NEC IP8800/S2400 Series Troubleshooting Manual page 150

3.
Troubleshooting Functional Failures in Operation
Table 3-47: Check Items When Double-relay Continues
No. Troubleshooting Steps and Command
1 Check the PIM neighboring information on the interface of the
network having multiple routers.
show ipv6 pim neighbor
88
Action
If the neighboring router is not displayed, check the
following:
• Confirm that PIM is running on the interface connected to
the neighboring router using the show ipv6 pim
command with "interface" parameter specified.
• Confirm in the configuration that suppression of protocol
packet relay by filtering, etc. is not provided.
• Verify the settings of the neighboring router.