Configuring Port Mirroring - Dell PowerConnect J-EX4200-24T Software Manual

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
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Configuring Port Mirroring

Configuring Port Mirroring to Analyze Traffic (CLI Procedure)
3260
You can verify the port mirror analyzer is configured as expected using the
command. To view previously created analyzers that are disabled, go to the J-Web
interface.
user@switch> show analyzer
Analyzer name
Output VLAN
Mirror ratio
Loss priority
Ingress monitored interfaces : ge-0/0/0.0
Ingress monitored interfaces : ge-0/0/1.0
This output shows that the
packet, the default), a loss priority of high (set this option to high whenever the analyzer
output is to a VLAN), is mirroring the traffic entering
the mirrored traffic to the analyzer called
Example: Configuring Port Mirroring for Local Monitoring of Employee Resource Use
on J-EX Series Switches on page 3249
Configuring Port Mirroring to Analyze Traffic (CLI Procedure) on page 3260
Configuring Port Mirroring to Analyze Traffic (J-Web Procedure) on page 3263
Understanding Port Mirroring on J-EX Series Switches on page 3245
Configuring Port Mirroring to Analyze Traffic (CLI Procedure) on page 3260
Configuring Port Mirroring to Analyze Traffic (J-Web Procedure) on page 3263
J-EX Series switches allow you to configure port mirroring to send copies of packets to
either a local interface for local monitoring or to a VLAN for remote monitoring. You can
use port mirroring to copy these packets:
Packets entering or exiting a port
Packets entering a VLAN on J-EX4200 switches
Packets exiting a VLAN on J-EX8200 switches
We recommend that you disable port mirroring when you are not using it and select
specific input interfaces in preference to using the
amount of mirrored traffic by using a firewall filter or the
selection of packets.
NOTE: If you want to create additional analyzers without deleting the existing
analyzer, first disable the existing analyzer using the
command or the J-Web configuration page for port mirroring.
analyzer-name
: employee-monitor
: remote-analyzer
: 1
: High
analyzer has a ratio of 1 (mirroring every
employee-monitor
ge-0/0/0
remote-analyzer
all
show analyzer
and ge-0/0/1 , and sending
.
keyword. You can also limit the
keyword to mirror only a
ratio
disable analyzer