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Using a port mirror for analysis – Digital Networks North America DNswitch 800 User Manual

Page 56

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46 Configuring and Monitoring the Switch

DNswitch 800

Using a Port Mirror for Analysis

You can mirror traffic from any source port to a target port for real-time
analysis. You can then attach a logic analyzer or RMON probe to the

target port and study the traffic crossing the source port in a completely

unobtrusive manner. When mirroring port traffic, note that the target port
must be configured in the same VLAN and be operating at the same

duplex mode as the source port (see VLAN Static List on page 33).

You can use the port mirror configuration screen to designate a single port
pair for mirroring as shown below:

Figure 3-39. Mirror Port Configuration

Parameter

Description

Status

Enables/disables port mirroring.

Mirror Source Port

The port whose traffic will be monitored.

Mirror Target Port

The port that will duplicate or “mirror” all the traffic happening on
the monitored port.