3Com S7906E Command Reference Manual page 1483

View
Ethernet interface view, Layer 2 aggregate interface view, port group view
Default Level
2: System level
Parameters
acl6-number: Basic or advanced IPv6 ACL number, in the range of 2000 to 3999. The IPv6 source
address or address range specified in the advanced IPv6 ACL rule is the IPv6 multicast source
address(es) specified in MLDv2 reports, rather than the source address in the IPv6 packets. The
system assumes that an MLDv1 report or an MLDv2 IS_EX or TO_EX report that does not carry an IPv6
multicast source address carries an IPv6 multicast source address of 0::0.
vlan vlan-list: Defines one or multiple VLANs. You can provide up to 10 VLAN lists, by each of which
you can specify an individual VLAN in the form of vlan-id, or a VLAN range in the form of start-vlan-id to
end-vlan-id, where the end VLAN ID must be greater than the start VLAN ID. The effective range of a
VLAN ID is 1 to 4094.
Description
Use the mld-snooping group-policy command to configure an IPv6 multicast group filter on the
current port(s).
Use the undo mld-snooping group-policy command to remove the configured IPv6 multicast group
filter on the current port(s).
By default, no IPv6 multicast group filter is configured on a port, namely a host can join any valid IPv6
multicast group.
Note that:
If you do not specify any VLAN when using this command in Ethernet interface view or Layer 2
aggregate interface view, the command will take effect for all VLANs the interface belongs to; if you
specify a VLAN or multiple VLANs, the command will take effect only if the interface belongs to the
specified VLAN(s).
If you do not specify any VLAN when using this command in port group view, the command will
take effect on all the ports in this group; if you specify a VLAN or multiple VLANs, the command will
take effect only on those ports in this group that belong to the specified VLAN(s).
If the specified ACL does not exist or the ACL rule is null, all IPv6 multicast groups will be filtered
out.
You can configure different IPv6 ACL rules for each port in different VLANs; for a given VLAN, a
newly configured IPv6 ACL rule will override the existing one.
Related commands: group-policy.
Examples
# Apply ACL 2000 as an IPv6 multicast group filter on Ethernet 2/0/1 in VLAN 2.
<Sysname> system-view
[Sysname] interface ethernet 2/0/1
[Sysname-Ethernet2/0/1] mld-snooping group-policy 2000 vlan 2
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