| Description | GGSN supports this GPRS service mode for maintenance
purposes. Two modes are supported in GGSN, operational and
maintenance mode. 'inService' mode represents nominal
operation, and there will be no change in the way the GGSN
operates. 'maintenance' mode imposes restrictions, such as
some of the configurations allowed by the GGSN, and no new
PDPs will be accepted. 'maintenance' mode can be useful to
make some changes to the configuration of the GGSN without
affecting the existing PDPs.
'maintenance' mode gloablly applies to the GGSN, which means
the whole box will be put in maintenance mode. There also
exists APN level maintenance mode, which is defined in
CISCO-GPRS_ACC-PT-MIB, and charging maintenance mode which
is defined in CISCO-GPRS-CHARGING-MIB, which is out of
scope of this MIB.
Internally GGSN maintains three states (inService,
maintenance and outOfService ), which can be viewed with
cGgsnServiceModeStatus.
The SNMP entity generates notification when switching modes.
It uses the cGgsnInServiceNotif and cGgsnMaintenanceNotif
for this purpose. |