Configured Ipv6 Multicast Group Policy Fails To Take Effect - H3C S5500-SI Series Manual

Operation Manual – Multicast Protocol
H3C S5500-SI Series Ethernet Switches
II. Analysis
MLD Snooping is not enabled.
III. Solution
1) Enter the display current-configuration command to view the running status of
MLD Snooping.
2) If MLD Snooping is not enabled, use the mld-snooping command to enable MLD
Snooping globally and then use mld-snooping enable command to enable MLD
Snooping in VLAN view.
3) If MLD Snooping is disabled only for the corresponding VLAN, just use the
mld-snooping enable command in VLAN view to enable MLD Snooping in the
corresponding VLAN.

2.9.2 Configured IPv6 Multicast Group Policy Fails to Take Effect

I. Symptom
Although an IPv6 multicast group policy has been configured to allow hosts to join
specific IPv6 multicast groups, the hosts can still receive IPv6 multicast data addressed
to other groups.
II. Analysis
The IPv6 ACL rule is incorrectly configured
The IPv6 multicast group policy is not correctly applied
The function of dropping unknown IPv6 multicast data is not enabled, so unknown
IPv6 multicast data is broadcast
Certain ports have been configured as static member ports of IPv6 multicasts
groups, and this configuration conflicts with the configured IPv6 multicast group
policy.
III. Solution
1) Use the display acl ipv6 command to check the configured IPv6 ACL rule. Make
sure that the IPv6 ACL rule conforms to the IPv6 multicast group policy to be
implemented.
2) Use the display this command to check whether the correct IPv6 multicast group
policy has been applied. If not, use the mld-snooping group-policy command to
apply the correct IPv6 multicast group policy.
3) Use the display current-configuration command to whether the function of
dropping unknown IPv6 multicast data is enabled. If not, use the drop-unknown
or mld-snooping drop-unknown command to enable the function of dropping
unknown IPv6 multicast data.
4) Use the display mld-snooping group command to check whether any port has
been configured as a static member port of any IPv6 multicast group. If so, check
Chapter 2 MLD Snooping Configuration
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