Enterasys Networks 1G58x-09 Manuel D’Utilisation

The Matrix E1 allows you to mirror the traffic being switched on one or more ports for the purposes 
of network traffic analysis and connection assurance. When port mirroring is enabled, one port 
becomes a monitor port for other ports within the device. When configuring port mirroring on this 
device, note that

A given source port may only be mirrored to one target port. However, multiple source ports 
may be mirrored to the same target port.

Only one port per port grouping can be designated as a source port. For more information on port 
grouping designations, refer to 

A maximum of 12 source/target port pairs may be configured.

Traffic mirrored includes both received and transmitted packets.

Unknown protocol packets and broadcast packets can be forwarded out the monitor port when 
mirroring is enabled.

None of the ports in a trunk or LAG should be configured as a mirror source port or mirror target 
port. If a port with an active LACP link is configured as a mirror source or target port, the LACP 
link will be brought down. Note that all eight ports in the same port group are affected—once 
one port in the group is mirrored, any other LACP ports in the same group will be removed from 
the trunk. For more information about link aggregation, refer to 

For details on how to specify port designation in the CLI syntax, refer to 

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.