Cisco Cisco Packet Data Gateway (PDG)
GGSN Service Configuration Mode Commands
retransmission-timeout ▀
Command Line Interface Reference, StarOS Release 16 ▄
5123
retransmission-timeout
Configures the timeout period in between retransmissions of GTP control packets. This timeout configuration is not
applicable on Echo Request retransmission.
applicable on Echo Request retransmission.
Important:
In 17.3 and later releases, this command has been deprecated.
Product
GGSN
Privilege
Security Administrator, Administrator
Mode
Exec > Global Configuration > Context Configuration > GGSN Service Configuration
configure > context context_name > ggsn-service service_name
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-ggsn-service)#
Syntax
retransmission-timeout retransmit_time
default retransmission-timeout
default
Configures the default time interval that must pass without an SGSN response before the GGSN service
retransmits GTP control packets.
retransmits GTP control packets.
retransmit_time
Default: 5
Specifies the amount of time that must pass without an SGSN response before the GGSN service retransmits
GTP control packets.
Specifies the amount of time that must pass without an SGSN response before the GGSN service retransmits
GTP control packets.
retransmit_time
is measured in seconds and can be configured to an integer from 1 through 20.
Usage
This command is used in conjunction with the
max-retransmissions
command to control the
retransmission of GTP control packets when no response is received from an SGSN.
If no response is received from the SGSN prior to the expiration of the timeout value, the GTP control
packets are re-sent by the GGSN. This process occurs as many times as allowed by the configuration of the
max-retransmissions command.
If the max-retransmissions value is exceeded within the retransmission-timeout period, the GGSN records a
“Path Failure” for that SGSN and releases all PDP contexts associated with it.
If no response is received from the SGSN prior to the expiration of the timeout value, the GTP control
packets are re-sent by the GGSN. This process occurs as many times as allowed by the configuration of the
max-retransmissions command.
If the max-retransmissions value is exceeded within the retransmission-timeout period, the GGSN records a
“Path Failure” for that SGSN and releases all PDP contexts associated with it.
Important:
This retransmission timeout configuration in not applicable for Echo Requests message
retransmission. Echo are sent/retransmitted every echo interval, which can be configured separately.