3.
Troubleshooting Functional Failures in Operation
79
3.10 IPv6 Unicast Routing Communication Failure
3.10.1
No RIPng Routing Information Exists
Isolate the problem according to the failure analysis method listed below if RIPng route information does not exist in
the displayed route information acquired by this system.
Table 3-35: Failure Analysis of RIPng
3.10.2
No OSPFv3 Routing Information Exists
Isolate the problem according to the failure analysis method listed below if OSPFv3 route information does not exist in
the displayed route information acquired by this system.
Table 3-36: Failure Analysis of OSPFv3
No.
Troubleshooting Steps and Command
Action
1
RIPng neighboring information is displayed.
show ipv6 rip neighbor
Go to No. 2 if the interface of a neighboring router is not displayed.
Go to No. 3 if the interface of a neighboring router is displayed.
2
Check to see if the RIPng setting is correct in
configuration.
Go to No. 3 if the configuration is correct.
Correct the configuration if it is not correct.
3
Confirm that the routing are not filtered by
referring to the configuration.
Check to see if the neighboring router advertises the RIPng route.
Correct the configuration if it is not correct.
No.
Troubleshooting Steps and Command
Action
1
Check the interface status of OSPFv3.
show ipv6 ospf interface
<Interface
Name>
Go to No. 3 if the interface status is DR.
Go to No. 2 if the interface status is BackupDR or DR Other.
Execute the command again after a certain period if the interface status is
"Waiting." Go to No. 1.
2
Check the status of a neighboring router of DR
from Neighbor List.
Go to No. 4 if the status of the neighboring router of DR is other than Full.
Go to No. 5 if the status of the neighboring router of DR is Full.
3
Check the status of all neighboring routers from
Neighbor List.
Go to No. 4 if the status of some neighboring routers is other than Full.
Go to No. 5 if the status of all neighboring routers is Full.
4
Check to see if the OSPFv3 setting is correct in
configuration.
Go to No. 5 if the configuration is correct.
Correct the configuration if it is not correct.
5
Check the OSPFv3 routes that have been
learned.
show ipv6 route all-routes
Go to No. 6 if the route is set to "InActive."
If no route exists, check to see if the neighboring router advertises the
OSPFv3 route.
6
Confirm that the routing are not filtered by
referring to the configuration.
Check to see if the neighboring router advertises the OSPFv3 route.
Correct the configuration if it is not correct.
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