FTOS Command Reference for the S-Series - Force10 Networks

debug ip igmp
• When enabled, IGMP snooping Querier periodically sends general queries with an IP
source address of the VLAN interface. If it receives a general query on any of its VLAN
member, it will check the IP source address of the incoming frame.
If the IP SA in the incoming IGMP general query frame is lower than the IP address of
the VLAN interface, then the switch disables its IGMP snooping Querier functionality.
If the IP SA of the incoming IGMP general query is higher than the VLAN IP address,
the switch will continue to work as an IGMP snooping Querier.
debug ip igmp
c e s Enable debugging of IGMP packets.
Syntax debug ip igmp [group address | interface]
Parameters
Defaults Disabled
Command Modes EXEC privilege
Command
History
To disable IGMP debugging, enter no debug ip igmp. To disable all debugging, enter
undebug all.
group-address (OPTIONAL) Enter the IP multicast group address in dotted decimal format.
interface (OPTIONAL) Enter the following keywords and slot/port or number information:
• For an 100/1000 Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For a 1-Gigabit Ethernet interface, enter the keyword GigabitEthernet
followed by the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port information.
• For VLAN, enter the keyword vlan followed by a number from 1 to 4094.
• For a Port Channel interface, enter the keyword port-channel followed
by a number:
C-Series Range: 1-128
E-Series Range: 1 to 32 for EtherScale, 1 to 255 for TeraScale
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
E-Series legacy command
FTOS Command Reference, version 7.6.1.0 573