User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si 
555-230-123 
Issue 1
April 1997
Initialization and Recovery 
Page 4-7Reset System Interchange (High or Critical Reliability Systems Only) 
4
Reset System Interchange (High or
Critical Reliability Systems Only)
SPE-interchange (system hot start) is denoted by an "i" in the initcauses log. This 
restart is used to transfer control from the Active SPE to the Standby SPE in the 
least disruptive manner. Interchange (i) is the most transparent of all levels of 
restart and causes no disruption of service to telephone users. This restart takes 
fewer than two seconds.
NOTE:
The administration terminal is logged off. No diagnostics are performed, 
and only the login prompt displays.
An interchange (i) can be performed in one of the following three ways:
a. System Technician-Demanded: using the reset system interchange 
command
b. Scheduled Maintenance
c. Software-Requested: The software requests the interchange when it 
determines that the Standby SPE is healthier than the current Active SPE
NOTE:
For most SPE alarms, interchange to the standby SPE is achieved using the 
hot restart (i). However, there may be other alarms for which another restart 
level (1 through 4) must be used to achieve a transition to the Standby SPE. 
See Table 6-1
, “Software-Requested Interchanges Caused by Alarm 
Conditions” in Chapter 6, ‘‘Reliability Systems: A Maintenance Aid’’, for a 
complete list of alarms and restart levels.
EXECEPTION TEST PASSED
TIMER TEST PASSED
MTP TEST PASSED
SANITY TIMER TEST PASSED
ADDRESS MATCHER TEST PASSED
FLASH TEXT CHECKSUM TEST PASSED
DECOMPRESSING IDATA in_cnt = 455532, 
out_cnt = 1802240
RAM DATA CHECKSUM TEST PASSED
RESET 5 (EXT REBOOT ) PEFORMED
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