Summary Pane

Frame Number
Is the number of the frame, which simply identifies the order of traced frames.

Timestamp
Is the time in seconds since the trace began that the frame was captured.

Source
Is the transmitter of the frame, either local (the adapter) or remote (peer).

Channel/DLCI
Is a logical channel identifier, either a logical channel number in X.25 or a DLCI in frame relay.

Protocol
Is the protocol running on the logical channel, LAPB or LMI, for example.

Description
Is the type of frame or message transmitted or received.