Package org.cloudbus.cloudsim.network.switches

Class AggregateSwitch

java.lang.Object

org.cloudbus.cloudsim.core.CloudSimEntity

org.cloudbus.cloudsim.network.switches.AbstractSwitch

org.cloudbus.cloudsim.network.switches.AggregateSwitch

All Implemented Interfaces:

Cloneable, Comparable<SimEntity>, Runnable, Identifiable, Nameable, SimEntity, Switch

public class AggregateSwitch
extends AbstractSwitch

This class represents an Aggregate Switch in a Datacenter network. It interacts with other Datacenter in order to exchange packets.

Please refer to following publication for more details:

• Saurabh Kumar Garg and Rajkumar Buyya, NetworkCloudSim: Modelling Parallel Applications in Cloud Simulations, Proceedings of the 4th IEEE/ACM International Conference on Utility and Cloud Computing (UCC 2011, IEEE CS Press, USA), Melbourne, Australia, December 5-7, 2011.

Since:

CloudSim Toolkit 1.0

Author:

Saurabh Kumar Garg, Manoel Campos da Silva Filho

Nested Class Summary

Nested classes/interfaces inherited from interface org.cloudbus.cloudsim.core.SimEntity

SimEntity.State

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DOWNLINK_BW	Default downlink bandwidth of AggregateSwitch in Megabits/s.
static final int	LEVEL	The level (layer) of the switch in the network topology.
static final int	PORTS	Default number of aggregation switch ports that defines the number of EdgeSwitch that can be connected to it.
static final double	SWITCHING_DELAY	Default delay of AggregateSwitch in milliseconds.

Fields inherited from interface org.cloudbus.cloudsim.core.SimEntity

NULL

Fields inherited from interface org.cloudbus.cloudsim.network.switches.Switch

NULL

Constructor Summary

Constructors

Constructor	Description
AggregateSwitch(CloudSim simulation, NetworkDatacenter dc)	Instantiates a Aggregate AbstractSwitch specifying the Datacenter that are connected to its downlink and uplink ports and corresponding bandwidths.

Method Summary

Modifier and Type	Method	Description
int	getLevel()	Gets the level (layer) of the Switch in the network topology, depending on whether it is a RootSwitch (layer 0), AggregateSwitch (layer 1) or EdgeSwitch (layer 2).
protected void	processPacketDown(SimEvent evt)	Sends a packet from uplink to Datacenter connected through a downlink port.
protected void	processPacketUp(SimEvent evt)	Sends a packet from down switch or host to Datacenter connected through an uplink port.

Methods inherited from class org.cloudbus.cloudsim.network.switches.AbstractSwitch

addPacketToBeSentToFirstUplinkSwitch, addPacketToSendToDownlinkSwitch, addPacketToSendToHost, addPacketToSendToUplinkSwitch, bandwidthByPacket, downlinkTransferDelay, getDatacenter, getDownlinkBandwidth, getDownlinkSwitches, getDownlinkSwitchPacketList, getHostPacketList, getPorts, getSwitchingDelay, getUplinkBandwidth, getUplinkSwitches, getUplinkSwitchPacketList, getVmHost, packetTransferDelay, processEvent, processHostPacket, setDatacenter, setDownlinkBandwidth, setPorts, setSwitchingDelay, setUplinkBandwidth, shutdown, startInternal, uplinkTransferDelay

Methods inherited from class org.cloudbus.cloudsim.core.CloudSimEntity

cancelEvent, clone, compareTo, equals, getId, getName, getNextEvent, getNextEvent, getShutdownTime, getSimulation, getStartTime, getState, hashCode, isAlive, isFinished, isStarted, pause, run, run, schedule, schedule, schedule, schedule, schedule, schedule, scheduleFirst, scheduleFirst, scheduleFirstNow, scheduleFirstNow, scheduleNow, scheduleNow, selectEvent, send, send, sendNow, sendNow, setEventBuffer, setId, setName, setSimulation, setState, start, waitForEvent

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.cloudbus.cloudsim.core.Identifiable

getId

Methods inherited from interface org.cloudbus.cloudsim.core.Nameable

getName

Methods inherited from interface org.cloudbus.cloudsim.core.SimEntity

getShutdownTime, getSimulation, getStartTime, getState, isAlive, isFinished, isStarted, run, schedule, schedule, schedule, schedule, schedule, schedule, schedule, setName, setSimulation, setState, start

Field Details

LEVEL

public static final int LEVEL

The level (layer) of the switch in the network topology.

See Also:

• Constant Field Values

SWITCHING_DELAY

public static final double SWITCHING_DELAY

Default delay of AggregateSwitch in milliseconds.

See Also:

• Constant Field Values

DOWNLINK_BW

public static final long DOWNLINK_BW

Default downlink bandwidth of AggregateSwitch in Megabits/s. It also represents the uplink bandwidth of connected edge Datacenter.

See Also:

• Constant Field Values

PORTS

public static final int PORTS

Default number of aggregation switch ports that defines the number of EdgeSwitch that can be connected to it.

See Also:

• Constant Field Values

Constructor Details

AggregateSwitch

public AggregateSwitch(CloudSim simulation,
 NetworkDatacenter dc)

Instantiates a Aggregate AbstractSwitch specifying the Datacenter that are connected to its downlink and uplink ports and corresponding bandwidths.

Parameters:

simulation - the CloudSim instance that represents the simulation the Entity belongs

dc - The Datacenter where the switch is connected to

Method Details

processPacketDown

protected void processPacketDown(SimEvent evt)

Description copied from class: AbstractSwitch

Sends a packet from uplink to Datacenter connected through a downlink port.

Overrides:

processPacketDown in class AbstractSwitch

Parameters:

evt - event/packet to process

processPacketUp

protected void processPacketUp(SimEvent evt)

Description copied from class: AbstractSwitch

Sends a packet from down switch or host to Datacenter connected through an uplink port.

Overrides:

processPacketUp in class AbstractSwitch

Parameters:

evt - Event/packet to process

getLevel

public int getLevel()

Description copied from interface: Switch

Gets the level (layer) of the Switch in the network topology, depending on whether it is a RootSwitch (layer 0), AggregateSwitch (layer 1) or EdgeSwitch (layer 2).

Returns:

the switch network level