3Com S7902E Command Reference Manual - page 1151
1-27
send-router-alert (IGMP view)
Syntax
send-router-alert
undo send-router-alert
View
Public instance IGMP view, VPN instance IGMP view
Default Level
2: System level
Parameters
None
Description
Use the
send-router-alert
command to globally enable insertion of the Router-Alert option into IGMP
messages to be sent.
Use the
undo send-router-alert
command to globally disable insertion of the Router-Alert option into
IGMP messages to be sent.
By default, an IGMP message carries the Router-Alert option.
Related commands:
igmp send-router-alert
,
require-router-alert
.
Examples
# Globally disable the insertion of the Router-Alert option in IGMP messages to be sent in the public
instance.
[Sysname] igmp
[Sysname-igmp] undo send-router-alert
ssm-mapping (IGMP view)
Syntax
ssm-mapping
group-address
{
mask
|
mask-length
}
source-address
undo ssm-mapping
{
group-address
{
mask
|
mask-length
}
source-address
|
all
}
View
Public instance IGMP view, VPN instance IGMP view
Default Level
2: System level
Parameters
group-address
: Specifies a multicast group by its IP address, in the range of 224.0.0.0 to
239.255.255.255.
mask
: Subnet mask of the multicast group address.