Enable Mirroring To Port - Extreme Networks ExtremeWare XOS Command Reference Manual

Commands for Configuring Slots and Ports on a Switch

enable mirroring to port

enable mirroring to port [<port>] [tagged | untagged]
Description
Dedicates a port on the switch to be the mirror output port, or the monitor port.
Syntax Description
port
tagged
untagged
Default
Disabled.
Usage Guidelines
Port-mirroring configures the switch to copy all traffic associated with one or more ports to a monitor
port on the switch. The monitor port can be connected to a network analyzer or RMON probe for
packet analysis. The switch uses a traffic filter that copies a group of traffic to the monitor port. The
traffic filter can be defined based on one of the following criteria:
• Physical port—All data that traverses the port, regardless of VLAN configuration, is copied to the
monitor port.
• VLAN—All data to and from a particular VLAN, regardless of the physical port configuration, is
copied to the monitor port.
• Virtual port—All data specific to a VLAN on a specific port is copied to the monitor port.
Up to 16 mirroring filters and one monitor port can be configured on the switch. After a port has been
specified as a monitor port, it cannot be used for any other function. Frames that contain errors are not
mirrored.
NOTE
Beginning with ExtremeWare XOS 11.0, the monitor port must be explicitly configured for tagged or
untagged. Mirroring configurations prior to 11.0 are restored as tagged monitor ports only.
The traffic egressing the monitor port can either be tagged or untagged. If the mirroring is enabled as
tagged on the monitor port, all traffic egressing the monitor port is tagged. In this case, even if some
untagged ports send mirrored traffic to the monitor port, that traffic also egresses the monitor port
tagged. And, if mirroring is enabled as untagged on the monitor port, all traffic egressing the monitor
port is untagged, including mirrored tagged packets.
When you upgrade to 11.0, all restored mirroring configurations are tagged monitor ports only.
206
Specifies the mirror output port.
Specifies the mirror output, or monitor, port is tagged.
Specifies the mirror output, or monitor, port is untagged.
ExtremeWare XOS 11.0 Command Reference Guide