Operation Manual

Table Of Contents
VigorSwitch G1280 User’s Guide
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IGMP Snooping State –Choose Enable to enable IGMP snooping
function.
Router Ports Auto Learn – Set the enabling status of IGMP
router port learning. Choose Enable to learn router port by
IGMP query.
Query Robustness – Set a number which allows tuning for the
expected packet loss on a subnet.
Query Interval – Set the interval of querier send general
query.
Query Response Interval – It specifies the maximum allowed
time before sending a responding report in units of 1/10
second.
Last Member Query Counter – After quering for specified
times (defined here) and still not receiving any response from
the subscribed member, VigorSwitch will stop transmitting
data to the related GE port(s).
Last Member Query Interval – The maximum time interval
between counting each member query message with no
responses from any subscribed member.
Immediate Leave – Leave the multicast group immediately on
the port & VLAN where leave message is sent from, regardless
there is still a subscribed member or not. Click Enable to
enable Fastleave function.
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