Network Traffic Simulation Dlls - Intel IXP2400 User Manual

1. To add a new Network Traffic Simulator Plug-in click
the New... button and the Manage NTS Plug-in pop
up appears. Specify the name and click OK. The
name then appears in the Select Network Traffic
DLL pulldown box.
2. To specify the Run Time DLL, enter the path. or
click the
The Network Traffic Simulator has now been plugged into the Workbench project and is available
for selection on the Traffic Assignment page.
2.11.5.1

Network Traffic Simulation DLLs

To simulate supplying data to a port or taking data from the port, you can provide a dynamic-link
library (DLL) called a Network Traffic Simulator Run-time DLL. You assign this DLL to the input
and/or output side of a media bus device port (see
A network traffic simulation (NTS) Run-time DLL must provide the following functions:
Initialize
Close
Reset
If the DLL is assigned to supply data to a port, then it must also have the following functions:
InitializeRxPort
GetNextByte
GetInterpacketTime
GetReturnStatus
CloseRxPort
If the DLL is assigned to take data from a port, then it must also have the following functions:
InitializeTxPort
SendNextByte
CloseTxPort
If the DLL supports a port configuration string, then it must also have the following functions:
ConfigureRxPort
ConfigureTxPort
When you Start Debugging, if an NTS DLL is assigned to a port and the NTS DLL is not already
loaded due to a previous assignment to another port, the PacketSim DLL loads the NTS DLL and
calls its
Initialize()
Initialize()
then call these functions from a script in order to configure your traffic simulation.
When the device model is connected to a chip model when debug is started, the NTS DLL is called
to initialize each port. The PacketSim DLL iterates through all the ports on every media bus device.
If the NTS DLL is connected to the receive side of the port, the function
called. If the NTS DLL is connected to the transmit side of the port, the function
InitializeTxPort()
are called, if provided, to send the port configuration string into the NTS DLL.
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function. This is the only time that this function is called. In the
function the NTS DLL can register console functions with the Transactor. You can
is called. The
ConfigureRxPort
IXP2400/IXP2800 Network Processors
Developer Workbench
Section 2.11.5).
InitializeRxPort()
and
ConfigureTxPort
is
functions
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