Huawei Quidway S5600 Series Operation Manual page 426

Operation Manual – Multicast Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
group-specific query message. If no response is received in a given period, it then
removes the port from the multicast group.
If IGMP fast leave processing is enabled, when receiving an IGMP Leave message,
IGMP Snooping immediately removes the port from the multicast group. When a port
has only one user, enabling IGMP fast leave processing on the port can save
bandwidth.
Table 2-7 Enable the IGMP fast leave processing
Operation
Enter system view
Enter Ethernet port view
Enable the fast leave from
the specific VLAN for a
port
2.2.4 Configuring IGMP Snooping Filtering ACL
You can configure multicast filtering ACLs on the switch ports connected to user ends
so as to use the IGMP Snooping filter function to limit the multicast streams that the
users can access. With this function, you can treat different VoD users in different ways
by allowing them to access the multicast streams in different multicast groups.
In practice, when a user orders a multicast program, an IGMP report message is
generated. When the message arrives at the switch, the switch examines the multicast
filtering ACL configured on the access port to determine if the port can join the
corresponding multicast group or not. If yes, it adds the port to the forward port list of
the multicast group. If not, it drops the IGMP report message and does not forward the
corresponding data stream to the port. In this way, you can control the multicast
streams that users can access.
Make sure that ACL rules have been configured before configuring this feature.
Table 2-8 Configure IGMP Snooping filtering ACL
Operation
Enter system view
Command
system-view
interface interface-type
interface-number
igmp-snooping
fast-leave
vlan-list ]
Command
system-view
Huawei Technologies Proprietary
2-8
Chapter 2 IGMP Snooping Configuration
Description
—
—
Optional
By default, the fast leave
[ vlan
from the multicast group
for a port is disabled.
Description
—