Class RootSwitch

java.lang.Object

org.cloudsimplus.core.CloudSimEntity

org.cloudsimplus.network.switches.AbstractSwitch

org.cloudsimplus.network.switches.RootSwitch

All Implemented Interfaces:

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

public class RootSwitch
extends AbstractSwitch

Allows simulating a Root switch that connects Datacenters to an external network. It interacts with another Datacenter to exchange packets.

Please refer to the 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.cloudsimplus.core.SimEntity

SimEntity.State

Field Summary

Fields

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

Fields inherited from interface org.cloudsimplus.core.SimEntity

NULL

Fields inherited from interface org.cloudsimplus.network.switches.Switch

NULL

Constructor Summary

Constructors

Constructor	Description
RootSwitch(CloudSimPlus simulation, NetworkDatacenter dc)	Instantiates a Root Switch, specifying which another Datacenter is 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 on whether it is a RootSwitch (layer 0), AggregateSwitch (layer 1) or EdgeSwitch (layer 2).
protected void	processPacketUp(SimEvent evt)	Sends a packet from a down switch or host to the Datacenter connected through an uplink port.

Methods inherited from class org.cloudsimplus.network.switches.AbstractSwitch

addPacketToBeSentToFirstUplinkSwitch, addPacketToSendToDownlinkSwitch, addPacketToSendToHost, addPacketToSendToUplinkSwitch, bandwidthByPacket, downlinkTransferDelay, getDownlinkSwitchPacketList, getHostPacketList, getUplinkSwitchPacketList, getVmHost, packetTransferDelay, processEvent, processHostPacket, processPacketDown, setDownlinkBandwidth, setPorts, setSwitchingDelay, setUplinkBandwidth, shutdown, startInternal, uplinkTransferDelay

Methods inherited from class org.cloudsimplus.core.CloudSimEntity

cancelEvent, compareTo, getNextEvent, getNextEvent, 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, start, waitForEvent

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.cloudsimplus.core.Identifiable

getId

Methods inherited from interface org.cloudsimplus.core.Nameable

getName

Methods inherited from interface org.cloudsimplus.core.SimEntity

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

Methods inherited from interface org.cloudsimplus.network.switches.Switch

getDatacenter, getDownlinkBandwidth, getDownlinkSwitches, getPorts, getSwitchingDelay, getUplinkBandwidth, getUplinkSwitches, setDatacenter

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 AggregateSwitches 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(CloudSimPlus simulation,
 NetworkDatacenter dc)

Instantiates a Root Switch, specifying which another Datacenter is connected to its downlink ports and corresponding bandwidths.

Parameters:

simulation - the CloudSimPlus instance that represents the simulation the Switch belongs 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 from a down switch or host to the 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