Filter
Top Products
Port Monitor Commands 205
Port Monitor Commands
port monitor
The
port monitor
Interface Configuration mode command starts a port monitoring session. To
stop a port monitoring session, use the
no
form of this command.
Syntax
port monitor
src-interface
[
rx
|
tx
]
no port monitor
src-interface
•
src-interface—
Valid Ethernet port or port-channel number.
•
rx—
Monitors received packets only. If no option specified, monitors both rx and tx.
•
tx—
Monitors transmitted packets only. If no option specified, monitors both rx and tx.
Default Configuration
The default is both
rx
and
tx
.
Command Mode
Interface Configuration mode
User Guidelines
• This command enables traffic on one port to be copied to another port, or between the source
port (src-interface) and a destination port (the port being configured). Only a single target
port can be defined per system.
• The port being monitored cannot be set faster than the monitoring port.
• The following restrictions apply to ports configured to be destination ports:
• The port cannot be already configured as a source port.
• The port cannot be a member in a port-channel.
• An IP interface is not configured on the port.
• GVRP is not enabled on the port.
• The port is not a member in any VLAN, except for the default VLAN (will automatically
be removed from the default VLAN).
• The following restrictions apply to ports configured to be source ports:
• Port monitoring Source Ports must be simple ports, and not port-channels.
• The port cannot be already configured as a destination port.
• All the frames are transmitted as either always tagged or always untagged.