Transcript asus case
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 40 Mbps performance on a 1 Gbps access network connection!!… 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. 7 Narada Metrics Integration with PTaaS 8 Importance of vantage points for perfSONAR Fun of working with ISPs and Users together… MU<->KC = 12 Mbps KC Home to 150.199.7.214 = 50 Mbps MU to 150.199.7.214 = 350 Mbps MU<->OSU = 360 Mbps MU to 150.199.4.146 = 347 Mbps OSU to 150.199.4.146 = 840 Mbps 9 Route path from KC to MU 1 2 3 4 5 6 7 8 9 10 11 12 13 <1 ms 1 ms 1 ms 1 ms 3 ms 1 ms 6 ms 12 ms 4 ms 4 ms 4 ms 4 ms 6 ms <1 ms 1 ms 1 ms 1 ms 2 ms 2 ms 4 ms 6 ms 4 ms 10 ms 4 ms 4 ms 4 ms Bottleneck <1 ms networkbox.home [192.168.1.1] ? segment? 2 ms 10.26.0.25 ? 1 ms ae9.bng01.mci122.googlefiber.net [192.119.17.142] ? 1 ms ae1.pr01.mci103.googlefiber.net [192.119.17.33] 1x10G 3 ms kc-core-01-tengige0-0-0-6-2.mo.more.net [150.199.7.205] 1x10G 1 ms umicn-kc-tengige0-1-0-1.um.more.net [150.199.7.253] 1x10G 4 ms umicn-cn-tengige0-0-0-1-1.um.more.net [150.199.4.169] 1x10G 4 ms umc-nn-i2.bb.missouri.edu [150.199.4.198] 2x10G 4 ms SOLO-xe010.1710.bb.missouri.edu [128.206.1.74] 2x10G 13 ms TEXUS3-SOLO-area0.bb.missouri.edu [128.206.130.194] 2x10G 4 ms RSCT1-TEXUS3.bb.missouri.edu [128.206.130.45] 2x10G 4 ms RSCN1-v300.bb.missouri.edu [128.206.2.203] 1x10G 4 ms ecaas1.rnet.missouri.edu [128.206.119.182] 1Gig host • Issues with ‘TCP Window Size settings’ in Windows OS – Hosts with default settings impacted Kinect sensor data throughput over wide-area network paths 10 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 Simulate • Collaborate with customer via conferences • Ship VMs back-and-forth • Iterate and improve component (i.e., Parameters, Geometry) • Apps for vertical • E.g., PipeFlow, CarPredictor, EduApp • Manufacture physical improvements Delivery New Component 12 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