R0106-HP MSR Router Series IP Multicast Command Reference(V7)

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Default
No global multicast group filter is configured. A host can join any valid multicast group.
Views
IGMP-snooping view
Predefined user roles
network-admin
Parameters
acl-number: Specifies an IPv4 basic or advanced ACL by its number in the range of 2000 to 3999.
Receiver hosts can join only the multicast groups that the ACL permits. In an IPv4 basic ACL, the source
keyword matches against the multicast group addresses in IGMP reports. In an IPv4 advanced ACL, the
source and destination keywords match against the multicast source addresses and multicast group
addresses in IGMP reports, respectively. The system determines that 0.0.0.0 is the multicast source
address for IGMPv1, IGMPv2, and IGMPv3 IS_EX and IGMPv3 TO_EX reports that do not carry any
multicast source addresses.
vlan vlan-list: Specifies a space-separated list of up to 10 VLAN items. Each item specifies a VLAN by its
ID or a range of VLANs in the form of start-vlan-id to end-vlan-id. The VLAN ID is in the range of 1 to
4094. If you do not specify any VLAN, the command takes effect on all VLANs.
Usage guidelines
If the specified ACL does not exist or the ACL rule is null, all multicast groups are filtered out.
You can configure different ACL rules on a port in different VLANs. However, for a given VLAN, a newly
configured ACL rule overrides the existing one.
This command is effective on the multicast groups that a port joins dynamically. If you configure the port
as a static member port for a multicast group, this command is not effective on the multicast group.
The global configuration is effective on all ports. It has lower priority than the configuration made on a
specific port.
Examples
# Apply ACL 2000 as a multicast group filter for VLAN 2 so that the hosts in this VLAN can join only the
m u l t i c a s t g r o u p 2 2 5.1.1.1.
<Sysname> system-view
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 225.1.1.1 0
[Sysname-acl-basic-2000] quit
[Sysname] igmp-snooping
[Sysname-igmp-snooping] group-policy 2000 vlan 2
Related commands
igmp-snooping group-policy
host-aging-time (IGMP-snooping view)
Use host-aging-time to set the global aging timer for dynamic member ports.
Use undo host-aging-time to restore the default.