MPLSPacketScheduler

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gov.nist.antd.mpls.mgmt.mpls_interface
Class MPLSPacketScheduler

java.lang.Object
  |
  +--gov.nist.antd.mpls.mgmt.mpls_interface.MPLSPacketScheduler

Direct Known Subclasses:: PriorityScheduler, RoundRobinScheduler, WFQScheduler

public abstract class MPLSPacketScheduler
extends java.lang.Object

The DiffServPacketScheduler is the basic framework of MPLS Packet Scheduler (PriorityScheduler, RoundRobinScheduler, and WFQScheduler). Each MPLS 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.

 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:: EunHyuk Lim (ehlim@antd.nist.gov, othree28@hotmail.com)

Field Summary

MPLSPacketScheduler childScheduler
          Field childScheduler - Child Scheduler

boolean debug
          Field debug - True if debug

java.lang.String hostID
          Field HostID - Local Host ID

boolean isActive
          Field isActive - True if it is active

boolean isPrimary
          Field isPrimary - True it is primary scheduler

Host localHost
          Field localHost - Local Host Object

MPLSInterfaceInfo mplsInterfaceInfo
          Field mplsinterfaceinfo - MPLS Interface Information

double nextSchedulingTime
          Field nextSchedulingTime - Next Scheduling Time

MPLSPacketScheduler parentScheduler
          Field parentScheduler - Parent Scheduler

double schedulingBurstSize
          Field SchedulingBurstSize - Scheduling Burst Size

java.util.Vector schedulingQueueTable
          Field SchedulingQueueTable - Scheduling Queue Table

double schedulingRate
          Field SchedulingRate - Scheduling Rate

Timer schedulingTimer
          Field SchedulingTimer - Scheduling Timer

Constructor Summary

MPLSPacketScheduler()


Method Summary

void createSchedulingTimer()
          This method creates a scheduling timer for in 1 second.

void createSecondaryScheduler(java.lang.String ClassName)
          Method createSecondaryScheduler Create the secondary scheduler

MPLSPacketScheduler getChildScheduler()
          Method getChildScheduler

MPLSPacketScheduler getParentScheduler()
          Return the parent scheduler.

void holdingScheduler()
          Method holdingScheduler

void init(MPLSInterfaceInfo minfo)
          Method init

void initSecondary(MPLSPacketScheduler mps)
          Method initSecondary Initialize the secondary scheduler

void packetForwarding(ProtocolMessage message, ProtocolSession fromSession)
          Method packetForwarding (former PacketForwarding(ProtocolMessage))

abstract void scheduling()
          Schedules the messages

abstract MessageWrapper secondaryScheduling()
          Method secondaryScheduling

void setNextSchedulingTimer(double waittime)
          Method setNextSchedulingTimer

void setSchedulingRate(double srate)
          Method setSchedulingRate Set the scheduler Rate

void startScheduling()
          Method startScheduling

Methods inherited from class java.lang.Object

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

Field Detail

mplsInterfaceInfo

public MPLSInterfaceInfo mplsInterfaceInfo

Field mplsinterfaceinfo - MPLS Interface Information

localHost

public Host localHost

Field localHost - Local Host Object

hostID

public java.lang.String hostID

Field HostID - Local Host ID

isActive

public boolean isActive

Field isActive - True if it is active

debug

public boolean debug

Field debug - True if debug

isPrimary

public boolean isPrimary

Field isPrimary - True it is primary scheduler

schedulingRate

public double schedulingRate

Field SchedulingRate - Scheduling Rate

schedulingBurstSize

public double schedulingBurstSize

Field SchedulingBurstSize - Scheduling Burst Size

schedulingQueueTable

public java.util.Vector schedulingQueueTable

Field SchedulingQueueTable - Scheduling Queue Table

nextSchedulingTime

public double nextSchedulingTime

Field nextSchedulingTime - Next Scheduling Time

schedulingTimer

public Timer schedulingTimer

Field SchedulingTimer - Scheduling Timer

parentScheduler

public MPLSPacketScheduler parentScheduler

Field parentScheduler - Parent Scheduler

childScheduler

public MPLSPacketScheduler childScheduler

Field childScheduler - Child Scheduler

Constructor Detail