Nortel Networks M3310 - Manual (Page 185)

Digital Telephone IP Adapter Installation and Administration Guide 185
January 2005 Administration
QLen Identifies the number of bytes currently in the
interface's outbound queue.
Collisions Identifies the number of collisions that have occurred
on the Ethernet interface while attempting to transmit
packets since the statistics were last reset.
Note: The Collisions statistic is only applicable in
half-duplex mode.
Statistic Description