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Chapter 41 Commands for Mirroring
Configuration
41.1 monitor session source interface
Command: monitor session <session> source {interface <interface-list> | cpu} {rx|
tx| both}
no monitor session <session> source {interface <interface-list> | cpu}
Function: Specify the source interface for the mirror. The no form command will disable
this configuration.
Parameters: <session> is the session number for the mirror. Currently only 1 is
supported. <interface-list> is the list of source interfaces of the mirror which can be
separated by ―-‖ and ―;‖. cpu means the CPU on the board to be the source of the mirror
for debugging. Datagram received by or sent by the CPU. rx means to filter the datagram
received by the interface, while tx for the datagram sent out, and both means both of
income and outcome datagram.
Command mode: Global mode
Usage Guide: This command is used to configure the source interfaces for the mirror. It is
not restricted the source interface of the mirror on the switch. The source can be one
interface, or can be multiple interfaces. Both of the income and outcome datagram can be
mirrored, or they can be mirrored selectively. If no [rx | tx | both] is specified, both are
made to be the default. When multiple interfaces are mirrored, the direction of the mirror
can be different, but they should be configured separately.
Example: Configure to mirror the datagram sent out by interface 1/1-4 and to mirror the
datagram received by interface 1/5
Switch(config)#monitor session 1 source interface ethernet 1/1-4 tx
Switch(config)#monitor session 1 source interface ethernet1/5 rx
41.2 monitor session source interface access-list
Command: monitor session <session> source {interface <interface-list>}
access-list <num> {rx|tx|both}
no monitor session <session> source {interface <interface-list>}
access-list <num>