This module provides a bidirectional connection to a real TAP device of the host computer which is running the simulation. It writes the packets arrived on 'lowerLayerIn' gate to the specified real TAP device, and sends out packets arrived from real TAP device on 'lowerLayerOut' gate.

Used in compound modules

Name	Type	Description
ExtUpperEthernetInterface	compound module	This module provides an Ethernet network interface suitable for emulation. The upper part of the network interface is realized in the real world using a real TAP device of the host computer which is running the simulation.
ExtUpperIeee80211Interface	compound module	This module provides an IEEE 802.11 network interface suitable for emulation. The upper part of the network interface is realized in the real world using a real TAP device of the host computer which is running the simulation.

Parameters

Name	Type	Default value	Description
device	string		name of existing real tap interface
namespace	string	""
packetNameFormat	string	"Ext-%p-%t-%n"

Properties

Name	Value	Description
display	i=block/rxtx

Gates

Name	Direction	Size	Description
lowerLayerIn	input
lowerLayerOut	output

Signals

Name	Type	Unit
packetReceived	Packet
packetSent	Packet
packetReceivedFromLower	Packet
packetSentToLower	Packet

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode
packetReceived	packets received	packetReceived	count, sum(packetBytes), vector(packetBytes)		none
packetSent	packets sent	packetSent	count, sum(packetBytes), vector(packetBytes)		none
packetReceivedFromLower	packets received from higher layer	packetReceivedFromLower	count, sum(packetBytes), vector(packetBytes)		none
packetSentFromLower	packets sent to higher layer	packetSentToLower	count, sum(packetBytes), vector(packetBytes)		none

Source code

//
// This module provides a bidirectional connection to a real TAP device of the
// host computer which is running the simulation. It writes the packets arrived
// on 'lowerLayerIn' gate to the specified real TAP device, and sends out packets
// arrived from real TAP device on 'lowerLayerOut' gate.
//
simple ExtEthernetTapDevice
{
    parameters:
        string device; // name of existing real tap interface
        string namespace = default("");
        string packetNameFormat = default("Ext-%p-%t-%n");
        @display("i=block/rxtx");
        @signal[packetSentToLower](type=Packet);
        @signal[packetReceivedFromLower](type=Packet);
        @signal[packetSent](type=Packet);
        @signal[packetReceived](type=Packet);
        @statistic[packetSentFromLower](title="packets sent to higher layer"; source=packetSentToLower; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetReceivedFromLower](title="packets received from higher layer"; source=packetReceivedFromLower; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetSent](title="packets sent"; source=packetSent; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
        @statistic[packetReceived](title="packets received"; source=packetReceived; record=count,"sum(packetBytes)","vector(packetBytes)"; interpolationmode=none);
    gates:
        input lowerLayerIn @labels(EtherFrame);
        output lowerLayerOut @labels(EtherFrame);
}

File: src/inet/emulation/linklayer/ethernet/ExtEthernetTapDevice.ned

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