Creating A Mirroring Session - Alcatel OmniSwitch 6800 Series Network Configuration Manual

Diagnosing Switch Problems
NMS Workstation
B. ...appear to come from the mirrored port
when the NMS Workstation receives them.
C. Management frames from the NMS Workstation are sent to the mirrored port....
NMS Workstation

Creating a Mirroring Session

Before port mirroring can be used, it is necessary to create a port mirroring session. The
source destination CLI command can be used to create a mirroring session between a mirrored (active)
port and a mirroring port. Up to four (4) port mirroring sessions are supported in a standalone switch or a
stack consisting of two or more switches. However, only one (1) destination port is supported per standal-
one switch or stack.
Note. To prevent the mirroring (destination) port from being blocked due to Spanning Tree changes, be
sure to specify the VLAN ID number (from 1 to 4094) for the port that will remain unblocked (protected
from these changes while port mirroring is active). This parameter is optional; if it is not specified,
changes resulting from Spanning Tree could cause the port to become blocked (default). See Unblocking
Ports (Protection from Spanning Tree) below for details.
To create a mirroring session, enter the port mirroring source destination command, and include the
port mirroring session ID number and the source and destination slot/ports, as shown in the following
example:
-> port mirroring 6 source 2/3 destination 2/4
OmniSwitch 6800 Series Network Configuration Guide
A. RMON probe frames sent from the mirroring port...
Mirrored Port
OmniSwitch
Mirrored Port
Port Mirroring Using External RMON Probe
Mirroring Port
RMON Probe
D. ...and port mirroring sends copies of the
Management frames to the mirroring port.
RMON Probe
OmniSwitch
November 2004
Port Mirroring
Mirroring Port
port mirroring
page 24-11