Package org.cloudbus.cloudsim.network.switches

Class RootSwitch

java.lang.Object

org.cloudbus.cloudsim.core.CloudSimEntity

org.cloudbus.cloudsim.network.switches.AbstractSwitch

org.cloudbus.cloudsim.network.switches.RootSwitch

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Comparable<SimEntity>, java.lang.Runnable, Identifiable, Nameable, SimEntity, Switch

public class RootSwitch
extends AbstractSwitch

This class allows to simulate Root switch which connects Datacenters to external 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 3.0

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 long	DOWNLINK_BW	The downlink bandwidth of RootSwitch in Megabits/s.
static int	LEVEL	The level (layer) of the switch in the network topology.
static int	PORTS	Default number of root switch ports that defines the number of AggregateSwitch that can be connected to it.
static double	SWITCHING_DELAY	Default switching delay 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
RootSwitch(CloudSim simulation, NetworkDatacenter dc)	Instantiates a Root AbstractSwitch specifying what other Datacenter are connected to its downlink 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 if it is a root switch (layer 0), aggregate switch (layer 1) or edge switch (layer 2)
protected void	processPacketUp(SimEvent evt)	Sends a packet to Datacenter connected through a 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, getVmEdgeSwitch, getVmHost, packetTransferDelay, processEvent, processHostPacket, processPacketDown, setDatacenter, setDownlinkBandwidth, setPorts, setSwitchingDelay, setUplinkBandwidth, shutdownEntity, startEntity, uplinkTransferDelay

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

cancelEvent, clone, compareTo, equals, getId, getName, getNextEvent, getNextEvent, getSimulation, 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, setStarted, 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

getSimulation, 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

PORTS

public static final int PORTS

Default number of root switch ports that defines the number of AggregateSwitch that can be connected to it.

See Also:

Constant Field Values

SWITCHING_DELAY

public static final double SWITCHING_DELAY

Default switching delay in milliseconds.

See Also:

Constant Field Values

DOWNLINK_BW

public static final long DOWNLINK_BW

The downlink bandwidth of RootSwitch in Megabits/s. It also represents the uplink bandwidth of connected aggregation Datacenter.

Constructor Details

RootSwitch

public RootSwitch(CloudSim simulation, NetworkDatacenter dc)

Instantiates a Root AbstractSwitch specifying what other Datacenter are connected to its downlink ports, and corresponding bandwidths.

Parameters:

simulation - The CloudSim instance that represents the simulation the Entity is related to

dc - The Datacenter where the switch is connected to

Method Details

processPacketUp

protected void processPacketUp(SimEvent evt)

Description copied from class: AbstractSwitch

Sends a packet to Datacenter connected through a 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 if it is a root switch (layer 0), aggregate switch (layer 1) or edge switch (layer 2)

Returns:

the switch network level