# GGSN GTP Timer

The GGSN GTP Timer category of the Chassis Configuration dialog box lists details of the GGSN GTP timer.

Note This dialog can be viewed if cGtpGSNService is set to 'ggsn'.

## Procedure

1. Right-click the device and then select Configure, or double-click the device.

2. Select GGSN GTP Timer from the Category list.

The following information appears:

T3-RESPONSE Timer (cGtpT3ResponseTimer)

Availability of Echo Request Timer (cGtpEchoRequestTimerEnable)

Echo Request Timer (cGtpEchoRequestTimer)

Availability of Echo Timer (cGtpDynamicEchoTimerEnable)

Minimum Echo Time (cGtpDynamicEchoTimerMinTime)

Smooth Factor (cGtpDynamicEchoTimerSmoothFactor)

### T3-RESPONSE Timer (cGtpT3ResponseTimer)

Used for retransmission. A GSN starts the timer, upon transmission of a signaling request message. The message is retransmitted, if no response is received before the timer expires.

### Availability of Echo Request Timer (cGtpEchoRequestTimerEnable)

Indicates if echo request timer is used by the GGSN.

Value | Description
true | Enable echo request timer
false | Disable echo request timer

### Echo Request Timer (cGtpEchoRequestTimer)

Time interval, in seconds, after which an echo request message is retransmitted. An echo response message is normally received in response to an echo request message. In the event of no response to the echo request message, a notification is generated, identifying the peer GSN (that is, cGtpGSN Address), that failed to respond.

This object can be retrieved only if cGtpEchoRequestTimerEnable is set to true.

### Availability of Echo Timer (cGtpDynamicEchoTimerEnable)

Indicates if dynamic echo timer is used by the GGSN.

Value | Description
true | Enables dynamic echo timer
false | Disables dynamic echo timer

### Minimum Echo Time (cGtpDynamicEchoTimerMinTime)

Minimum time, in seconds, used by the dynamic echo timer. This object can be retrieved only if cGtpDynamicEchoTimerEnable is set to true.

### Smooth Factor (cGtpDynamicEchoTimerSmoothFactor)

Smooth factor by which the dynamic echo timer can be adjusted. This object can be retrieved only if cGtpDynamicEchoTimerEnable is set to true.