для Cisco Cisco Packet Data Gateway (PDG)
ECS Changes in Release 17
▀ ECS Enhancements for 17.3
▄ Release Change Reference, StarOS Release 17
126
CSCus96377 - Reset Flow-Bearer mapping is missed in certain scenarios
Applicable Products: GGSN, P-GW, PDSN
Feature Changes
ACS Data Flow-Bearer Association
Previous Behavior: When a new bearer gets created from UE, ACS does not mark all existing data flow-bearer
association invalid. ACS uses existing bearer mapping to send a new downlink packet. Secondly, when an uplink packet
fails to match any rule on the bearer it came from, it is discarded and downlink packets for the same flow are also
discarded.
association invalid. ACS uses existing bearer mapping to send a new downlink packet. Secondly, when an uplink packet
fails to match any rule on the bearer it came from, it is discarded and downlink packets for the same flow are also
discarded.
New Behavior: When a new bearer gets created from UE, ACS marks all existing data flow-bearer association invalid.
When a new downlink packet comes for the same flow, ACS queries SM for the correct bearer and sends the new
downlink packet on the correct bearer. Secondly, when an uplink packet fails to match any rule on the bearer it came
from, it is discarded and flow-bearer association is invalidated. If a downlink packet comes for the same flow, ACS now
sends a bearer lookup query to SM and the packet goes on the correct bearer.
When a new downlink packet comes for the same flow, ACS queries SM for the correct bearer and sends the new
downlink packet on the correct bearer. Secondly, when an uplink packet fails to match any rule on the bearer it came
from, it is discarded and flow-bearer association is invalidated. If a downlink packet comes for the same flow, ACS now
sends a bearer lookup query to SM and the packet goes on the correct bearer.