363-206-295
Maintenance Description
Issue 1
December 1997
9-37
Errored Seconds (ES)
9
An "errored second" is a second in which one or more B3 parity violations are
detected. Seconds that are UAS are not counted as ES. An ES "type A" is a
second in which exactly one B3 parity violation is detected. An ES "type B" is a
second in which more than one and less than nine B3 parity violations are
detected. All three of these parameters are counted and thresholded
independently for each STS-1 path terminated by the system.
Severely Errored Seconds (SES)
9
A SES is a second in which nine or more B3 parity violations are detected. SES
are counted and thresholded separately for each STS-1 path terminated by the
system. A UAS is not counted as a SES.
Unavailable Seconds (UAS)
9
An STS-1 path is considered "unavailable" from the beginning of X consecutive
SES until the beginning of Y consecutive seconds, none of which is severely
errored. An X is equal to 10 seconds or, in the case of a failure, the STS-1 path
signal failure. A Y is equal to 10 seconds of no SES or STS path signal failure. If
there is an unprotected STS-1 path terminating equipment failure (3DS3 or OLIU),
UAS are counted from within 1 second of circuit pack failure to within 1 second of
circuit pack recovery.
DS3 Path Parameters
9
Performance Monitoring (PM) Enabling
9
Collection of DS3 path parameters are initiated only when a slot is equipped with
a 3DS3 circuit pack, the port is in the IS or NMON state, the DS3 port is
provisioned for VM or VMR mode, and an STS-1 cross-connection is present (see
Table 9-5). Parameters continue to be available in reports and generate
appropriate TCAs until the input signal to the DS3 interface is removed and the
update
command or the UPD/INIT button is pressed (transitioning to the AUTO
state). Alternatively, the DS3 path parameter can be disabled by setting the DS3
path port to the CC mode using the
set-t3
command. The PM mode parameter
should be set to "on" (default), using the
set-t3
command to start PM data
monitoring and reporting.
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 ...