uk.org.arlott.simon.hw.f24.lbsta
Class ConfigurationMessage

java.lang.Object
  uk.org.arlott.simon.hw.f24.lbsta.PacketData
      uk.org.arlott.simon.hw.f24.lbsta.BridgePacket
          uk.org.arlott.simon.hw.f24.lbsta.ConfigurationMessage

public class ConfigurationMessage
extends BridgePacket

Spanning Tree Algorithm Bridge Configuration Message.

Field Summary

private int	bridgeID Bridge ID (8 octets)
private int	costOfPathToRoot Cost of path to root (4 octets)
private int	forwardDelay Forward Delay (2 octets)
private int	helloTime Hello Time (2 octets)
private int	maxAge Max Age (2 octets)
private int	messageAge Message Age (2 octets)
private int	portID Port ID (2 octets)
private int	rootID Root ID (8 octets)
private boolean	topologyChange The Topology Change flag (1 bit)
private boolean	topologyChangeAcknowledgement The Topology Change Acknowledgement flag (1 bit)

Constructor Summary

ConfigurationMessage(boolean topologyChange, boolean topologyChangeAcknowledgement, int rootID, int costOfPathToRoot, int bridgeID, int portID, int messageAge, int maxAge, int helloTime, int forwardDelay)
<<<<<<< ConfigurationMessage.java Creates a new Configuration Message.

Method Summary

int	getBridgeID() Gets the Bridge ID.
int	getCostOfPathToRoot() Gets the Cost of path to root.
int	getForwardDelay() Gets the Forward Delay.
int	getHelloTime() Gets the Hello Time.
int	getMaxAge() Gets the Max Age.
int	getMessageAge() Gets the Message Age.
int	getPortID() Gets the Port ID.
int	getRootID() Gets the Root ID.
boolean	getTopologyChangeAcknowledgementFlag() Gets the status of the Topology Change Acknowledgement flag.
boolean	getTopologyChangeFlag() Gets the status of the Topology Change flag.

Methods inherited from class uk.org.arlott.simon.hw.f24.lbsta.BridgePacket

getMessageType, getProtcolIdentifier, getVersion

Methods inherited from class java.lang.Object

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

Field Detail

topologyChange

private boolean topologyChange

The Topology Change flag (1 bit)

topologyChangeAcknowledgement

private boolean topologyChangeAcknowledgement

The Topology Change Acknowledgement flag (1 bit)

rootID

private int rootID

Root ID (8 octets)

costOfPathToRoot

private int costOfPathToRoot

Cost of path to root (4 octets)

bridgeID

private int bridgeID

Bridge ID (8 octets)

portID

private int portID

Port ID (2 octets)

messageAge

private int messageAge

Message Age (2 octets)

maxAge

private int maxAge

Max Age (2 octets)

helloTime

private int helloTime

Hello Time (2 octets)

forwardDelay

private int forwardDelay

Forward Delay (2 octets)

Constructor Detail

ConfigurationMessage

public ConfigurationMessage(boolean topologyChange,
                            boolean topologyChangeAcknowledgement,
                            int rootID,
                            int costOfPathToRoot,
                            int bridgeID,
                            int portID,
                            int messageAge,
                            int maxAge,
                            int helloTime,
                            int forwardDelay)

<<<<<<< ConfigurationMessage.java Creates a new Configuration Message. , with inherited values from BridgePacket and a fixed Message Type of 0. ======= Creates a new Configuration Message, with inherited values from BridgePacket and a fixed Message Type of 0. >>>>>>> 1.4

Parameters:

topologyChange - Topology Change flag.

topologyChangeAcknowledgement - Topology Change Acknowldgement flag.

rootID - Root bridge ID.

costOfPathToRoot - Cost of Path to Root.

bridgeID - Bridge ID.

portID - Port ID.

messageAge - Message Age.

maxAge - Max Age.

helloTime - Hello Time.

forwardDelay - Forward Delay.

Method Detail

getTopologyChangeFlag

public boolean getTopologyChangeFlag()

Gets the status of the Topology Change flag.

Returns:

True if the flag is set.

getTopologyChangeAcknowledgementFlag

public boolean getTopologyChangeAcknowledgementFlag()

Gets the status of the Topology Change Acknowledgement flag.

Returns:

True if the flag is set.

getRootID

public int getRootID()

Gets the Root ID. (The correct range is 0-18446744073709551615)

Returns:

A value in the range 0-2147483647.

getCostOfPathToRoot

public int getCostOfPathToRoot()

Gets the Cost of path to root. (The correct range is 0-4294967295)

Returns:

A value in the range 0-2147483647.

getBridgeID

public int getBridgeID()

Gets the Bridge ID. (The correct range is 0-18446744073709551615)

Returns:

A value in the range 0-2147483647.

getPortID

public int getPortID()

Gets the Port ID.

Returns:

A value in the range 0-65535.

getMessageAge

public int getMessageAge()

Gets the Message Age.

Returns:

A value in the range 0-65535.

getMaxAge

public int getMaxAge()

Gets the Max Age.

Returns:

A value in the range 0-65535.

getHelloTime

public int getHelloTime()

Gets the Hello Time.

Returns:

A value in the range 0-65535.

getForwardDelay

public int getForwardDelay()

Gets the Forward Delay.

Returns:

A value in the range 0-65535.