B-channel status change..................................................................................................................
149
Channel status audit.........................................................................................................................
149
Service message commands...........................................................................................................
149
2.0 Mb PRI error detection...............................................................................................................
149
Group I errors...................................................................................................................................
150
Group 2 errors..................................................................................................................................
154
System PRI maintenance tools.................................................................................................................
158
DCHI commands..............................................................................................................................
159
DDCH commands............................................................................................................................
160
Clock controller commands..............................................................................................................
160
Link diagnostic and remote loop back tests.....................................................................................
163
Link diagnostic test...........................................................................................................................
163
Remote loopback test.......................................................................................................................
164
Chapter 15: 2.0 Mb ISL maintenance.................................................................................
165
Contents....................................................................................................................................................
165
Overview...................................................................................................................................................
165
ISL hardware requirements..............................................................................................................
165
ISL in shared mode..........................................................................................................................
166
ISL in dedicated mode using leased line..........................................................................................
166
ISL in dedicated mode using dial-up modem...................................................................................
167
ISL hardware installation...........................................................................................................................
168
Shared mode....................................................................................................................................
168
Dedicated mode...............................................................................................................................
168
Setting up the D-channel..................................................................................................................
169
ISL software implementation.....................................................................................................................
170
Shared mode....................................................................................................................................
170
Dedicated mode...............................................................................................................................
170
ISL maintenance.......................................................................................................................................
174
DCHI quick reference.......................................................................................................................
174
Maintenance messages...................................................................................................................
175
Maintenance testing.........................................................................................................................
175
ISL back-to-back testing (without modems)..............................................................................................
175
Index.....................................................................................................................................
177
ISDN Primary Rate Interface Maintenance November 2011 7