Upload
jasmine-arlene-harmon
View
221
Download
0
Tags:
Embed Size (px)
Citation preview
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
2
Is Google Fiber useful for something other than ?
3
PhysicalTherapy-as-a-Service
4
Synchronous Big Data Problem
5
Troubleshooting Google Fiber!When everything works with static IP
The 40 Mbps mystery!!…
6
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!!…
7
Narada Metrics Integration with PTaaS
8
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…
9
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?
10
• 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
11
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
13
SMaaS App Deployment
14
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
15
Thank you for your attention!
16