375
[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.