SYS-LINK (System Links)
Issue 1 May 2002
8-1533
555-233-143
SYS-LINK (System Links)
System links are packet links that originate at the Packet Interface board and
traverse various hardware components to specific endpoints. The hardware
components involved on the forward and reverse routes can be different,
depending upon the configuration and switch administration. Various types of
links are defined by their endpoints:
Recording System Link Events
The system links MO records every error encountered on the links. Most of these
events are not extraordinary unless they occur with an alarming frequency. The
events are logged as they occur, leaving a “trail” to help analyze abnormal
behavior exhibited by the endpoints attached to the links or the links themselves.
When a link goes down, an alarm is raised immediately. For EAL, INL, and PACL
link types a MINOR alarm is raised; for every other link type a WARNING alarm is
raised. Other alarming conditions that do not cause the link to go down get a
WARNING alarm, regardless of the link type.
MO’s Name (in
Alarm Log)
Alarm
Level
Initial SAT Command to
Run
Full Name of MO
SYS-LINK
MINOR
test sys-link UUCSSpp
SYSTEM LINKS
SYS-LINK
WARNING
test sys-link UUCSSpp
SYSTEM LINKS
EAL
Expansion Archangel Link terminating at an Expansion Interface board. This
link carries CCMS messages.
INL
Indirect Neighbor Link terminating at a Switch Node Interface board
PACL
PNC ATM Control Link terminating at a PNC ATM-EI board. This link carries
ATM signaling commands from CaPro to the remote TN2238 (ATM-EI)
boards.
PRI
ISDN-PRI D-Channel Link terminating at a Universal DS1 board
RSCL
Remote Socket Control Link terminating at a C-LAN board
RSL
Remote Socket Link terminating at a C-LAN board
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...