NED File src/inet/emulation/linklayer/ethernet/ExtUpperEthernetInterface.ned

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.

Source code

//
// Copyright (C) 2020 OpenSim Ltd.
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//


package inet.emulation.linklayer.ethernet;

import inet.emulation.common.ExtInterface;
import inet.linklayer.contract.IEtherMac;
import inet.linklayer.contract.IEthernetInterface;

//
// 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.
//
module ExtUpperEthernetInterface extends ExtInterface like IEthernetInterface
{
    parameters:
        bool csmacdSupport = default(false);  // by default CSMA/CD is turned off, so only point-to-point duplex links are supported.
        double bitrate @unit(bps) = default(nan bps);
    gates:
        input cutthroughIn @loose;
        output cutthroughOut @loose;
        inout phys @labels(EthernetSignal);
    submodules:
        tap: ExtEthernetTapDevice {
            parameters:
                @display("p=300,100");
        }
        mac: <default(csmacdSupport ? "EthernetCsmaMac" : "EthernetMac")> like IEtherMac {
            parameters:
                queue.packetCapacity = 10000;
                @display("p=300,200");
        }
    connections allowunconnected:
        tap.lowerLayerOut --> { @display("m=s"); } --> mac.upperLayerIn;
        tap.lowerLayerIn <-- { @display("m=s"); } <-- mac.upperLayerOut;
        mac.phys <--> { @display("m=s"); } <--> phys;
}