3com 2816 User Guide
Mirroring Port Traffic
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Figure 22 Port Statistics Page
Figures on the Statistics page for individual ports are
not updated in real time. To view the latest statistics
for the port, click Refresh.
not updated in real time. To view the latest statistics
for the port, click Refresh.
Mirroring Port Traffic
The Switch allows you to monitor traffic going in and
out of a particular port. For traffic monitoring to work,
you need to attach a network analyzer to one port and
use it to monitor the traffic of other ports in the stack.
out of a particular port. For traffic monitoring to work,
you need to attach a network analyzer to one port and
use it to monitor the traffic of other ports in the stack.
To set up traffic monitoring, you need to set an analyzer
port (the port that is connected to the analyzer), and a
monitor port (the port that is to be monitored). Once
the pair is defined, and you enable traffic monitoring,
port (the port that is connected to the analyzer), and a
monitor port (the port that is to be monitored). Once
the pair is defined, and you enable traffic monitoring,
the Switch takes all the traffic going in and out of the
monitor port and copies it to the analyzer port.
monitor port and copies it to the analyzer port.
CAUTION: The analyzer port should have a higher
bandwidth than the monitor port. Otherwise, the Switch
may not be able to copy all traffic effectively during
periods of high traffic.
bandwidth than the monitor port. Otherwise, the Switch
may not be able to copy all traffic effectively during
periods of high traffic.
Figure 23 Traffic Monitoring Page
To set up traffic monitoring for a port:
1
Attach a network analyzer to a port.
2
Access the Web interface, and then click Port Mirroring
on the menu.
on the menu.
3
Specify the monitor port and analyzer port from the list.
■
Monitor Port — This is the port that is to be
monitored.
monitored.