Configuring an Observing Port

An observing port copies the traffic on the mirroring port to a packet analyzer. To prevent adverse impacts on running services, do not use the observing port as a service port.

Procedure

Run system-view
The system view is displayed.
Run interface interface-type interface-number
The interface view is displayed.
Run port-observing observe-index observe-index [ without-filter ]
The observing port is configured.

The observing port does not filter or modify frames. At the inbound side, a frame is mirrored before the header is removed; at the outbound side, a frame is mirrored after the frame is modified.
(Optional) Run port-observing with-linklayer-header
The observing port to mirror packets including the link layer header is configured.
(Optional) Run port-observing pop-label { one | two | all } [ sub-interface extend ]
The observing interface to remove labels from MPLS packets is enabled.

The port-observing pop-label and port-observing dest-mac commands are mutually exclusive.
(Optional) Run port-observing dest-mac dest-mac-address
The destination MAC address is configured on the observing port.

The port-observing dest-mac dest-mac-address and port-observing pop-label commands are mutually exclusive.
Run commit
The configuration is committed.