ADTRAN 1200212L1, Руководство пользователя

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Chapter 7. Network Port Configuration
7-8 DSU IQ User Manual 61200212L1-1
G
ROUP
is a special case in which all PVCs that are part of a group
must be inactive or unknown before the auto DBU process is
triggered. This special case is treated as a port failure in which DBU
call order entry applies.
DBU Call Order #
This determines the order in which a list of backup locations will be
dialed. This applies only to
auto DBU processes that are triggered
by port failure. If all DBU call order entries are set to N
ONE
, then the
first entry with a DBU phone number will be used.
CIR <Kbps>
Enter the CIR (committed information rate) in kbps for the
corresponding DLCI. The information is provided by your service
provider and must be entered for each PVC.
Seq Num Checking (SEQ #)
Set to E
NABLE
only if there are DSU IQs on both ends of the PVC.
When enabled, the DSU IQ tags each frame with a sequence
number which is then used by the remote DSU IQ to detect lost
packets. Lost packet counts are given in the Statistics menus.
Delay Measurement (PVC DELAY)
Set to E
NABLE
only if there are DSU IQs on both ends of the PVC.
When enabled, the DSU IQ periodically transmits a loopback frame
to the remote DSU IQ which is then returned to measure round trip
delay of each PVC. Minimum, maximum, and average delay
measurements are given in the Statistics menus.
Stats Option (STATS OPT)
This option prioritizes PVCs for S
TATISTICS
counts. The DSU IQ
tracks statistics for a limited number of the PVCs that pass through.
This number is determined in the
M
AX
PVC C
OUNT
field (see Max
PVC Count on page 7-6).