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Evaluation of the UDLR environment Takeshi Usui [email protected]

Evaluation of the UDLR environment Takeshi Usui [email protected]

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Page 1: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Evaluation of the UDLR environment

Takeshi Usui

[email protected]

Page 2: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Today my presentation

Introduction about my research topic “The evaluation of the UDLR network  environment”

Introduction of the monitoring for UDLR Request to each UDL operators from me

Page 3: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Introduction of my research topic

“The evaluation of the UDLR network environment “

The Background The UDL partners usually have the narrow

band link for the terrestrial return link The traffic from the partners go throughout

the narrow band link to Feed. For the narrow terrestrial link,partners can’t

use the UDL effectively.

Page 4: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

UDL is wide-area broadcast link,but return link is point to point.The ability of Return link is various.

Page 5: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Motivation

Much Data traffic go throught the UDL,but the terrestrial return link is necessary Web browzing request packet File transfer request packet

We want to have a bidirectional communication using UDL Using Audio,and Movie

Page 6: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

狭帯域

AI3 network

Narrow band    Qos available Point

Receiver(many)

Feeder

ISPPartners ISP

Page 7: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

My research topic

What is minimum requriment of the terrestrial link for some application

QoS is effective or not in Border Router This is depending of the partners network

I will research

Page 8: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Now I monitor the nature of UDLR network What a kinds of application is used? How much bandwidth is used?

I classify the UDLR network environment Application using is effectiv or not What kinds of return link do we need the UDL link? QoS is effective or not

Page 9: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp
Page 10: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Protocol monitoring

I use the “tcpdump”and “tcpdstat” Tcpdstat

We can get summary information of a tcpdump file.

Page 11: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp
Page 12: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Example(CHULA)

Page 13: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp
Page 14: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Traffic monitoring①

Mrtg monitors the sfc-udl-feed.(http://www.ai3.net/op/mrtg/)But,we don’t know how much partners use in “udl shared link”

Page 15: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp
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Traffic monitoring②

This   tools is base on “rrdtool”,and my tiny program.

We can monitor the each partner’s traffic ,and the time trend.

Page 17: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp
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I summary these to “ http://udl-monitor.ai3.net/”.

Please see the page.

Page 20: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

My request to UDL operators

I want to research the nature of the terrestrial link Bandwidth,Packet loss,Straight delay

Please make my account to the UDLR Router in your network I set up the measurement program in your router

By using the data,I classify the UDLR environment

Page 21: Evaluation of the UDLR environment Takeshi Usui Takeshi@sfc.wide.ad.jp

Next step

I research what a kinds of QoS technology is effective Ex. Any queueing technology,duplicated pack

et methods

I design the tunnel relay router ,which purpose reduce the feed load,and decrease the pass router.