Port Mirroring; Mirroring Features; Purpose; Commands - Enterasys SecureStack C2 Configuration Manual

Port Mirroring

Mode
Switch command, read‐write.
Example
This example clears the broadcast threshold limit to 14881 pps for ports 1 through 5:
C2(su)->clear port broadcast ge.1.1-5 threshold
Port Mirroring
The SecureStack C2 device allows you to mirror (or redirect) the traffic being switched on a port
for the purposes of network traffic analysis and connection assurance. When port mirroring is
enabled, one port becomes a monitor port for another port within the device.

Mirroring Features

The SecureStack C2 device supports the following mirroring features:
• Mirroring can be configured in a many‐to‐one configuration so that one target (destination)
port can monitor traffic on up to 8 source ports. Only one mirror destination port can be
configured per stack, if applicable.
• Both transmit and receive traffic will be mirrored.
• A mirroring session which is configured to be active (enabled) will be operationally active
only if both a destination port and at least one source port have been configured.
• A destination port will only act as a mirroring port when the session is operationally active. If
the mirroring session is not operationally active, then the destination port will act as a normal
port and participate in all normal operation with respect to transmitting traffic and
participating in protocols.

Purpose

To review and configure port mirroring on the device.

Commands

For information about...

show port mirroring

set port mirroring
clear port mirroring
show port mirroring
Use this command to display the source and target ports for mirroring, and whether mirroring is
currently enabled or disabled for those ports.
5-30 Port Configuration
Caution: Port mirroring configuration should be performed only by personnel who are
knowledgeable about the effects of port mirroring and its impact on network operation.
Refer to page...
5-30
5-31
5-32