Flow Networking in Grid Simulations - Grid Computing: Infrastructure, Service, and Applications - page 383

Link FlowLink

delay_
baudte_
MTU_
attach()

queue_
activeFlows_
enque()
deque()
getNextHop()
registerFlow()
deregisterFlow()

gridsim.net.flowt

gridism

SimpleLink

queue_
enque()
deque()
getNextHop()

gridism.net

FlowRouter FilterFlow

tag_
flowID_
match()

linkTable
schedTable
hostTable
routerTable
forwardTable
processFlowPacket()
dequeue()

Router

attachRouter()
getScheduler()
advertiseHosts()

FlowPacket

RIPRouter

linkTable
schedTable
hostTable
routerTable
forwardTable
processNetPacket()
dequeue()

destID
srcID
size
remSize
bandwidth_
bottleneckID
baudRates_
links_
latency
updateTime
addLatency()
addLink()

<interface>
Packet

getSize()
getDestID()
getID()
getNetServiceType()
getLast()
getTag()

InfoPacket

numHop_
bandwidth_
entities_
entryTimes_
exitTimes
baudRates_
addHop()
addEntryTime()
addExitTime()
addBaudRate()

NetPacket

destID
scID
size
classType
totalPkts
last
pktld_

FlowOutput

outPort_
link_
baudRate_
pktID_
flowList_
setBackgroundTrac()
addLink()

Output

outPort_
link_
baudRate_
pktID_
packetList_
setBackgroundTrac()
addlink()

<<interface>>
NetIO

FlowInput

inPort_
link_
baudRate
activeFlows_
addLink()
setBackgroundTrac()
processPingRequest()
checkForecast()
updateForecast()

addLink(Link link)
getBaudRate()
setBackgroundTrac()

Input

inPort_
link_
baudRate_
addLink()
setBackgroundTrac()
processPingRequest()

FIGURE 15.3 GridSim l ow networking class diagram.

allocates a given FlowPacket, when multiple l ows are active on a given
link. If the bottleneck bandwidth of an existing l ow is affected by a new
l ow becoming active or an existing l ow becoming deactive, then FlowLink
notii es the remaining active l ows (which are held at the FlowInput of
their destination) of their new bottleneck bandwidth.
Routers for l ow-level networking are signii cantly less complicated than
those supporting the packet networking model, as they have minimal