HP PROCURVE 6208M-SX Installation And Getting Started Manual: Assigning A Mirror Port And Monitor Ports

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The <num> parameter specifies the maximum number of sub-net addresses for the entire device and can be from
1 – 512. The default is 256.
HP9300(config)# system-max subnet-per-system 512
HP9300(config)# write memory
HP9300(config)# exit
HP9300# reload
To modify a table size using the Web management interface:
Log on to the device using a valid user name and password for read-write access. The System configuration
panel is displayed.
Select the Max-Parameter link to display the Configure System Parameter Maximum Value table. This table
lists the settings and valid ranges for all the configurable table sizes on the device.
Click the Modify button next to the row for the table you want to change.
Enter the new value for the table size. The value you enter specifies the maximum number of entries the
table can hold.
Click Apply to save the changes to the device's running-config file.
Select the Save link at the bottom of the dialog. Select Yes when prompted to save the configuration change
to the startup-config file on the device's flash memory.
Click on the plus sign next to Command in the tree view to list the command options.
Select the Reload link and select Yes when the Web management interface asks you whether you really want
to reload the software. Changes to table sizes do not take effect until you reload the software.

Assigning a Mirror Port and Monitor Ports

You can monitor traffic on HP ports by configuring another port to "mirror" the traffic on the ports you want to
monitor. By attaching a protocol analyzer to the mirror port, you can observe the traffic on the monitored ports.
You can monitor input traffic, output traffic, or both. Any port can operate as a mirror port.
Monitoring traffic on a port is a two-step process:
Enable a port to act as the mirror port.
Identify the ports on which the traffic is to be monitored (the monitor ports).
You can select multiple monitor ports but only one mirror port.
NOTE: A Chassis device can mirror only the in (receive) traffic across the backplane. Thus, if the mirror and
monitor ports are on different slots, only the in traffic appears on the mirror port.
Suppose you want to diagnose the in and out traffic on port 3 on a module in slot 4 of an HP 9304M or HP 9308M,
and use port 1 in slot 4 as the mirror port. To do so, enter the following:
HP9300(config)# mirror-port e 4/1
HP9300(config)# interface e 4/3
HP9300(config-if-4/3)# monitor both
Syntax: mirror-port ethernet <portnum>
Configuring Basic Features
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