Involved Products and Versions
All models and versions
Networking
None
Fault Symptom
Some OSPF routing information of the switch is not advertised to the peer device.
Cause Analysis
On a single process, the number of OSPF interfaces exceeds the upper limit. As a result, routes that exceed the upper limit cannot be advertised.
Troubleshooting Procedure
1. Log in to the switch, and run the display ospf cumulative command in any view to check OSPF statistics.
<HUAWEI> display
ospf cumulative
OSPF Process 1 with Router ID 67.220.175.130
Cumulations
IO Statistics
Type Input
Output
Hello
1368 1341
DB
Description
15 18
Link-State
Req
0 10
Link-State Update
1515 1810
Link-State
Ack
814 813
ASE: 45 Checksum Sum: 3563841
LSAs originated by this router
Router: 1
Network: 0
Sum-Net: 0
Sum-Asbr: 0
External: 1
NSSA: 0
Opq-Link: 0
Opq-Area: 0
Opq-As: 0
LSAs Originated: 2 LSAs Received: 8134
Routing Table:
Intra Area: 1766 Inter Area: 844 ASE: 45
Up Interface Cumulate: 128 //Check the statistics about interfaces
in the UP state. The value is displayed 128.
Neighbor Cumulate:
=======================================================
Neighbor cumulative data. (Process 1)
-------------------------------------------------------
Down: 0 Init: 0
Attempt: 0 2-Way: 0
Exstart: 0 Exchange: 0
Loading: 0 Full: 3
Retransmit Count: 0
Neighbor cumulative data. (Total)
-------------------------------------------------------
Down: 0
Init: 0 Attempt: 0
2-Way: 0
Exstart: 0 Exchange: 0
Loading: 0 Full: 3
Retransmit Count: 0
2. Run the display ospf interface command in any view to check information about OSPF interfaces.
<HUAWEI> display ospf
interface
OSPF Process 1 with Router ID 67.220.175.130
Interfaces
Area: 0.0.0.0 (MPLS TE not
enabled)
IP Address Type State Cost Pri
DR BDR
192.168.1.2 Broadcast DR
1 1 192.168.1.2 192.168.1.3
172.16.0.1 Broadcast DR
1 1 172.16.0.1 172.16.0.2
......//A total of 180 interfaces are calculated.
3. Contact Huawei technical support engineers to check the specification. It is found that the number of interfaces supported on a single OSPF process is 128 and the number of interfaces on the current device is 180, which exceeds the upper limit. Check the network, and run the undo ospf enable command on the interface that does not need to be enabled with OSPF to disable the OSPF function.
Conclusions and Suggestions
The number of interfaces configured for a single OSPF process must not exceed the upper limit. For more information, contact Huawei technical support engineers.
