Cisco Cisco Packet Data Interworking Function (PDIF) Prospecto
S-GW Service Configuration Mode Commands
▀ ddn failure-action
▄ Cisco ASR 5x00 Command Line Interface Reference
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ddn failure-action
Configures a timer value to delay paging for this UE when the S-GW has initiated a Downlink Data Notification (DDN)
to the MME and has received back a DDN failure.
to the MME and has received back a DDN failure.
Product
S-GW
SAEGW
Privilege
Administrator
Mode
Exec > Global Configuration > Context Configuration > S-GW Service Configuration
configure > context context_name > sgw-service service_name
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-sgw-service)#
Syntax
ddn failure-action pkt-drop-time seconds
default ddn failure-action pkt-drop-time
default
Resets the command to its default setting of 300 seconds.
failure-action pkt-drop-time seconds
Default: 300
Configures a timer that determines how long the S-GW will discard downlink data packets so the MME has
enough time to receive the Modify Bearer Request and prevent further errors being sent to the S-GW in the
DDN Ack message.
Configures a timer that determines how long the S-GW will discard downlink data packets so the MME has
enough time to receive the Modify Bearer Request and prevent further errors being sent to the S-GW in the
DDN Ack message.
seconds
must be an integer value from 1 to 300.
Usage
Use this command to set a timer value to delay the sending of excessive Downlink Data Notification
messages to the MME (and receiving excessive DDN Ack message with errors from the MME) in cases when
downlink data is arriving before the Modify Bearer Request is received. During the delay, downlink data
packets are discarded until the timer has expired. This timer is triggered upon receiving the first error in a
DDN Ack message from the MME.
messages to the MME (and receiving excessive DDN Ack message with errors from the MME) in cases when
downlink data is arriving before the Modify Bearer Request is received. During the delay, downlink data
packets are discarded until the timer has expired. This timer is triggered upon receiving the first error in a
DDN Ack message from the MME.
Related Functionality
DDN Delay: By default, the S-GW supports the delay value IE included in a DDN acknowledgement
message. The S-GW automatically multiplies this value by 50 ms, then applies the calculated delay for DDN
for the UE.
message. The S-GW automatically multiplies this value by 50 ms, then applies the calculated delay for DDN
for the UE.
Example