Allied-telesis AT-S62 Bedienungsanleitung PDF herunterladen (Seite 151)

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AT-S62 Menus Interface User’s Guide

Section I: Basic Operations 151

Port Mirroring Overview

The port mirroring feature allows you to unobtrusively monitor the

traffic being received and transmitted on one or more ports on a switch

by having the traffic copied to another switch port. You can connect a

network analyzer to the port where the traffic is being copied and

monitor the traffic on the other ports without impacting network

performance or speed.

The port(s) whose traffic you want to mirror is called the source port(s).

The port where the traffic is copied to is called the destination port.

Observe the following guidelines when you create a port mirror:

❑ You can select only one destination port.

❑ You can select more than one source port. However, the more

ports you mirror, the less likely the destination port will be able to

handle all the traffic. For example, if you mirror the traffic of six

heavily active ports, the destination port is likely to drop packets,

meaning that it will not provide an accurate mirror of the traffic of

the six source ports.

❑ You can mirror either the ingress or egress traffic of the source

ports, or both.

❑ The source and destination ports must be located on the same

switch.

❑ For AT-8550GB Series switches, the source ports and the

destination port must be located within the same port group. The

port groups are:

— Ports 1 to 24 and 49

— Ports 25 to 48 and 50

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