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38 VH-2402S User Interface VH-2402S
Using a Mirror Port 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
speed as the source port (see Configuring Virtual LANs on page 49). If the
target port is operating at a lower speed, the source port will be forced to
drop its operating speed to match that of the target port.
You can use the Mirror Port Configuration screen to designate a single
port pair for mirroring as shown below:
Figure 2-28. Mirror Port Configuration
Vertical Horizon Local Management -- VH-2402S
Mirror Port Configuration
Mirror Source Port : Unit 1
Port 1
Mirror Target Port : Unit 1
Port 2
Status : DISABLED
<APPLY> <OK> <CANCEL>
Use <TAB> or arrow keys to move, other keys to make changes.
Parameter Description
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.
Status Enables or disables the mirror function.