GGSN Average packet throughput (packets/s) with APN XXX is zer0

If there is an alarm like that "GGSN average packet throughput with APN smg is 0"

Then login to GGSN LMT and give following command…

<GGSN01>display pdp-number apn smg

SUCCESS: PDP context(s) Number Information:

---------------

Slot 8 CPU 0 GTP v0 PDP context(s) = 0

Slot 8 CPU 0 GTP v1 PDP context(s) = 0

Slot 8 CPU 1 GTP v0 PDP context(s) = 0

Slot 8 CPU 1 GTP v1 PDP context(s) = 0

ALL GTP PDP context(s) = 0

(Number of results = 1)