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OSPF cannot load the LSA into routing-table

Created: Oct 21, 2019 03:39:23Latest reply: Mar 18, 2022 08:17:47 672 3 1 0 1
  Rewarded HiCoins: 0 (problem resolved)

Hello experts, I encountered a problem in the OSPF network.

the topology is as below 


ospf

the LSA can be viewed on R3, but some LSAs cannot be viewed in the routing-table. please check the result below

ospf_result


As the picture shows, 1.1.1.1 cannot be viewed in the ospf routing-table. but on R1, the result is normal, as the picture below shows

ospf normal

the route 3.3.3.3 is loaded in the ospf routing-table.


here are the corresponding configuration

R1:

#
ospf 1 router-id 1.1.1.1 vpn-instance vpn1
 area 0.0.0.0
  network 1.1.1.1 0.0.0.0
  network 12.1.1.0 0.0.0.255
#


R2:

#
ospf 1 router-id 2.2.2.2
 area 0.0.0.0
  network 2.2.2.2 0.0.0.0
  network 12.1.1.0 0.0.0.255
 area 0.0.0.1
  network 23.1.1.0 0.0.0.255
#


R3:

#
ospf 1 router-id 3.3.3.3 vpn-instance vpn1
 area 0.0.0.1
  network 23.1.1.0 0.0.0.255
  network 3.3.3.3 0.0.0.0
#


Any suggestion will be appreciated.

Featured Answers
chenhui
Admin Created Oct 21, 2019 03:48:47

@user_3445655 hello,
from your configuration, the vpn-instance is enabled.
I think the ospf anti-loop rules prevented the LSAs loaded into the ospf routing-table.
you can try disable the anti-loop detection to test if the LSAs could loaded into the ospf routing-table.
NOTICE: please make sure there is NO loop in your topology.
View more
  • x
  • convention:

All Answers
@user_3445655 hello,
from your configuration, the vpn-instance is enabled.
I think the ospf anti-loop rules prevented the LSAs loaded into the ospf routing-table.
you can try disable the anti-loop detection to test if the LSAs could loaded into the ospf routing-table.
NOTICE: please make sure there is NO loop in your topology.
View more
  • x
  • convention:

Thank u for the information OSPF cannot load the LSA into routing-table-3325377-1
View more
  • x
  • convention:

YESSS
View more
  • x
  • convention:

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