Allied Telesis AT-9000 Series - Manual (Page 81)

Chapter 6
Setting Port Mirroring
The port mirror is a management tool that allows you to monitor the traffic
on one or more ports on the switch. It works by copying the traffic from
designated ports to another port where the traffic can be monitored with a
network analyzer. The port mirror can be used to troubleshoot network
problems or to investigate possible unauthorized network access. The
performance and speed of the switch is not affected by the port mirror.
This chapter provides a brief description of the port mirroring feature and
explains how to display and set port mirroring. See the following sections:
 “Overview” on page 82
 “Displaying Port Mirroring Settings” on page 83
 “Assigning a Destination Port” on page 85
 “Specifying Direction Type” on page 86
For more information about port mirroring, see the following chapters in the
AlliedWare Plus Management Software Command Line Interface User’s
Guide:
 Port Mirror
 Port Mirror Commands