DiffServPacketScheduler

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gov.nist.antd.diffserv
Class DiffServPacketScheduler

java.lang.Object
  |
  +--gov.nist.antd.diffserv.DiffServPacketScheduler

Direct Known Subclasses:: PriorityScheduler, RoundRobinScheduler, WFQScheduler

public abstract class DiffServPacketScheduler
extends java.lang.Object

DiffServPacketScheduler is the basic framework of DiffServ Packet Scheduler (PriorityScheduler, RoundRobinScheduler, and WFQScheduler). Each DiffServ packet scheduler maintains relative parameters for priority scheduling, weight-based scheduling, and hybrid scheduling of two stage scheduling.
In priority-based scheduling the higher priority packet flow exclusively use the bandwidth regardless the of the lower-priority queue status. In weighted scheduling, weight for each queue is allocated, and the relative portion of the bandwidth is allocated to the queue according to its weight. DiffServPacketScheduler also configures the DataLinkMapping of the dispatched DiffServ packet from queue. Currently, MPLS LSP or usual IP packet forwarding can be configured as DataLink for DiffServ packet flow.

 =========================
 Example of DML definition
 =========================
  	# DiffServ Packet Scheduler Configuration
  	PacketScheduler [
   		name Priority use gov.nist.antd.DiffServ.PriorityScheduler
   		ClassType [ CT EF CT AF4 CT BF ]
   		_find .dictionary.DiffServ_Parameters.TrafficShaper
   		DataLink_Mapping[
   			MPLS_LSP [
   				pathID DiffServ-110-111-Priority
   				SetUpTime 13
   				Priority 6
   				_find .dictionary.DiffServ_Parameters.TrafficParameters
				NodeList [
					Node [ ID 110 ]	Node [ ID 120 ]	Node [ ID 220 ]
					Node [ ID 221 ] Node [ ID 121 ] Node [ ID 111 ]
				]
			]
		]
  	]

 This class was developed at the National Institute of Standards and
 Technology by employees of the Federal Government in the course of
 their official duties. Pursuant to title 17 Section 105 of the United
 States Code this software is not subject to copyright protection and
 is in the public domain.
 NIST assumes no responsibility whatsoever for its use by other parties,
 and makes no guarantees, expressed or implied, about its quality,
 reliability, or any other characteristic.
 

 We would appreciate acknowledgement if the software is used.
 

 NIST ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION AND
 DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING
 FROM THE USE OF THIS SOFTWARE.

Author:: Young-Tak Kim

Nested Class Summary

class DiffServPacketScheduler.SchedulingQueueEntry
          Inner class SchedulingQueueEntry

Field Summary

DiffServPacketScheduler childScheduler
          Field childScheduler - XXX

boolean debug
          Field debug - XXX

int DiffServFlowID
          Field DiffServFlowID - XXX

DiffServTrafficConditioner DSTConditioner
          Field DSTConditioner - XXX

DiffServFlowProfile FlowProfile
          Field FlowProfile - XXX

IP ipsess
          Field ipsess - XXX

boolean isActive
          Field isActive - XXX

boolean isMPLS
          Field isMPLS - XXX

boolean isPrimary
          Field isPrimary - XXX

boolean isWFQScheduler


Host localHost
          Field localHost - XXX

MPLSMgmt mplsmgmt
          Field mplsmgmt - XXX

java.util.Vector MPLSSignalingInfoList
          Field MPLSSignalingInfoList - XXX

java.lang.String name
          Field name - XXX

double nextSchedulingTime
          Field nextSchedulingTime - XXX

DiffServPacketScheduler parentScheduler
          Field parentScheduler - XXX

DiffServPacketScheduler.SchedulingQueueEntry parentScheulerInfo
          Field parentScheulerInfo - XXX

double SchedulingBurstSize
          Field SchedulingBurstSize - XXX

java.util.Vector SchedulingQueueTable
          Field SchedulingQueueTable - XXX

double SchedulingRate
          Field SchedulingRate - XXX

double SchedulingRateForSecondary
          Field SchedulingRateForSecondary - XXX

java.util.Vector SchedulingRateList
          Field SchedulingRateList - XXX

Timer SchedulingTimer
          Field SchedulingTimer - XXX

S_CRLDP sCRLDPInfo
          Field sCRLDPInfo - XXX

double SumWeight
          Field SumWeight - XXX

java.lang.String useClass
          Field useClass - XXX

Constructor Summary

DiffServPacketScheduler()


