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New Member

OSPF to OSPF process Redistribution in Nexus

I appreciate the input, just trying to redistribute routes from OSPF 100 to OSPF 1 in a Nexus 5500, I configured a route-map accordingly but I'm still not seeing any of the routes in a downstream OSPF 1 router, below is the configuration, please let me know if I'm missing something here, thanks again!

 

ip prefix-list BRAZIL seq 5 permit 120.43.0.0/16 le 32
ip prefix-list BRAZIL seq 6 permit 29.184.0.0/16 le 32
ip prefix-list BRAZIL seq 7 permit 129.0.0.0/8 le 32
ip prefix-list BRAZIL seq 8 permit 18.134.161.0/24 le 32

route-map ospf100-to-ospf1 permit 10
  match ip address prefix-list BRAZIL

router ospf 1
  router-id 192.168.1.2
  redistribute ospf 100 route-map ospf100-to-ospf1
  passive-interface default

9 REPLIES
Silver

Try adding "subnets" at the

Try adding "subnets" at the end of redistribute command...

 

BR,

Dragan

HTH, Dragan
New Member

There is no option to add

There is no option to add subnets at the end of the redistribute statement under router OSPF

 

redistribute ospf 100 route-map ospf100-to-ospf1 ?
  <CR>  

Hall of Fame Super Silver

Perhaps you could post the

Perhaps you could post the output of show ip ospf on the Nexus?

 

Also can you verify for us that the routes permitted in the prefix list are in the OSPF data base and learned in process 100?

 

HTH

 

Rick

New Member

Thanks Rich, output: Routing

Thanks Rich, output:

 

Routing Process 1 with ID 192.168.1.2 VRF default
 Stateful High Availability enabled
 Graceful-restart is configured
   Grace period: 60 state: Inactive
   Last graceful restart exit status: None
 Supports only single TOS(TOS0) routes
 Supports opaque LSA
 This router is an autonomous system boundary
 Redistributing External Routes from
   ospf-100
 Administrative distance 110
 Reference Bandwidth is 40000 Mbps
 SPF throttling delay time of 200.000 msecs,
   SPF throttling hold time of 1000.000 msecs,
   SPF throttling maximum wait time of 5000.000 msecs
 LSA throttling start time of 0.000 msecs,
   LSA throttling hold interval of 5000.000 msecs,
   LSA throttling maximum wait time of 5000.000 msecs
 Minimum LSA arrival 1000.000 msec
 LSA group pacing timer 10 secs
 Maximum paths to destination 8
 Default Passive Interface is enabled
 Number of external LSAs 371, checksum sum 0xbe4c3a
 Number of opaque AS LSAs 0, checksum sum 0
 Number of areas is 1, 1 normal, 0 stub, 0 nssa
 Number of active areas is 1, 1 normal, 0 stub, 0 nssa
   Area BACKBONE(0.0.0.0)
        Area has existed for 4d20h
        Interfaces in this area: 15 Active interfaces: 11
        Passive interfaces: 15  Loopback interfaces: 1
        No authentication available
        SPF calculation has run 190 times
         Last SPF ran for 0.002239s
        Area ranges are
        Number of LSAs: 30, checksum sum 0xf2c70
 

 

Confirmed that routes are present and learned by OSPF 100

Hall of Fame Super Silver

Thanks for the additional

Thanks for the additional information. But I am a bit puzzled. I see output that tells me about OSPF 1 but no output about OSPF 100.

 

HTH

 

Rick

New Member

Sorry, did not paste, here it

Sorry, did not paste, here it is, thanks!

 

 Routing Process 100 with ID 10.100.1.3 VRF default
 Stateful High Availability enabled
 Graceful-restart is configured
   Grace period: 60 state: Inactive
   Last graceful restart exit status: None
 Supports only single TOS(TOS0) routes
 Supports opaque LSA
 Administrative distance 110
 Reference Bandwidth is 40000 Mbps
 SPF throttling delay time of 200.000 msecs,
   SPF throttling hold time of 1000.000 msecs,
   SPF throttling maximum wait time of 5000.000 msecs
 LSA throttling start time of 0.000 msecs,
   LSA throttling hold interval of 5000.000 msecs,
   LSA throttling maximum wait time of 5000.000 msecs
 Minimum LSA arrival 1000.000 msec
 LSA group pacing timer 10 secs
 Maximum paths to destination 8
 Default Passive Interface is enabled
 Number of external LSAs 152, checksum sum 0x4ee69d
 Number of opaque AS LSAs 0, checksum sum 0
 Number of areas is 1, 1 normal, 0 stub, 0 nssa
 Number of active areas is 1, 1 normal, 0 stub, 0 nssa
   Area (0.0.0.51)
        Area has existed for 2w3d
        Interfaces in this area: 1 Active interfaces: 1
        Passive interfaces: 3  Loopback interfaces: 0
        No authentication available
        SPF calculation has run 180 times
         Last SPF ran for 0.000193s
        Area ranges are
        Number of LSAs: 4, checksum sum 0x2364f

 Routing Process 601 with ID 10.100.112.254 VRF default
 Stateful High Availability enabled
 Graceful-restart is configured
   Grace period: 60 state: Inactive
   Last graceful restart exit status: None
 Supports only single TOS(TOS0) routes
 Supports opaque LSA
 Administrative distance 110
 Reference Bandwidth is 40000 Mbps
 SPF throttling delay time of 200.000 msecs,
   SPF throttling hold time of 1000.000 msecs,
   SPF throttling maximum wait time of 5000.000 msecs
 LSA throttling start time of 0.000 msecs,
   LSA throttling hold interval of 5000.000 msecs,
   LSA throttling maximum wait time of 5000.000 msecs
 Minimum LSA arrival 1000.000 msec
 LSA group pacing timer 10 secs
 Maximum paths to destination 8
 Default Passive Interface is enabled
 Number of external LSAs 0, checksum sum 0
 Number of opaque AS LSAs 0, checksum sum 0
 Number of areas is 0, 0 normal, 0 stub, 0 nssa
 Number of active areas is 0, 0 normal, 0 stub, 0 nssa

 

Hall of Fame Super Silver

Thanks for the additional

Thanks for the additional information. It is helpful to see the information for OSPF 100. Could you post the output of the OSPF database entries for the LSAs for OSPF 100?

 

HTH

 

Rick

New Member

Hi Rich, will do in a few but

Hi Rich, will do in a few but from a configuration standpoint, is all supposed to be needed for OSPF redistribution in place? these are Nexus 5500 switches, thanks so much!

Hall of Fame Super Silver

I looked in a config guide

I looked in a config guide for N5500 and did not notice anything that indicates that you are missing any required part of the config. Since I do not know what version of NXOS you are running I can not be sure if the config guide I used matches the version you are running. And since we have not seen the complete config it is difficult to be sure if something is missing. I wonder if it would be helpful to configure a default metric for OSPF 1?

 

HTH

 

Rick

 

 

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