qqqq number of all outgoing maintenance messages sent on the D-
channel
rrrr average number of outgoing bytes per message
ssss accumulated real time a D-channel was busy transferring outgoing
messages in half-millisecond units (Divide the reported number by
2 for a result in milliseconds. For example: divide a reported
number of 200 by 2 for a result of 100 milliseconds.)
tttt number of times a message with no End of Message (EOM) mark
was received
uuuu accumulated real time the D-channel was down since the last
report in units of 2 seconds. For example, if the value is 10, the
down time is 20 seconds.
vvvv peak incoming link usage (given as a percentage of the link
capacity) over a 5-second period
wwww peak outgoing link usage (given as a percentage of the link
capacity) over a 5-second period
xxxx time (in seconds) since the MSDL D-channel traffic was last
cleared
tat2 total number of successful anti-tromboning operations since the
D-channel traf
fic was last cleared
CNG_NB number of optimization requests with the congestion trigger
CNG_NEW number of optimization successful with the congestion trigger: a
new path is used
CNG_OLD number of optimization successful with the congestion trigger but
the old path has been retained
CON_NB number of optimization requests with the connected trigger
CON_NEW number of optimization successful with the connected number
trigger: a new path is used
CON_OLD number of optimization successful with the connected number
trigger but the old path has been retained
DIV_NB number of optimization requests with the diversion trigger
DIV_NEW number of optimization successful with the diversion trigger: a new
path is used
DIV_OLD number of optimization successful with the diversion trigger but the
old path has been retained
FLOW To prevent any application from tying up buffer resources due to
its abnormal conditions or misbehavior, a flow control mechanism
is defined in the system and at the card level. This flow control
mechanism applies only to the normal interface (receive and
transmit ring buffers, not the expedited interface).
DCH traffic (LD 2)
ISDN Primary Rate Interface Maintenance November 2011 67