Where does all this data come from?
The data comes from the route servers, which is a total of 5Gb.
Is the data accurate?
It can be happening. The data has been sanity checked with ISPs and a few others are doing similiar work, and their data shows the same trends.
Who cares?
This traffic is bursty and so periodic examination of a routes status will not necessarily reflect the trends we observe. In any case, it is pretty easy to crash a high-end router with enough route instability.
IPN Terms ---
There is some concern that marketing folks will get some of this information and exploit it, so this information is ONLY to be used for engineering purposes.
A large number of participants are involved.
For more information, see http://compute.merit.edu/ipn.html
NetNow was created when NAPs and ISPs were saying that there was no problems on the network and users were seeing a 7% packet loss.
NetNow can plot packet loss between exchange points and ISPs.
Where does the data come from?
The RS is used as a probe platforms. A continuous stream of UDP packets is sent from one nap to another over a particular ISP's network.
Some problems
Down-time measurements are now available.
In the future, we want to try to understand how things happen. There is alot of things we don't understand.
Note: MRT now has support for IPv6.
CommerceNet believes that this work is important and would encourage folks to participate. There are real issues with trusting the Internet's performance. There will be end-to-end measurements that users will do.
Merit has done some work done in correlating the data from NPD with this work.