Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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3.11.4 No IPv6 routing information exists in the VRF
If routing information for each protocol cannot be found in the routing information obtained by the
Switch, isolate the cause of the problem according to the failure analysis method described in the
following table.
Table 3-44: Failure analysis method for VRF
5 Check whether the route is filtered in the
configuration.
Check whether the neighboring router is advertising the BGP4+
route.
If the configuration is not correct, modify the configuration. For
details about the procedure for checking the filter configuration
information, see 3.25.1 Checking the filters and QoS
configuration information.
No. Items to check and commands Action
1 Check whether the number of routes
in VRF is equal to or larger than the
maximum value specified in the
configuration.
show ipv6 vrf
If the number of routes is equal to or larger than the maximum value,
go to No. 2.
If the number of routes is less than the maximum value, perform the
failure analysis for the protocol for the route that does not exist.
For RIPng, see 3.11.1 RIPng routing information cannot be found.
For OSPFv3, see 3.11.2 OSPFv3 routing information cannot be found.
For BGP4+, see 3.11.3 No BGP4+ routing information exists.
2 Check the maximum number of
routes in VRF specified in the
configuration.
Increase the maximum number, or reduce the number of routes by, for
example, aggregating the routes.
No. Items to check and commands Action