CLI Guide

Switch Management Commands 2147
type, packet length, and the interface on which the packet is received or
transmitted is displayed on the console. Use the “no” form of this command
to disable IGMP traces.
Syntax
debug ip igmp packet [receive | transmit]
no debug ip igmp packet [receive | transmit]
Default Configuration
Display of IGMP traces is disabled by default.
Command Mode
Privileged Exec mode.
User Guidelines
Debug output should be enabled with caution. Switch behavior may be
adversely affected by the additional processing load incurred from enabling
debug.
Example
console#debug ip igmp packet
debug ip mcache
Use the debug ip mcache command for tracing MDATA packet reception and
transmission. The receive option traces only received data packets and the
transmit option traces only transmitted data packets. When neither keyword
is used in the command, then all data packet traces are dumped. Vital
information such as source address, destination address, packet length, and
the interface on which the packet is received or transmitted is displayed on
the console. Use the “no” form of this command to disable MDATA tracing.
Syntax
debug ip mcache packet [receive | transmit]
no debug ip mcache packet [receive | transmit]