Igmp Configuration Tasks - 3Com 7757 Configuration Manual

454 C 46: IGMP C
HAPTER
IGMP Configuration
Tasks
Configuring IGMP
Version
Configuring IGMP Query
Packets
ONFIGURATION
Table 362 Configuration task overview
Operation
Configure IGMP
version
Configure IGMP
query messages
Configure IGMP
multicast groups on
the interface
Configure IGMP
simulated joining
Configure IGMP
Proxy
Configure
suppression on
IGMP host report
messages
Remove the joined
IGMP groups from
the interface
Table 363 Configure IGMP version
Operation
Enter system view
Enable the multicast routing
protocol
Enter VLAN interface view
Enable IGMP on the current
interface
Configure the IGMP version of
the Layer 3 switch (router)
c
CAUTION: Each IGMP version cannot be switched to each other automatically. So
all the Layer 3 switches on a subnet must be configured to use the same IGMP
version.
IGMP general query messages
The Layer 3 switch sends IGMP general query messages to the connected network
segment periodically to get to know which multicast groups in the network
segment have members according to the returned IGMP report messages. The
multicast router also sends query messages periodically. When it receives the IGMP
join messages of a group member, it will refresh the membership information of
the network segment.
Description Related section
Optional "Configuring IGMP Version" on page 454
Optional "Configuring IGMP Query Packets" on page 454
Optional "Configuring IGMP Multicast Groups on the
Interface" on page 456
Optional "Configuring IGMP Simulated Joining" on page
458
Optional "Configuring IGMP Proxy" on page 459
Optional "Configuring Suppression on IGMP Host Report
Messages" on page 459
Optional "Removing the Joined IGMP Groups from the
Interface" on page 460
Command
system-view
multicast routing-enable
interface vlan-interface
interface-number
igmp enable
igmp version { 1 | 2 }
Description
-
Enable the multicast routing
protocol
-
Required
By default, if IP multicast
routing is enabled globally,
IGMP is enabled on all the
layer-3 interfaces
automatically.
Optional
IGMP version 2 is used by
default.