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

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

public class PriorityScheduler

extends MPLSPacketScheduler

Scheduler for the Priority Scheduling. In priority-based scheduling the higher priority packet flow exclusively use the bandwidth regardless of the lower-priority queue status.

 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)

, borchert , Chul Kim

Nested Class Summary

class

PriorityScheduler.PriorityInfo Class PriorityInfo

Field Summary

java.util.Hashtable	priorityQueueHTable Field PriorityQueueHTable - Priority Queue Table(HashTable)
java.util.Vector	priorityQueueVTable Field PriorityQueueVTable - Priority Queue Table(Vector)

Fields inherited from class gov.nist.antd.mpls.mgmt.mpls_interface.MPLSPacketScheduler

childScheduler, debug, hostID, isActive, isPrimary, localHost, mplsInterfaceInfo, nextSchedulingTime, parentScheduler, schedulingBurstSize, schedulingQueueTable, schedulingRate, schedulingTimer

Constructor Summary

PriorityScheduler()
Constructor PriorityScheduler

Method Summary

void	addPriorityQueue(MPLSSchedulingQueueEntry msqe) Method addPriorityQueue Add the Priority Queue to the table
void	init(MPLSInterfaceInfo minfo) Initializes the queue
MessageWrapper	priorityScheduling() Method PrioirtyScheduling
void	removePriorityQueue(MPLSSchedulingQueueEntry msqe) Method removePriorityQueue Remove the priority queue from table
void	scheduling() Scheduling the next message.
MessageWrapper	secondaryScheduling() Method SecondaryScheduling

Methods inherited from class gov.nist.antd.mpls.mgmt.mpls_interface.MPLSPacketScheduler

createSchedulingTimer, createSecondaryScheduler, getChildScheduler, getParentScheduler, holdingScheduler, initSecondary, packetForwarding, setNextSchedulingTimer, setSchedulingRate, startScheduling

Methods inherited from class java.lang.Object

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

Field Detail

priorityQueueHTable

public java.util.Hashtable priorityQueueHTable

Field PriorityQueueHTable - Priority Queue Table(HashTable)

priorityQueueVTable

public java.util.Vector priorityQueueVTable

Field PriorityQueueVTable - Priority Queue Table(Vector)

Constructor Detail

PriorityScheduler

public PriorityScheduler()

Constructor PriorityScheduler

Method Detail

init

public void init(MPLSInterfaceInfo minfo)

Initializes the queue

Overrides:

init in class MPLSPacketScheduler

Parameters:

minfo - The mpls information for the queue.

addPriorityQueue

public void addPriorityQueue(MPLSSchedulingQueueEntry msqe)

Method addPriorityQueue Add the Priority Queue to the table

Parameters:

msqe - - XXX

removePriorityQueue

public void removePriorityQueue(MPLSSchedulingQueueEntry msqe)

Method removePriorityQueue Remove the priority queue from table

Parameters:

msqe - - XXX

scheduling

public void scheduling()

Scheduling the next message.

Specified by:

scheduling in class MPLSPacketScheduler

secondaryScheduling

public MessageWrapper secondaryScheduling()

Method SecondaryScheduling

Specified by:

secondaryScheduling in class MPLSPacketScheduler

Returns:

The MessageWrapper

priorityScheduling

public MessageWrapper priorityScheduling()

Method PrioirtyScheduling

Returns:

ProtocolMessage - XXX