Quidway S1700 Series Ethernet Switches
Web User Manual 12 Multicast Configuration
Issue 01 (2011-11-17) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
116
2. Select Show from the Action list.
Figure 12-9 Showing Interface Settings for IGMP Snooping
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Table 12-4 Parameters of Configuring IGMP Snooping on an Interface
Title Description
VLAN ID of configured VLANs. (Range: 1-4093)
IGMP Snooping
Status
When enabled, the switch will monitor network traffic on the
indicated VLAN interface to determine which hosts want to
receive multicast traffic. This is referred to as IGMP Snooping.
(Default: Disabled)
When IGMP snooping is enabled globally, the per VLAN interface
settings for IGMP snooping take precedence. When IGMP
snooping is disabled globally, snooping can still be configured per
VLAN interface, but the interface settings will not take effect until
snooping is re-enabled globally.
Last Member Query
Interval
The interval to wait for a response to a group-specific query
message. (Range: 1-31744 tenths of a second in multiples of 10;
Default: 1 second) When a multicast host leaves a group, it sends
an IGMP leave message. When the leave message is received by
the switch, it checks to see if this host is the last to leave the group
by sending out an IGMP groupspecific query message, and starts a
timer. If no reports are received before the timer expires, the group
record is deleted, and a report is sent to the upstream multicast
router. A reduced value will result in reduced time to detect the loss
of the last member of a group or source, but may generate more
burst traffic. This attribute will take effect only if IGMP snooping
proxy reporting is enabled.
Last Member Query
Count
The number of IGMP proxy groupspecific or query messages that
are sent out before the system assumes there are no more local
members. (Range: 1-255; Default: 2) This attribute will take effect
only if IGMP snooping proxy reporting or IGMP querier is
enabled.
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