DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Commands
8-182reset interchange
8
Both demand and spontaneous PNC interchanges are prevented by the
following conditions:
■ The standby PNC is busied out.
■ The PNCs are locked by means of the
set pnc lock
or
reset PNC
override-and-lock
commands.
■ For five minutes after a spontaneous PNC interchange, or for 30 seconds
after a demand interchange, an anti-thrashing mechanism prevents
subsequent interchanges unless the override-and-lock option is used.
■ If the state of health of the standby PNC is worse than that of the active,
the command will abort unless the override-and-lock option is used.
■ If the standby PNC has not completed a global refresh since it was last
initialized or released, the reset will abort unless the override-and -lock
option is used.
Note the following caution regarding the use of the override-and-lock option.
See
status pnc
for details of how to obtain and interpret the states of health and
other current information about the PNCs. For a more complete explanation of
PNC duplication and interchanges, see PNC-DUP in Chapter 9.
Parameters
interchange
”interchange” (without a preceding hyphen) must be specified on
the command line.
override-and-lock
This option is also used to override the anti-thrashing mechanism.
Subsequent PNC interchanges are prevented, regardless of
changes in the states health of the PNCs. Double call setup still
takes place; each call is set up on both PNCs. To unlock the PNCs,
use
set pnc unlock
.
!
CAUTION:
This option forces execution of the interchange regardless of
the state of health of the standby, possibly disrupting service.
