Alcatel-Lucent 7750 SR OS Service Manual page 1219

The no form of the command disables debugging.
port-role
Syntax [no] port-role
Context debug>service>stp
Description
This command enables STP debugging for changes in port roles.
The no form of the command disables debugging.
port-state
Syntax [no] port-state
Context debug>service>stp
Description
This command enables STP debugging for port states.
The no form of the command disables debugging.
igmp
Syntax [no] igmp
Context debug>router
Description
This command enables debugging for IGMP.
The no form of the command disables debugging.
interface
Syntax [no] interface [ip-int-name | ip-address]
Context debug>router>igmp
Description
This command enables debugging on the IGMP interface.
The no form of the command disables debugging.
Parameters
ip-int-name — Only displays the information associated with the specified IP interface name.
ip-address — Only displays the information associated with the specified IP address.
Sample Output
A:FA# debug router 100 igmp interface
A:FA#
A:FA# show debug
debug
7750 SR OS Services Guide
Virtual Private Routed Network Services
Page 1219