This object specifies the time interval TWO for
collecting the throughput per APN/SGSN.
This object is same as cGgsnThruputIntervalOne. It's just
an option for a second throughput collection for a different
throughput interval time.
The value 0 means the timer TWO will be disabled.
INCONSISTENT value SNMP error will happen when trying to set
cGgsnThruputIntervalOne and cGgsnThruputIntervalTwo with same
value expect '0'. Setting the same value to the same object
will reset the value / collection status for that interval.