Method Summary

void ActivateQueue(DiffServPacketScheduler dsps)
          Method ActivateQueue

void config(com.renesys.raceway.DML.Configuration cfg)
          Method config

void configClassType(com.renesys.raceway.DML.Configuration cfg)
          Method configClassType

void configDataLinkMapping(com.renesys.raceway.DML.Configuration cfg)
          Method configDataLinkMapping

void configSecondaryScheduler(com.renesys.raceway.DML.Configuration cfg)
          Method configSecondaryScheduler

void configTrafficShpaer(com.renesys.raceway.DML.Configuration cfg)
          Method configTrafficShpaer

void createSchedulingTimer()
          Method createSchedulingTimer

void DeActivateQueue()
          Method DeActivateQueue

java.lang.String getClassTypeInfo()
          Method getClassTypeInfo

void holdingScheduler()
          Method holdingScheduler

void init(int flowid, DiffServTrafficConditioner dstc)
          Method init

void initSecondary(DiffServPacketScheduler dsps)
          Method initSecondary

void LSPEstablish()
          Method LSPEstablish

boolean PacketForwarding(ProtocolMessage message)
          Method PacketForwarding

abstract void Scheduling()
          Method Scheduling.

abstract MessageWrapper SecondaryScheduling()
          Method SecondaryScheduling

void setLSPReleaseTimer(double endtime)
          Method setLSPReleaseTimer

void setLSPStartTimer(double starttime)
          Method setLSPStartTimer

void setNextSchedulingTimer(double waittime)
          Method setNextSchedulingTimer

void setSchedulingInfoToChildScheduler(DiffServPacketScheduler.SchedulingQueueEntry sinfo)
          Method setSchedulingInfoToChildScheduler

void setSchedulingRate()
          Method setSchedulingRate

void setSchedulingRate(double rate)
          Method setSchedulingRate

void setupLSPandQueue()
          Method setupLSPandQueue

void setWFQRx(double newRate)
          Short concise description.

void startSchedule()
          Method startSchedule

Methods inherited from class java.lang.Object

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

Field Detail

DSTConditioner

public DiffServTrafficConditioner DSTConditioner

Field DSTConditioner - XXX

debug

public boolean debug

Field debug - XXX

localHost

public Host localHost

Field localHost - XXX

isMPLS

public boolean isMPLS

Field isMPLS - XXX

mplsmgmt

public MPLSMgmt mplsmgmt

Field mplsmgmt - XXX

MPLSSignalingInfoList

public java.util.Vector MPLSSignalingInfoList

Field MPLSSignalingInfoList - XXX

sCRLDPInfo

public S_CRLDP sCRLDPInfo

Field sCRLDPInfo - XXX

ipsess

public IP ipsess

Field ipsess - XXX

DiffServFlowID

public int DiffServFlowID

Field DiffServFlowID - XXX

FlowProfile

public DiffServFlowProfile FlowProfile

Field FlowProfile - XXX

name

public java.lang.String name

Field name - XXX

useClass

public java.lang.String useClass

Field useClass - XXX

isPrimary

public boolean isPrimary

Field isPrimary - XXX

SchedulingRateList

public java.util.Vector SchedulingRateList

Field SchedulingRateList - XXX

SchedulingRate

public double SchedulingRate

Field SchedulingRate - XXX

SchedulingBurstSize

public double SchedulingBurstSize

Field SchedulingBurstSize - XXX

SchedulingTimer

public Timer SchedulingTimer

Field SchedulingTimer - XXX

SchedulingRateForSecondary

public double SchedulingRateForSecondary

Field SchedulingRateForSecondary - XXX

isActive

public boolean isActive

Field isActive - XXX

SchedulingQueueTable

public java.util.Vector SchedulingQueueTable

Field SchedulingQueueTable - XXX

SumWeight

public double SumWeight

Field SumWeight - XXX

isWFQScheduler

public boolean isWFQScheduler

nextSchedulingTime

public double nextSchedulingTime

Field nextSchedulingTime - XXX

parentScheduler

public DiffServPacketScheduler parentScheduler

Field parentScheduler - XXX

parentScheulerInfo

public DiffServPacketScheduler.SchedulingQueueEntry parentScheulerInfo

Field parentScheulerInfo - XXX

childScheduler

public DiffServPacketScheduler childScheduler

Field childScheduler - XXX

Constructor Detail