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3Com Switch 7750 Series
Command Reference Guide – Multicast Chapter 4 IGMP Configuration Commands
4-3
Value of maximum query response time for IGMP(in seconds): 10
Value of robust count for IGMP: 2
Value of startup query interval for IGMP(in seconds): 15
Value of last member query interval for IGMP(in seconds): 1
Value of query timeout for IGMP version 1(in seconds): 400
Policy to accept IGMP reports: none
Querier for IGMP: 10.153.17.99 (this router)
IGMP group limit is 256
No IGMP group reported
Table 4-2 Description on the fields of the display igmp interface command
Field Description
IGMP version IGMP version
query interval Interval of general query
querier timeout Timeout time of the querier
max query response time Maximum time of response to query
robust count
IGMP robust count, that is, the times of
sending IGMP group-specific query
packets before the IGMP querier
receives the IGMP leave packet from the
host
startup query interval
The startup interval of IGMP to send
query packets
last member query interval
The interval of sending IGMP
group-specific query packets when the
IGMP querier receives the IGMP leave
packets from the host
query timeout Query timeout in IGMP version 1
Policy to accept IGMP reports
The filtering policy of the IGMP multicast
group to control the access to IP
multicast groups
Querier for IGMP IGMP querier
IGMP group limit
Limit on the number of IGMP groups
added to the VLAN interface. The router
does not process new IGMP packets
when the number of IGMP packet
exceeds the limit
4.1.3 igmp enable
Syntax
igmp enable