Enabling the GTP-u Echo Request Procedure
The existing CLI (Command Line Interface) in gtpu-service is used to enable the GTP-u Echo request procedure.
configure
gtpu-service service_name
echo-interval seconds
echo-retransmission-timeout seconds
max-retransmissions num
path-failure detection-policy gtp echo
end
NOTES:
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gtpu-service service_name : Creates a GTP-u service enters the GTP-u Service Configuration Mode for the current context. service_name specifies the name of the GTP-u service.
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echo-interval seconds : Configures the rate at which GTP v1-u echo packets are sent. seconds specifies the number of seconds between the sending of a GTP-uv1 echo packet. It must be an integer in the range of 60–3600.
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echo-retransmission-timeout seconds : Configures the timeout for GTP-u echo message retransmissions for this service. seconds specifies the echo retransmission timeout, in seconds, for the GTP-u service. It must be an integer in the range of 1–20. The default value is 5.
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max-retransmissions num : Configures the maximum retry limit for GTP-u echo retransmissions. num specifies the number of GTP-u echo message retransmissions allowed before triggering a path failure error condition. It must be an integer in the range of 0–15.
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path-failure detection-policy gtp echo : Configures a path failure detection policy on GTP-u echo messages that have been retransmitted the maximum number of retry times. gtp echo sets the detection policy to detect a failure upon reaching the maximum number of GTP-u echo message retransmissions.
The following is a sample configuration for enabling GTP-u Echo request procedure.
configure
gtpu-service n3-gtpu-service
echo-interval 60
echo-retransmission-timeout 5
max-retransmissions 5
path-failure detection-policy gtp echo
end