NED File src/inet/protocolelement/common/InterpacketGapInserter.ned

Name	Type	Description
InterpacketGapInserter	simple module	Enforces a minimum time gap between consecutive packets, which is important for protocols like Ethernet that require an interpacket gap (IPG) or interframe spacing. This module delays packet transmission to ensure the configured minimum gap duration is maintained between packets. It can optionally use an external clock module for timing, and supports packet streaming.

Source code

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


package inet.protocolelement.common;

import inet.queueing.base.PacketProcessorBase;

//
// Enforces a minimum time gap between consecutive packets, which is important
// for protocols like Ethernet that require an interpacket gap (IPG) or
// interframe spacing. This module delays packet transmission to ensure the
// configured minimum gap duration is maintained between packets. It can
// optionally use an external clock module for timing, and supports packet
// streaming.
//
simple InterpacketGapInserter extends PacketProcessorBase
{
    parameters:
        string clockModule = default(""); // Relative path of a module that implements IClock; optional
        bool initialChannelBusy = default(false); // Assume that the channel was busy before the simulation started
        volatile double duration @unit(s);
        displayStringTextFormat = default("delayed %p pk (%l)\nifg: %g");
        @display("i=block/timer");
        @class(InterpacketGapInserter);
        @signal[interpacketGapStarted](type=double);
        @signal[interpacketGapEnded](type=double);
        @statistic[interpacketGap](title="interpacket gap state"; type=int; source=count(interpacketGapStarted) - count(interpacketGapEnded); record=vector; interpolationmode=sample-hold);
    gates:
        input in;
        output out;
}