Troubleshooting Mld; No Member Information Exists On The Receiver-Side Router; Inconsistent Membership Information On The Routers On The Same Subnet - HP FlexFabric 5950 series Configuration Manual

[SwitchB-Vlan-interface200] quit
Verifying the configuration
# Display IPv6 multicast group membership information maintained by the MLD proxy on Switch B.
[SwitchB] display mld proxy group
MLD proxy group records in total: 1
Vlan-interface100(FE80::16:1):
MLD proxy group records in total: 1
Group address: FF1E::1
Member state: Delay
Expires: 00:00:02

Troubleshooting MLD

No member information exists on the receiver-side router

Symptom
When a host sends a message to announce that it is joining IPv6 multicast group G, no member
information of multicast group G exists on the immediate router.
Solution
To resolve the problem:
1. Use the display mld interface command to verify that the networking, interface connections,
and IP address configuration are correct.
2. Use the display current-configuration command to verify that the IPv6 multicast routing is
enabled. If it is not enabled, use the ipv6 multicast routing command in system view to enable
IPv6 multicast routing. In addition, verify that MLD is enabled on the associated interfaces.
3. Use the display mld interface command to verify that the MLD version on the interface is
lower than that on the host.
4. Use the display current-configuration interface command to verify that no IPv6 multicast
group policies have been configured to filter MLD reports for IPv6 multicast group G.
5. If the problem persists, contact Hewlett Packard Enterprise Support.
Inconsistent membership information on the routers on the
same subnet
Symptom
Different memberships are maintained on different MLD routers on the same subnet.
Solution
To resolve the problem:
1. Use the display current-configuration command to verify the MLD information on the
interface. Make sure the routers on the subnet have the same MLD settings on their interfaces.
2. Use the display mld interface command on all routers on the same subnet to check the MLD
timers for inconsistent configurations.
3. Use the display mld interface command to verify that all routers are running the same MLD
version.
4. If the problem persists, contact Hewlett Packard Enterprise Support.
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