pinger performance to bangladesh
Download
Skip this Video
Download Presentation
PingER performance to Bangladesh

Loading in 2 Seconds...

play fullscreen
1 / 8

PingER performance to Bangladesh - PowerPoint PPT Presentation


  • 315 Views
  • Uploaded on

PingER performance to Bangladesh. Prepared by Les Cottrell, SLAC for Prof. Hilda Cerdeira May 27, 2004. Partially funded by DOE/MICS Field Work Proposal on Internet End-to-end Performance Monitoring (IEPM), also supported by IUPAP. Methodology. Use ubiquitous ping

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' PingER performance to Bangladesh' - elina


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
pinger performance to bangladesh

PingER performance to Bangladesh

Prepared by Les Cottrell, SLAC

for Prof. Hilda Cerdeira

May 27, 2004

Partially funded by DOE/MICS Field Work Proposal on Internet End-to-end Performance Monitoring (IEPM), also supported by IUPAP

methodology
Methodology
  • Use ubiquitous ping
  • Each 30 minutes from monitoring site to target :
    • 1 ping to prime caches
    • by default send11x100Byte pkts followed by 10x1000Byte pkts
      • Low network impact + no software to install / configure / maintain at remote sites + no passwords / accounts needed = good for developing sites / regions
  • Record loss & RTT, (+ reorders, duplicates)
  • Derive throughput, jitter, unreachability …
architecture
Architecture
  • Hierarchical vs. full mesh

WWW

HTTP

Ping

SLAC

Reports & Data

Archive

FNAL

Archive

~35

Monitoring

Monitoring

Monitoring

Cache

Monitoring

Remote

1 monitor host

remote host pair

Remote

Remote

Remote

~550

regions monitored
Regions Monitored
  • Recent added NIIT PK as monitoring site
  • White = no host monitored in country
  • Colors indicate regions
  • Also have affinity groups (VOs), e.g. AMPATH, Silk Road, CMS, XIWT and can select multiple groups

Monitoring sites in ~ 35 countries

bangladesh
Bangladesh

RTT & Loss SLAC to www.ru.ac.bd Feb – May ‘04

RTT ms

Loss

indian sub continent
Indian sub-continent

Derived throughput = packet size/(RTT * sqrt(loss))

world
World
  • Log scale so straight line shows exponential improvement
  • Indian sub-continent 7 years behind Europe
  • Falling behind
more information
More Information
  • Contact [email protected] to request monitoring of a host/site in Bangladesh
    • Requirements for host being monitored
      • http://www.slac.stanford.edu/comp/net/wan-req.html
  • PingER
    • http://www-iepm.slac.stanford.edu/pinger/
  • ICFA/SCIC Monitoring Report Jan 2004
    • http://www.slac.stanford.edu/xorg/icfa/icfa-net-paper-jan04/
ad