This module provides a mechanism to test network layer connectivity using echo request/response messages similar to that of ICMP.

Used in compound modules

Name	Type	Description
NextHopNetworkLayer	compound module	This module provides a network layer for the next hop forwarding.
SimpleNetworkLayer	compound module	This module provides a simple network layer.
WiseRouteNetworkLayer	compound module	This module provides a simple network layer.

Properties

Name	Value	Description
display	i=block/control

Gates

Name	Direction	Size	Description
ipIn	input
ipOut	output

Direct method calls (observed)

call to	function	info
MessageDispatcher	inet::MessageDispatcher::arrived	arrived
MessageDispatcher	inet::MessageDispatcher::handleRegisterProtocol	handleRegisterProtocol

Incoming messages (observed)

gate	msg	kind	ctrl	srcModule	tags
ipIn	Packet	0		Flooding	DispatchProtocolReq, HopLimitInd, InterfaceInd, L3AddressInd, MacAddressInd, NetworkProtocolInd, PacketProtocolTag
ipIn	Packet	0		NextHopForwarding	DispatchProtocolReq, HopLimitInd, InterfaceInd, L3AddressInd, MacAddressInd, NetworkProtocolInd, PacketProtocolTag, ErrorRateInd?, Ieee802SapInd?, SignalPowerInd?, SignalTimeInd?, SnirInd?, Ieee80211ChannelInd?, Ieee80211ModeInd?
ipIn	Packet	0		AdaptiveProbabilisticBroadcast	DispatchProtocolInd, DispatchProtocolReq, InterfaceInd, L3AddressInd, MacAddressInd, MacAddressReq, NetworkProtocolInd, PacketProtocolTag
ipIn	Packet	0		ProbabilisticBroadcast	DispatchProtocolInd, DispatchProtocolReq, InterfaceInd, L3AddressInd, MacAddressInd, MacAddressReq, NetworkProtocolInd, PacketProtocolTag
ipIn	Packet	0		WiseRoute	DispatchProtocolReq, InterfaceInd, L3AddressInd, MacAddressInd, NetworkProtocolInd, PacketProtocolTag

Outgoing messages (observed)

gate	msg	kind	ctrl	destModule	tags
ipOut	Packet	0		Flooding	DispatchProtocolReq, L3AddressReq, PacketProtocolTag
ipOut	Packet	0		NextHopForwarding	DispatchProtocolReq, L3AddressReq, PacketProtocolTag
ipOut	Packet	0		AdaptiveProbabilisticBroadcast	DispatchProtocolReq, L3AddressReq, PacketProtocolTag
ipOut	Packet	0		ProbabilisticBroadcast	DispatchProtocolReq, L3AddressReq, PacketProtocolTag
ipOut	Packet	0		WiseRoute	DispatchProtocolReq, L3AddressReq, PacketProtocolTag

Packet operations (observed)

chunkType	packetAction
	peekData
ByteCountChunk	insertAtBack
EchoPacket	insertAtBack, peekAtFront, popAtFront

Shared Tagging operations (observed)

tagType	tagAction
DispatchProtocolReq	addTag
L3AddressInd	getTag
L3AddressReq	addTag
NetworkProtocolInd	getTag
PacketProtocolTag	addTag

Source code

//
// This module provides a mechanism to test network layer connectivity
// using echo request/response messages similar to that of ICMP.
//
simple EchoProtocol
{
    parameters:
        @display("i=block/control");
    gates:
        input ipIn;
        output ipOut;
}

File: src/inet/networklayer/common/EchoProtocol.ned

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