Nortel DMS 100 Series Maintenance Manual page 54

2-38 Maintenance overview
Figure 2-10 Enhanced XPM node table synchronization
Bulk data update
With a Warm SWACT, the inactive unit requests a bulk transfer of critical
dynamic data from the active unit. This event only occurs when both units of
the RSC-M are INSV. The system requires this data to maintain established
calls and to continue call processing if a SWACT occurs. This transfer is a bulk
data update.
Bulk data includes AMC state, P-side and C-side port states (open/closed) and
call processing data. The connection of a specified line circuit to a specified
PCM30 channel is an example of call processing data.
A bulk data update transfers information from the active RSC-M unit to the
inactive unit when the inactive unit is RTS. The information that a bulk data
update transfers follows:
•
•
•
A bulk data update brings the inactive unit of the RSC-M to date with the active
unit.
297-8223-550 Standard 04.02 November 2000
Data
Active unit
Node and
port tables
AMC state (INSV or BSY)
frequency selective ringing (FSR) codes
subscriber states (idle or BSY)
CM
XPM
Configuration table map
information is not sent to
the inactive unit
Inactive unit
Node and
port tables