Cisco Cisco Packet Data Gateway (PDG) Dépliant
GGSN Service Configuration Mode Commands
gtpc ran-procedure-ready-delay ▀
Cisco ASR 5x00 Command Line Interface Reference ▄
4959
If the GGSN receives the “Update PDP Context Request” before timer expiry, the GGSN stops the
timer, sends all the queued/buffered packets in ‘first-in first-out’ manner and disables buffering of
subsequent downlink data.
subsequent downlink data.
If the GGSN receives the “Update PDP Context Request” before the timer expires, it processes the
“Update PDP Context Request” as usual, but does not disable the buffering of downlink data. It then
waits for another “Update PDP Context Request” to come with the RAN Procedure Ready set, or
waits for timer to expire.
waits for another “Update PDP Context Request” to come with the RAN Procedure Ready set, or
waits for timer to expire.
If the GGSN does not receive the “Update PDP Context Request” with RAN Procedure Ready set
before timer expiry, the timer is fired and the GGSN starts sending all queued packets and disables
buffering of subsequent downlink data (assuming that the corresponding SGSN does not support this
feature).
buffering of subsequent downlink data (assuming that the corresponding SGSN does not support this
feature).
If the timer has expired and the GGSN receives an “Update PDP Context Request” for a secondary PDP
context with or without RAN Procedure Ready bit set, the UPC will be processed normally without
buffering the packets.
buffering the packets.
Important:
This feature does not affect the Enhanced Charging Service or deep packet inspection (DPI) since the
buffering of downlink data is done before sending it to an ACSMgr.
Important:
During an SGSN handoff scenario all packets are processed normally and the downlink packets are
buffered until the timer expires.
Example
The following command configures the GGSN service to enable the RAN Procedure Ready feature and
specify the timeout period as
specify the timeout period as
20
seconds for the RAN Procedure timer in GGSN:
gtpc ran-procedure-ready-delay timeout 20