# GGSN Charging Transmission Details

From this dialog box, you can view charging transmission details for the device.

Note: This dialog box is available only if the value of cGtpGSNService is set to ggsn.

## Navigation

1. Right-click the Multi-processor WAN Application Module (MWAM) and then select Configure, or double-click the module.

2. Select MWAM module from the Category drop-down box.

3. With a device selected in the MWAM module dialog box, click Configure.

4. Select GGSN Charging Transmission Details from the Category drop-down box.

The following information is displayed:

> GGSN's Queue Size (cgprsCgPktsQSize)

> Two TCP Retry Interval (cgprsCgPathRequest)

> Container Triggered Threshold (cgprsCgContainerVolThresh)

> IP Mapping (cgprsCgMapDataTos)

> Transport Protocol (cgprsCgPathProtocol)

> Switch Timeout (cgprsCgServerSwitchTimeout)

> Max Charging Condition (cgprsCgConditionLimit)

> Destination Port (cgprsCgGtpPrimePort)

> Transmit Buffer Size (cgprsCgN3BufferSize)

### GGSN's Queue Size (cgprsCgPktsQSize)

Maximum size of the GGSN queue, in terms of the number of outstanding requests for transfer of charging data.

The default value is 128.

### Two TCP Retry Interval (cgprsCgPathRequest)

Time interval, in minutes, between two attempts at establishing TCP connection for communication with CG.

The default value is 0.

### Container Triggered Threshold (cgprsCgContainerVolThresh)

Traffic volume threshold, in bytes, that triggers addition of a container and closure of the G-CDR.

The default value is 1048576.

### IP Mapping (cgprsCgMapDataTos)

IP Mapping of the Type of Service (ToS) for the GPRS charging data packets that are transmitted by the GGSN. The service priority is directly proportional to the ToS mapping value, with the service priority being higher when the mapping value is higher.

The values 6 and 7 are not used for mapping. Default value is 3.

### Transport Protocol (cgprsCgPathProtocol)

Transport protocol used by the GGSN to transmit and receive charging data to and from a CG. The protocols used are:

> UDP

> TCP

The default value is UDP.

### Switch Timeout (cgprsCgServerSwitchTimeout)

Time, in seconds, for which a GGSN waits to establish connection with a destination CG that cannot be located or that has become unusable. The GGSN then switches over to an alternate CG.

A value of 0 means that this object is disabled. The default value is 60.

### Max Charging Condition (cgprsCgConditionLimit)

Maximum number of changes to a charging condition that triggers closure of a G-CDR partial record. When the maximum number is reached, the existing G-CDR is closed and a new partial G-CDR is opened.

The default value is 3.

### Destination Port (cgprsCgGtpPrimePort)

Destination port for transferring a G-CDR between the GGSN and CG. This port is used for both UDP and TCP.

The default value is 3386.

### Transmit Buffer Size (cgprsCgN3BufferSize)

Buffer size, in bytes, for transmitting GTP PDUs.

The default value is 1460.