Troubleshooting Ospfv3 Configuration; No Ospfv3 Neighbor Relationship Established - H3C S7500E Series Operation Manual

Operation Manual – IPv6 Routing
H3C S7500E Series Ethernet Switches
3.3.3.3

3.9 Troubleshooting OSPFv3 Configuration

3.9.1 No OSPFv3 Neighbor Relationship Established

I. Symptom
No OSPF neighbor relationship can be established.
II. Analysis
If the physical link and lower protocol work well, check OSPF parameters configured on
interfaces. The two neighboring interfaces must have the same parameters, such as
the area ID, network segment and mask, network type. If the network type is broadcast,
at least one interface must have a DR priority higher than 0.
III. Process steps
1) Display neighbor information using the display ospfv3 peer command.
2) Display OSPFv3 interface information using the display ospfv3 interface
command.
3) Ping the neighbor router's IP address to check connectivity.
4) Check OSPF timers. The dead interval on an interface must be at least four times
the hello interval.
5) On a broadcast network, at least one interface must have a DR priority higher than
0.
3.9.2 Incorrect Routing Information
I. Symptom
OSPFv3 cannot find routes to other areas.
II. Analysis
The backbone area must maintain connectivity to all other areas. If a router connects to
more than one area, at least one area must be connected to the backbone. The
backbone cannot be configured as a Stub area.
In a Stub area, all routers cannot receive external routes, and all interfaces connected
to the Stub area must be associated with the Stub area.
III. Solution
1) Use the display ospfv3 peer command to display OSPFv3 neighbors.
2) Use the display ospfv3 interface command to display OSPFv3 interface
information.
2 Full/Backup
3-22
Chapter 3 IPv6 OSPFv3 Configuration
00:00:32 Vlan100 0