset  down                  down

FastEthernet7/47           unassigned      YES unset  up                    up

FastEthernet7/48           unassigned      YES unset  up                    up

Port-channel1              unassigned      YES unset  up                    up

Port-channel2              unassigned      YES unset  up                    up

Port-channel3              unassigned      YES unset  up                    up

Port-channel21             unassigned      YES unset  up                    up

Port-channel22             unassigned      YES unset  up                    up

Port-channel23             unassigned      YES unset  up                    up

Port-channel24             unassigned      YES unset  up                    up

Port-channel31             unassigned      YES unset  up                    up

Port-channel32             unassigned      YES unset  up                    up

Port-channel41             unassigned      YES unset  up                    up

Port-channel42             unassigned      YES unset  up                    up

Port-channel43             unassigned      YES unset  up                    up

Port-channel51             unassigned      YES unset  up                    up

Port-channel52             unassigned      YES unset  up                    up

Port-channel53             unassigned      YES unset  up                    up

Port-channel54             unassigned      YES unset  up                    up

Port-channel55             unassigned      YES unset  up                    up

They are doing an ospf peer. They ask to declare the subnets in the ospf instead instead of adding redistribute connected subnets.It seems that this last command does not match their needs.

The ospf instance is

router ospf 1

log-adjacency-changes

redistribute static metric-type 1 subnets

passive-interface Vlan28

passive-interface Vlan30

passive-interface Vlan315

passive-interface Vlan318

passive-interface Vlan430

network 10.9.1.136 0.0.0.3 area 0

network 10.10.28.0 0.0.1.255 area 0

network 10.10.30.0 0.0.1.255 area 0

network 10.11.30.0 0.0.1.255 area 0

network 10.14.30.0 0.0.1.255 area 0

network 10.15.30.0 0.0.1.255 area 0

network 10.18.30.0 0.0.1.255 area 0

network 10.20.30.0 0.0.0.255 area 0

All the subnets whicb are declared, are connected vlans. Only the static routes whicd are redistributed are seen by the carrier router

Is this configuration above from the router that has an OSPF peer relationship with the ISP? It almost sounds like

the OSPF peer at the MPLS PE, is not correctly redistributing your networks. Did they inform you that they would

only redistribute static routes? Since you have an OSPF peer relationship with the MPLS CE, then the networks should

be seen on the ISP peer, unless they have some sort of filtering going on. They should be redistributing that into the MPLS

Cloud.

The configuration is working on other sites where our core switches are 3750. On other sites, they receive the conneceted subnets when they are delclared directly in ospf instance.

Have u contacted your service provider? They should b receving your routes unless some sort of filtering is going on. Can you verify the ospf neighbor/adjacency with the ISP?

Thank you for the additional information which I requested. It is quite helpful in understanding the issue. If you check the output of show ip ospf interface you will find that all of the interfaces have zero neighbors. So you are running OSPF but with no neighbors you are not sending any updates.

I am not sure how the carrier is seeing the static routes but it is not from the OSPF that you have showed us.

Which of these interfaces is the one where the carrier is connected?

HTH

Rick

HTH

Rick

Good find Richard. It appears as if that would be the issue.

There is no ospf neighbor because the provider router is stopped. It was a migration to this new provider. So we came back to the previous situation.Its for that reason you do not see provider router in the list.

I confirm that during the migration I was with the provider engineer, we do not find any reason of the problemn. I m waiting for the engineer.He will reactivate only the Lan interface of the router. We will be able then to check the ospf redistribution

We can only help troubleshoot what you have shown us. You describe a problem and give us certain information about the problem. In what you have shown us the problem is that there was no neighbor relationship with the carrier. If that is not the real problem then you need to supply information that correctly reflects the real problem.

If you recreate the problem then at that time please give us updated information that reflects the problem. It should include at a minimum the configuration of OSPF, the output of show ip ospf interface, and the output of show ip ospf, and of show ip ospf neighbor.

HTH

Rick

HTH

Rick
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