363-206-295
Maintenance Description
Issue 1
December 1997
9-35
to 10 seconds of no SES or line signal failure. If there is an unprotected circuit
pack failure, UAS are counted from within 1 second of circuit pack failure to within
1 second of circuit pack recovery. UAS are counted and thresholded
independently for the service and protection lines.
Line Protection Switch Counts
9
Line protection switch count is the count of the number of protection switches
FROM the working line. The count is independently counted and thresholded for
both the service and the protection line. This does not apply to main OC-N lines in
ring releases.
EC-1 Line Parameters
9
Performance Monitoring Enabling
9
Collection of line parameters for EC-1 low-speed interfaces is initiated when a slot
is equipped with a 3STS1E circuit pack and the port is in the IS state. Parameters
continue to be available in reports and generate appropriate TCAs until the input
signal is removed and the
update
command or the UPD/INIT button is pressed.
Alternatively, the EC-1 low-speed line parameters can be disabled by setting the
EC-1 port state to NMON using the
set-state-ec1
command.
Line Coding Violations (B2 Parity)
9
To monitor the performance of the EC-1 line, the line BIP-8 (B2 parity) is
calculated, written, and checked for errors. The line B2 parity violation counter is
incremented for each line BIP error detected. Each line BIP-8 can detect up to
eight errors per STS-1 frame. CVs are not counted during seconds that contain a
line AIS, LOS, LOF, or during a UAS. The B2 parity violations are counted and
thresholded for the EC-1 line.
Errored Seconds (ES)
9
An "errored second" is a second in which one or more B2 parity violations are
detected. An ES "type A" is a second in which exactly one B2 parity violation is
detected. An ES "type B" is a second in which more than one, and less than 12,
B2 parity violations are detected. Seconds that are UAS are not counted as ES. A
second that contains a line AIS, LOS, LOF, or is a UAS is not counted as a type A
or type B ES. All three of these parameters are counted and thresholded for the
EC-1 line.
Содержание DDM-2000 OC-12
Страница 1: ...363 206 295 Issue 1 December 1997 DDM 2000 OC 12 Multiplexer Release 7 0 User Service Manual Volume I ...
Страница 37: ...Tables xxxviii Issue 1 December 1997 A A SONET Overview A 1 SONET Payloads A 18 A 2 SONET Transport Rates A 19 ...
Страница 506: ...INS PROG 8 of 8 Page INS PROG COMMANDS RELATED rtrv eqpt rtrv ne OC 12 DDM 2000 1997 December 1 Issue 11 89 ...
Страница 528: ...RTRV ATTR ALM 2 of 2 Page RTRV ATTR ALM COMMANDS RELATED set attr alm OC 12 DDM 2000 1997 December 1 Issue 11 111 ...
Страница 565: ...RTRV OC3 3 of 3 Page RTRV OC3 COMMANDS RELATED rtrv sync 11 148 1997 December 1 Issue OC 12 DDM 2000 ...
Страница 664: ...SET FEAT 3 of 3 Page SET FEAT COMMANDS RELATED rtrv feat OC 12 DDM 2000 1997 December 1 Issue 11 247 ...
Страница 766: ... Ctl T TOGGLE 2 of 2 Page Ctl T TOGGLE COMMANDS RELATED logout rlgn OC 12 DDM 2000 1997 December 1 Issue 11 349 ...
Страница 847: ...Multiplexer OC 12 DDM 2000 7 Release TARP TOP Manual User Service II Volume 363 206 295 1 Issue 1997 December ...
Страница 867: ...363 206 295 TOP Maintenance and Operation BLANK LEFT INTENTIONALLY PAGE THIS 12 1997 December 1 Issue ...
Страница 1145: ...Order Circuit 363 206 295 NTP 029 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1146: ...Order Circuit 363 206 295 NTP 030 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1182: ...Turnup System 363 206 295 NTP 033 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1243: ...Clearing Trouble 363 206 295 TAP 107 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1393: ...363 206 295 DLP 513 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1394: ...363 206 295 DLP 514 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1456: ...363 206 295 DLP 523 7 of 7 Page 1997 December 1 Issue OC 12 via Access Broadcast Video for Cross connections of Example 4 Figure ...
Страница 1465: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 2 Page Schematic Ring Virtual ATM Sample 1 Figure ...
Страница 1469: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 6 Page Ring Virtual ATM OC 12 DDM 2000 for Cross connections of Example 4 Figure ...
Страница 1565: ...363 206 295 DLP 543 6 of 5 Page 1997 December 1 Issue Network Broadcast Video of Test Transmission 2 Figure ...
Страница 1566: ...DLP 543 363 206 295 1997 December 1 Issue 6 of 6 Page Network Ring Virtual ATM of Test Transmission 3 Figure ...