| Description | GGSN memory overload protection is a mechanism to
prevent GGSN from completely running out of memory
when GGSN is running near its capacity or in some
failure scenarios like CG down. A protection mechanism
was put into place where charging triggers would be
ignored, PDP create would be rejected, PDP update
request will delete PDP, once the available memory on
the GGSN drops below a configured threshold.
Charging triggers occurs due to certain criteria's like
volume limit, time limit. When one of the conditions is
met , the CDR's are closed and will be updated to the
charging gateway. |