The Ga-GGSN node is used in the CGF Nodal test case to simulate the CGF associated with a GGSN via the Ga interface.
With an Ethernet User Node, you can define:
The IP address and routing options... The IP Address will increment for each node.
The MAC Address to override the Hardware MAC address so the packets sent out of the interface will use the provisioned MAC address rather the Hardware MAC Address.
Custom port selection... and error injection with the Advanced... button.
The Outbound Traffic Port to disable the normal routing function and to force packets out of the selected interface.
The GTP' Node report tab displays the processing and throughput measurements for the emulator.