user opt-in experiences in geni experiments: physicaltherapy-as-a-service &...

User Opt-in Experiences in GENI Experiments: PhysicalTherapy-as-a-Service & Simulation-as-a-Service

Prasad Calyam, Ph.D.Assistant Professor, Department of Computer Science

GEC22, March 2015

PhysicalTherapy-as-a-Service

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Is Google Fiber useful for something other than ?

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PhysicalTherapy-as-a-Service

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Synchronous Big Data Problem

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Troubleshooting Google Fiber!When everything works with static IP

The 40 Mbps mystery!!…

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Case of a Google Fiber Home in Kansas City

Google Fiber Ticket: Account # xxxxxxxxxxxxx, phone call with customer:

Tested @ 2:38 PM 1/8/2015: 91/92 (HP)Tested @ 2:40 PM 1/8/2015: 87/91 (Asus)Tested @ 2:42 PM 1/8/2015: 90/86 (HP)Tested @ 2:44 PM 1/8/2015: 88/66 (Asus)

Checked Speed & Duplex settings of HP device. Changed to Full 1 GBPS setting. Tested @ 2:49 PM 1/8/2015: 91/92 MBPS (HP) Restarted HP b/c it appeared that Speed & Duplex settings didn't take effect. Tested @ 2:54 PM 1/8/2015: 94/92 MBPS (HP).

CX advised me that he has a 3rd party router installed in between the NB and his PC's. CX asked if this would cause issues. I educated CX that it would b/c some routers will limit speeds to 100 MBPS. I requested the CX bypass the 3rd party router and HW directly to the NB. Only the Asus device could be HW'd directly to the NB. The Asus device is not GIG capable, and would not provide best results. 

40 Mbps performance on a 1 Gbps access network connection!!…

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Narada Metrics Integration with PTaaS

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KC Home to 150.199.7.214 = 50 Mbps

MU to 150.199.7.214 = 350 Mbps OSU to 150.199.4.146 = 840 Mbps

MU to 150.199.4.146 = 347 Mbps

MU<->OSU = 360 MbpsMU<->KC = 12 Mbps

Importance of vantage points for perfSONARFun of working with ISPs and Users together…

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Route path from KC to MU

1    <1 ms    <1 ms    <1 ms  networkbox.home [192.168.1.1] ?

2     1 ms     1 ms     2 ms  10.26.0.25 ?

3     1 ms     1 ms     1 ms  ae9.bng01.mci122.googlefiber.net [192.119.17.142] ?

4     1 ms     1 ms     1 ms  ae1.pr01.mci103.googlefiber.net [192.119.17.33] 1x10G

5     3 ms     2 ms     3 ms  kc-core-01-tengige0-0-0-6-2.mo.more.net [150.199.7.205] 1x10G

6     1 ms     2 ms     1 ms  umicn-kc-tengige0-1-0-1.um.more.net [150.199.7.253] 1x10G

7     6 ms     4 ms     4 ms  umicn-cn-tengige0-0-0-1-1.um.more.net [150.199.4.169] 1x10G

8    12 ms     6 ms     4 ms  umc-nn-i2.bb.missouri.edu [150.199.4.198] 2x10G

9     4 ms     4 ms     4 ms  SOLO-xe010.1710.bb.missouri.edu [128.206.1.74] 2x10G

10     4 ms    10 ms    13 ms  TEXUS3-SOLO-area0.bb.missouri.edu [128.206.130.194] 2x10G

11     4 ms     4 ms     4 ms  RSCT1-TEXUS3.bb.missouri.edu [128.206.130.45] 2x10G

12     4 ms     4 ms     4 ms  RSCN1-v300.bb.missouri.edu [128.206.2.203] 1x10G

13     6 ms     4 ms     4 ms  ecaas1.rnet.missouri.edu [128.206.119.182] 1Gig host

Bottleneck segment?

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• Issues with ‘TCP Window Size settings’ in Windows OS– Hosts with default settings impacted Kinect sensor data throughput over wide-area

network paths

Simulation-as-a-Service

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Advanced manufacturing design today requires iterative and collaborative work among multi-site engineering experts…

• Collect requirements• Reverse engineer

physical component (e.g., scans)

• Build CAD model for virtual component(s)

Model

• Collaborate with customer via conferences• Ship VMs back-and-forth

• Iterate and improve component (i.e., Parameters, Geometry)

Simulate• Apps for vertical

• E.g., PipeFlow, CarPredictor, EduApp

• Manufacture physical improvements

Delivery

New Component12

GENI for SMaaS Resource Brokering

Our environment uses GENI to provision resources to both App developer and App customers based on the individual requirements

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SMaaS App Deployment

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Summary of supporting GENI Services for User Opt-in

• Last-mile networks are a challenge– High-speed connections (e.g., Google Fiber in Kansas City, OARnet & MDC in Dublin,

OH) are needed, but not enough…– Users “feel” network is always the problem!

• Getting a GENI Rack into a city data center/experiment slice was necessary– Challenges with hosting, networking and platform setup

• Significant collaboration needed between App developers, network operators and users for testing and ensuring peak performance

– Not easy to translate ‘High Bandwidth’ & ‘Low Latency’ user requirements to suitable Cloud resource configurations in GENI

• Virtualization complicates performance troubleshooting– Is it the application, network or virtualization?

• Issues such as cost of the App/Service become important to users

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Thank you for your attention!

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