Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring Multicast Layer 2 (Rev. 03)
IGMP Snooping
© 2008 Foundry Networks, Inc.
Page 15 of 43
Argument Description
PORT-LIST
Port list, of the form
u[[/s[/p]]][-u[[/s[/p]]][,u[[/s[/p]]]]]...
Where
u
,
s
and
p
represent a 1- or 2-digit unit number, slot number and port
number respectively. The user can specify:
•
u
for all ports on unit number
u
;
•
u/s
for all ports on slot number
s
on unit
u
;
•
u/s/p
for port
p
on slot
s
on unit
u
;
•
a hyphenated range (blank spaces are not allowed);
•
a list, separated by commas (blank spaces are not allowed).
Example
device-name
(config)#
ip igmp snooping for-all 1/1/1-1/1/5
Setting Forbidden Ports
The
ip igmp snooping forbidden
command, in Global Configuration mode, forbids forwarding of
the entire multicast traffic via the specified ports. To enable the forwarding on the ports, use the
no
form of this command.
By default, forwarding is enabled.
Command Syntax
device-name
(config)#
ip igmp snooping forbidden PORT-LIST
device-name
(config)#
no ip igmp snooping forbidden PORT-LIST
Argument Description
PORT-LIST
Port list, of the form
u[[/s[/p]]][-u[[/s[/p]]][,u[[/s[/p]]]]]...
Where
u
,
s
and
p
represent a 1- or 2-digit unit number, slot number and port
number respectively. The user can specify:
•
u
for all ports on unit number
u
;
•
u/s
for all ports on slot number
s
on unit
u
;
•
u/s/p
for port
p
on slot
s
on unit
u
;
•
a hyphenated range (blank spaces are not allowed);
•
a list, separated by commas (blank spaces are not allowed).
Example
device-name
(config)#
ip igmp snooping forbidden 1/1/1-1/1/5
Setting IGMP Snooping Timers
The
ip igmp snooping router-timers
command, in Global Configuration mode, enables the user
to configure the query packet intervals sent to the host port when performing
leave
snooping. The
command sets the Multicast router timer variables to synchronize the IGMP Snooping.
By default, when the device receives a Leave packet from a host that is a member of a certain
group, it performs the following steps repeatedly
Robustness
times: