gov.nist.antd.ssf.net
Class DropTailQueue

java.lang.Object
  |
  +--SSF.Net.droptailQueue
        |
        +--gov.nist.antd.ssf.net.DropTailQueue

All Implemented Interfaces:

packetQueue

public class DropTailQueue

extends droptailQueue

This class extends the SSF.NET.droptailQueue to take care of MPLS. Because MPLS includes the queuing delay if the NIC is a LSR interface, the queue should transmit a message without delay. Otherwise the queue is used as a simple dropTailQueue.

 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:

borchert

, rouil

Field Summary

private _NIC	forNIC The _NIC this queue is attached.
private PacketQueueMonitor	myMonitor The queue monitor.

Fields inherited from class SSF.Net.droptailQueue

pktCount, pktDropCount, pktDropped

Constructor Summary

DropTailQueue()

Method Summary

void	config(NIC nic, com.renesys.raceway.DML.Configuration cfg) Overwrite the config method to check if the MPLS module is in the Node
boolean	enqueue(ProtocolMessage msg) Overwrite the enqueue to exclude any queuing delay if MPLS is in the Node
void	setMonitor(PacketQueueMonitor mon) Set reference to a correctly configured class implementing the Java interface PacketQueueMonitor.

Methods inherited from class SSF.Net.droptailQueue

getNumberOfBitsInQueue, init

Methods inherited from class java.lang.Object

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

Field Detail

forNIC

private _NIC forNIC

The _NIC this queue is attached.

myMonitor

private PacketQueueMonitor myMonitor

The queue monitor.

Constructor Detail

DropTailQueue

public DropTailQueue()

Method Detail

config

public void config(NIC nic,
                   com.renesys.raceway.DML.Configuration cfg)

Overwrite the config method to check if the MPLS module is in the Node

Specified by:

config in interface packetQueue

Overrides:

config in class droptailQueue

Parameters:

nic - The attached NIC

cfg - The configuration of the queue.

enqueue

public boolean enqueue(ProtocolMessage msg)

Overwrite the enqueue to exclude any queuing delay if MPLS is in the Node

Specified by:

enqueue in interface packetQueue

Overrides:

enqueue in class droptailQueue

Parameters:

msg - The ProtocolMessage to enqueue

setMonitor

public void setMonitor(PacketQueueMonitor mon)

Set reference to a correctly configured class implementing the Java interface PacketQueueMonitor.

Overrides:

setMonitor in class droptailQueue