Maintenance-Object Repair Procedures
555-233-143
8-1514
Issue 1 May 2002
Troubleshooting Synchronization Problems
The following flow chart presents a logical approach to troubleshooting
synchronization problems in conjunction with the previous background
information. Explanatory notes follow the charts.
Figure 8-87.
Synchronization Troubleshooting, Fig. 1 of 6
Slips
No
Enable
synchronization.
Yes
Is synchronization
enabled?
A
Is reference a
free-running Tone-Clock?
System is
operating
as a timing
slave in network.
Synchronization is enabled
in system operating as port
network’s timing master.
To Fig 2
Slips on
DS1 facilities?
Slips on some DS1
facilities in same PN
as reference?
Yes
No
Problem is
in switch.
To Fig 5
To Fig 4
Problems with
reference PN or
synchronization plan
Slips on IPSI or Tone CLK, EIs
SNIs, or non-reference PN DS1s
C
D
1
1
2
3
No
Yes
Yes
No
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 ...