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Troubleshooting OSPFv3
The system provides several tools to troubleshoot OSPFv3 operation on the switch. This section describes typical, OSPFv3
troubleshooting scenarios.
NOTE: The following troubleshooting section is meant to be a comprehensive list, but only to provide some examples of
typical troubleshooting checks.
● Have you enabled OSPF globally?
● Is the OSPF process active on the interface?
● Are the adjacencies established correctly?
●
Did you configure the interfaces for Layer 3 correctly?
● Is the router in the correct area type?
● Did you include the routes in the OSPF database?
● Did you include the OSPF routes in the routing table (not just the OSPF database)?
Some useful troubleshooting commands are:
● show ipv6 interfaces
● show ipv6 protocols
● debug ipv6 ospf events and/or packets
● show ipv6 neighbors
● show ipv6 routes
Viewing Summary Information
To get general route, configuration, links status, and debug information, use the following commands.
● View the summary information of the IPv6 routes.
EXEC Privilege mode
show ipv6 route [vrf vrf-name] summary
● View the summary information for the OSPFv3 database.
EXEC Privilege mode
show ipv6 ospf [vrf vrf-name] database
● View the configuration of OSPFv3 neighbors.
EXEC Privilege mode
show ipv6 ospf [vrf vrf-name] neighbor
● View debug messages for all OSPFv3 interfaces.
EXEC Privilege mode
debug ipv6 ospf [vrf vrf-name] [event | packet] {type slot/port}
○ For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port information.
○ For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
○
For a port channel interface, enter the keywords port-channel then a number.
○ For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
Configuration Task List for OSPFv3 (OSPF for IPv6)
This section describes the configuration tasks for Open Shortest Path First version 3 (OSPF for IPv6) on the switch.
The configuration options of OSPFv3 are the same as those options for OSPFv2, but you may configure OSPFv3 with
differently labeled commands. Specify process IDs and areas and include interfaces and addresses in the process. Define areas
as stub or totally stubby.
The interfaces must be in IPv6 Layer-3 mode (assigned an IPv6 IP address) and enabled so that they can send and receive
traffic. The OSPF process must know about these interfaces. To make the OSPF process aware of these interfaces, assign
them to OSPF areas.
Open Shortest Path First (OSPFv2)
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