Displaying And Maintaining Igmp Snooping - 3Com 4210 PWR Configuration Manual

Configuring a VLAN Tag
for Query Messages
Displaying and
Maintaining IGMP
Snooping
Table 158 Configure a port as a simulated group member
Operation
Configure the current port as a
simulated multicast group
member
c
Caution:
Before configuring a simulated host, enable IGMP Snooping in VLAN view first.
■
The port to be configured must belong to the specified VLAN; otherwise the
■
configuration does not take effect.
You can use the source-ip source-address command to specify a multicast
■
source address that the port will join as a simulated host. This configuration
takes effect when IGMPv3 Snooping is enabled in the VLAN.
By configuring the VLAN in which IGMP general and group-specific queries
forwarded and sent by IGMP Snooping switches are transmitted and by
configuring the VLAN mapping function, you can enable multicast packet
forwarding between different VLANs In a Layer-2 multicast network environment.
For description about VLAN mapping, see "VLAN-VPN"
Table 159 Configure VLAN Tag for query message
Operation
Enter system view
Enable IGMP Snooping
Configure a VLAN tag
for query messages
n
It is not recommended to configure this function while the multicast VLAN
function is in effect.
After the configuration above, you can execute the following display commands in
any view to verify the configuration by checking the displayed information.
You can execute the reset command in user view to clear the statistics information
about IGMP Snooping.
Display and maintain IGMP Snooping
Table 160
Operation
Display the current IGMP
Snooping configuration
Display IGMP Snooping
message statistics
Display the information about
IP and MAC multicast groups
in one or all VLANs

Displaying and Maintaining IGMP Snooping

Command
igmp host-join
group-address [source-ip
source-address ] vlan
vlan-id
Command
system-view
igmp-snooping enable
igmp-snooping
vlan-mapping vlan
vlan-id
Command
display igmp-snooping
configuration
display igmp-snooping
statistics
display igmp-snooping
group [ vlan vlanid ]
Remarks
Optional
Simulated joining is disabled
by default.
Remarks
-
Required
By default, IGMP Snooping is disabled
Required
Remarks
You can execute the display
commands in any view.
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