net.clackrouter.component.simplerouter
Class ICMPTTLExpired

java.lang.Object
  net.clackrouter.component.base.ClackComponent
      net.clackrouter.component.simplerouter.ICMPTTLExpired

All Implemented Interfaces:

java.io.Serializable, Alarm

public class ICMPTTLExpired
extends ClackComponent
implements java.io.Serializable

Generates an ICMP TTL-Exceeded message when the router decrements the TTL of a forwarded packet to zero.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class net.clackrouter.component.base.ClackComponent

ClackComponent.Waiter

Field Summary

static int	IN
static int	NUM_PORTS
static int	OUT

Fields inherited from class net.clackrouter.component.base.ClackComponent

componentCell, m_has_error, m_log, m_name, m_num_ports, m_packetcount_in, m_packetcount_out, m_ports, mListeners, mRouter, pendingError, SIGNAL_ERROR_LEN_MSEC, UNIQUE_COUNT, view

Constructor Summary

ICMPTTLExpired(Router router, java.lang.String name)

Method Summary

void	acceptPacket(VNSPacket packet, int port_number) Accepts an expired IP packet and generates an ICMP TTL-Exceeded message with the IP packet as data.
java.awt.Color	getColor() The color this component should be rendered in, assuming a standard component rendering by the ComponentView.ComponentRenderer class.
protected void	setupPorts(int numports) Allocates an array of ClackPort objects to be used by this component

Methods inherited from class net.clackrouter.component.base.ClackComponent

createCopy, createInputPullPort, createInputPushPort, createOutputPullPort, createOutputPushPort, error, fireListeners, getComponentCell, getHierarchicalView, getLog, getName, getNumPorts, getPacketCountIn, getPacketCountOut, getPendingError, getPort, getPropertiesView, getRouter, getSerializableProperties, getTime, getTypeName, getUniqueCount, getView, handlePullRequest, hasError, initializeProperties, isHierarchical, isModifying, log, notifyAlarm, poll, registerListener, sendOutPort, setAlarm, setComponentCell, setName, setPendingError, setView, showErrorDialog, signalError, try_repaint, unregisterListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

IN

public static int IN

OUT

public static int OUT

NUM_PORTS

public static int NUM_PORTS

Constructor Detail

ICMPTTLExpired

public ICMPTTLExpired(Router router,
                      java.lang.String name)

Method Detail

setupPorts

protected void setupPorts(int numports)

Description copied from class: ClackComponent

Allocates an array of ClackPort objects to be used by this component

Overrides:

setupPorts in class ClackComponent

Parameters:

numports - the number of ports to create

acceptPacket

public void acceptPacket(VNSPacket packet,
                         int port_number)

Accepts an expired IP packet and generates an ICMP TTL-Exceeded message with the IP packet as data.

Overrides:

acceptPacket in class ClackComponent

Parameters:

packet - The pushed packet

port_number - The number of the port that this packet is arriving on

getColor

public java.awt.Color getColor()

Description copied from class: ClackComponent

The color this component should be rendered in, assuming a standard component rendering by the ComponentView.ComponentRenderer class.

Other renderers may ignore this value.

Overrides:

getColor in class ClackComponent

Returns:

the rendering color