180
A
PPENDIX
J: P
ERFORMANCE
M
ONITORING
AND
L
OOPBACK
S
UPPORT
ON
U
LTRA
WAN C
ONNECTORS
ANSI T1.403-1995
Compliance
UltraWAN CSU/DSU connectors support central-office switch-initiated
loopback activation and deactivation requests.
Remote Line Loopback activation is supported on T1SF lines via the
in-band, framed, 10 second duration pattern of 00001. Remote Line
Loopback deactivation is supported via the in-band, framed, 10 second
duration pattern of 001.
Remote Line Loopback activation is supported on T1ESF lines via the line
loopback activate request Bit-oriented Protocol (BOP) 0x0EFF pattern
being sent over the Facilities Data Link (FDL) channel. Remote Line
Loopback deactivation is supported via the payload loopback deactivate
request BOP 0x38FF being sent over the FDL.
Remote Payload Loopback activation is supported on T1ESF lines via the
payload loopback activate request Bit-oriented Protocol (BOP) 0x14FF
pattern being sent over the Facilities Data Link (FDL) channel. Remote
Payload Loopback deactivation is supported via the payload loopback
deactivate request BOP 0x32FF being sent over the FDL.
Performance Monitoring Statistics Collection and Reporting is supported
on T1ESF lines, as described in section 9.4 of the ANSI T1.403-1995
standard. Statistics are collected every second. Statistics are reported, via
status MOPs on the FDL, to the central office switch once every second.
Additional
Performance
Monitoring Support
on the Console
Interface
UltraWAN CSU/DSU connectors also support loopback activation and
deactivation via the console interface. In this case, in-band, BoP, or MoP
activation and deactivation requests are not used or recognized. Instead,
a loopback condition is forced on the connector from the Pathbuilder
software. Loopbacks support for both E1 and T1 lines is provided. This is
especially helpful for E1 lines, since no standards exist for in-band
activation and deactivation. See the LPBK command in Appendix H for
more detail on how to activate and deactivate a loopback from the
console.
Two performance statistics displays are provided to console users. These
displays contain the detailed statistics information specified in the AT&T
TR54016.
Although these statistics have been defined for reporting on T1 ESF lines,
the statistics information is available for both E1 and T1 lines. Once
again, this is especially helpful for E1 lines, since no standards exist for
in-band reporting of this information to the PTT switch.
The specific display parameters and commands are described next:
Содержание 3C8S5007 - SuperStack II PathBuilder S500...
Страница 1: ...http www 3com com Using the PathBuilder S5xx Switch Part No 09 1868 000 Published November 1999...
Страница 12: ......
Страница 24: ...24 CHAPTER 1 OVERVIEW OF THE PATHBUILDER SWITCH...
Страница 36: ...36 CHAPTER 2 INSTALLING THE HARDWARE...
Страница 48: ...48 CHAPTER 3 LOGGING ON AND PERFORMING ADMINISTRATIVE TASKS...
Страница 66: ...66 CHAPTER 4 BASIC CONFIGURATION OF PORTS PATHS AND CONNECTORS...
Страница 76: ...76 APPENDIX A SERIAL DEVICES...
Страница 82: ...82 APPENDIX B TECHNICAL SUPPORT...
Страница 106: ...106 APPENDIX C CONNECTORS AND CABLES...
Страница 110: ...110 APPENDIX D CUSTOMIZING YOUR SOFTWARE...
Страница 138: ...138 APPENDIX E TROUBLESHOOTING...
Страница 142: ...142 APPENDIX F RELOADING THE SYSTEM SOFTWARE...
Страница 166: ...166 APPENDIX H COMPLETING THE ATM CONFIGURATION...
Страница 178: ...178 APPENDIX I COMMANDS AND PARAMETERS FOR ULTRA WAN CSU DSU INTERFACES...