H3C S5500-EI User Manual

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With the IGMP report suppression function enabled, within each query interval, the Layer 2 switch
forwards only the first IGMP report for the multicast group to the Layer 3 device. It does not forward the
subsequent IGMP reports for the same multicast group. This helps reduce the number of packets being
transmitted over the network.
IMPORTANT:
On an IGMP snooping proxy, IGMP membership reports are suppressed if the entries for the
correspondin
g
g
roups exist in the forwardin
g
table, no matter the suppression function is enabled or not.
To configure IGMP report suppression:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IGMP-snooping view.
igmp-snooping N/A
3. Enable IGMP report
suppression.
report-aggregation Enabled by default
Setting the maximum number of multicast groups that a port can
join
To regulate multicast traffic on a port, configure the maximum number of multicast groups that the port
can join.
When you configure this maximum number, if the number of multicast groups the port has joined exceeds
the configured maximum value, the system deletes all the forwarding entries for the port from the IGMP
snooping forwarding table, and the hosts on this port join multicast groups again until the number of
multicast groups that the port joins reaches the maximum value. When the port joins a multicast group,
if the port has been configured as a static member port, the system applies the configurations to the port
again. If you have configured simulated joining on the port, the system establishes corresponding
forwarding entry for the port after receiving a report from the simulated member host.
To set the maximum number of multicast groups that a port can join:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet
interface view, Layer 2
aggregate interface view, or
port group view.
• Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.

H3C S5500-EI Specifications

General

Brand	H3C
Model	S5500-EI
Category	Switch
Language	English