Verilink WANsuite 5165 (34-00301.H) Product Manual - Manual (Page 37)

W e b S e r v e r I n t e r f a c e 3-7
Internal – The unit’s internal frequency standard (T1 1.544 Mbps ± 50 bps)
is used for all timing.
Network 1, Network 2 – Timing is derived from the Network port recovered
clock.
Serial 1, Serial 2 – Timing is derived from the Serial port recovered clock.
Zero Suppression Determines whether ones density insertion is activated after 15 zeros. This
parameter is ignored if the Coding parameter is set to “B8ZS.”
Values: Disable, Enable
Default: Disable
PRM Enable Lets you establish which performance messaging standard will be employed
to initiate Performance Report Message (PRM) functions. Setting this field to
“Enable” instructs the unit to use ANSI T1.403, which sends a PRM once
every second. Setting this field to “Disable” instructs the unit to use AT&T
TR54016, which provides performance reporting on request only.
Values: Disable, Enable
Default: Disable
Learned DS0 Rate Specifies the rate at which each discovered DS0 will be set.
Values: As 56K/64K
Default: As 64K
NOTICE: The unit will search for active DS0s for a maximum of 7 seconds if
learning “As 64k” and for 30 seconds if learning “As 56K.”
Error Status and Alarm Thresholds Table
The unit can be programmed to generate an alarm condition based on a
specific level of performance degradation. The Network screens present a
table that provides current error status and alarm threshold information.
Acceptable alarm thresholds are set for periods of 15 minutes (900 seconds)
and sampled every second. The error types listed in the following paragraphs
can be preset to a value between 0 and 900 seconds. Setting a field to “0”
(zero) disables the alarm on that statistic. To effectively disable alarm
reporting, set all fields to “0” (zero).
The 15-minute time frame is not based on the TR 54016 or T1.403 interval
boundaries, but is a time window based on the accumulated counts over the
previous fifteen 1-minute intervals. In all cases, if the number of actual
network errored seconds in the previous 15 minutes reaches the preset
threshold for the specified error type, an alarm condition is declared.