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Redistribute OSPF E1 route to BGP vpnv4

Hi everyone,

I have OSPF as a CE to PE which is up and all looks good, my PE (ASR 9001) has a load of prefixs:

RP/0/RSP0/CPU0:POP-01-PE1#sh ip route vrf A

O*E1 0.0.0.0/0 [1172/51] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

               [1172/51] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

O    172.201.0.0/16 [1172/41] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

                   [1172/41] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

O    172.203.0.0/16 [1172/82] via 172.16.214.231, 15:31:36, Bundle-Ether10.214

                   [1172/82] via 172.16.214.232, 15:31:36, Bundle-Ether10.214

O    172.16.200.0/24 [1172/82] via 172.16.214.231, 15:31:36, Bundle-Ether10.214

                     [1172/82] via 172.16.214.232, 15:31:36, Bundle-Ether10.214

O    172.16.201.0/24 [1172/82] via 172.16.214.231, 15:31:36, Bundle-Ether10.214

                     [1172/82] via 172.16.214.232, 15:31:36, Bundle-Ether10.214

O    172.16.211.0/24 [1172/41] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

                     [1172/41] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

O    172.16.212.0/24 [1172/41] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

                     [1172/41] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

O    172.16.213.0/24 [1172/41] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

                     [1172/41] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

C    172.16.214.0/24 is directly connected, 3w0d, Bundle-Ether10.214

L    172.16.214.254/32 is directly connected, 3w0d, Bundle-Ether10.214

O    172.16.215.0/24 [1172/41] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

                     [1172/41] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

O    172.16.230.0/29 [1172/42] via 172.16.214.231, 15:31:36, Bundle-Ether10.214

                     [1172/42] via 172.16.214.232, 15:31:36, Bundle-Ether10.214

O    172.16.231.0/24 [1172/42] via 172.16.214.231, 16:54:21, Bundle-Ether10.214

                     [1172/42] via 172.16.214.232, 16:54:21, Bundle-Ether10.214

O    172.16.233.0/24 [1172/82] via 172.16.214.231, 15:31:36, Bundle-Ether10.214

                     [1172/82] via 172.16.214.232, 15:31:36, Bundle-Ether10.214

O    172.16.234.0/24 [1172/82] via 172.16.214.231, 15:31:36, Bundle-Ether10.214

I am then redistributing OSPF into BGP:

vrf A

  rd 57:1

  address-family ipv4 unicast

   redistribute ospf 1 match internal external 1 metric 20

I can see all the intra area routes going into BGP but the E1 default isn't :

RP/0/RSP0/CPU0:POP-01-PE1#sh bgp vpnv4 unicast

Status codes: s suppressed, d damped, h history, * valid, > best

              i - internal, r RIB-failure, S stale, N Nexthop-discard

Origin codes: i - IGP, e - EGP, ? - incomplete

   Network            Next Hop            Metric LocPrf Weight Path

Route Distinguisher: 57:1 (default for vrf A)

*> 172.201.0.0/16      172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.203.0.0/16      172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.200.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.201.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.211.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.212.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.213.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*>i172.16.214.0/24    1.1.1.3          20    1720      0 ?

*> 172.16.215.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.230.0/29    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.231.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.233.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.234.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.251.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.16.253.0/24    172.16.214.231          20         32768 ?

* i                   1.1.1.3          20    1720      0 ?

*> 172.27.224.0/24    0.0.0.0                  0         32768 ?

Can someone help me with this please

  • XR OS and Platforms
1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Redistribute OSPF E1 route to BGP vpnv4

Hi,

BGP does not allow the redistribution of the default route by default. You need to use the "default-information originate" to change the default behavior.

vrf A

  rd 57:1 

  default-information originate

  address-family ipv4 unicast

   redistribute ospf 1 match internal external 1 metric 20

Regards

1 REPLY
Cisco Employee

Redistribute OSPF E1 route to BGP vpnv4

Hi,

BGP does not allow the redistribution of the default route by default. You need to use the "default-information originate" to change the default behavior.

vrf A

  rd 57:1 

  default-information originate

  address-family ipv4 unicast

   redistribute ospf 1 match internal external 1 metric 20

Regards

576
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