- Introduction -
HENP & ESnet Sites
- Pinging of SF Bay Area ISPs
- Pinging of SLAC Collaborators
- Non-ping Internet Monitoring
- Sites with traceroute
- Further Information
PingER Summary Reports |
PingER Detail Reports |
PingER Tools |
PingER Help |
Index of Links on this Page
In order to provide a better expectation of the network performance
between sites that SLAC collaborates with, some of the major BaBar sites started monitoring the response time (by
using the IP Ping facility).
In 1995 this work was extended by the
ESnet Network Monitoring Task Force (NMTF)
In April 1997 the work was further extended with the creation of an
Monitoring Working Group at the request of
Committee on Future Accelerators (ICFA) to cover the needs of the High
Energy and Nuclear Physics (HENP) community. In 1998 the
Cross Industry Working Team (XIWT) adopted
the PingER tools developed out of the above efforts
and used them to monitor
their member sites.
For more information on the monitoring techniques see the Tutorial on Internet Monitoring at SLAC. Some of this
work is funded by a
Field Work Grant for
Internet End-to-end Performance
Ping response and packet loss information is available from
sites, each of which is monitoring many Remote
Requirements for WAN Hosts
for more on how remote hosts are selected).
There is also a set of
sites that all monitoring sites monitor.
For more information on this monitoring see the Report of the
ICFA-NTF Monitoring Working Group.
Details of the tools, collectively known as PingER,
are described in and available via PingER Tools
from the ICFA-NTF WG on Monitoring.
SLAC supports Residential Services to let you connect your
computer from home to the SLAC network. To assist in trouble shooting
and setting expectations we monitor the
routers at ISPs and in people's homes.
- Long term (going back for many months)
information is available as:
- PingER detail reports for
tables of hundreds of remote sites seen from
multiple monitoring/collection sites and going back for many months.
- PingER summary reports for
tables of ping metrics by groups of sites for specified month
(default is the most recently completed month).
- Short term (last day or so)
information is available in two forms:
* page is only visible at SLAC, + requires password.
- Connectivity Status provides tabular information for the most recent
- Plots of recent ping response & packet loss time series and frequency
distributions for selected sites
(selection is made via a form).
- You can Generate Ping Network Performance Graphs
for selected monitoring site/remote site pairs within selected intervals.
- Monitoring Activities at HENP & ESnet Sites
provides pointers to other HENP & ESnet network
Other (non-ping) Internet Monitoring
- Internet Monitoring Sites of Interest
- This link has moved to:
- Network Organizations of Interest
- This link has moved to:
- Number of Hosts on the Internet
- Real time estimate and plot of the number of hosts on the Internet.
- Internet Service Providers (ISPs)
- Atlas of Cyberspace
- Maps of ISPs and Internet Backbone Networks.
- BARRNET (Bay Area Regional Research
- BBN Techwatch
- Boardwatch magazine
- The Boardwatch Magazine provdes a Guide to the Internet.
- DANTE (Delivering Academic Networks to
- Data Communications ISP
- Ebone is a major pan-European
Backbone connecting over 60 regional networks in more than 25 countries to the Global
- ESnet (Energy Sciences Network).
- Palo Alto Cable Modem Service
- Commercial cable modem service is now available to residents and
businesses within Palo Alto Cable Co-op's service area,
- Russ Haynal's ISP Page
- This page is also useful to anyone interested in the major ISP's, and how
Kroll's Internet Network Maps
- WinterLAN a Bay Area ISDN Local
of Domestic ISPs
- by Network Computing Magazine, June 1, 1996. This is an in-depth studies
of seven domestic Internet Service Providers (ISPs).