Administrator Guide

Port Monitoring
The Aggregator supports user-configured port monitoring. See Configuring Port Monitoring for the
configuration commands to use.
Port monitoring copies all incoming or outgoing packets on one port and forwards (mirrors) them to another
port. The source port is the monitored port (MD) and the destination port is the monitoring port (MG).
Supported Modes
Standalone, PMUX, VLT, Stacking
Topics:
• Configuring Port Monitoring
• Important Points to Remember
• Port Monitoring
Configuring Port Monitoring
To configure port monitoring, use the following commands.
1 Verify that the intended monitoring port has no configuration other than no shutdown, as shown in the
following example.
EXEC Privilege mode
show interface
Dell(conf-if-te-0/1)#show config
!
interface TenGigabitEthernet 0/1
no shutdown
2 Create a monitoring session using the command monitor session from CONFIGURATION mode, as
shown in the following example.
CONFIGURATION mode
monitor session
Dell(conf)#monitor session 1
Dell(conf-mon-sess-1)#source tengig 0/1 destination tengig
0/8 direction both
3 Specify the source and destination port and direction of traffic, as shown in the following example.
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