[e2e] two questions about the Internet

[Ping Pan]

Sally Floyd wrote:
> 
> The new questions:
> 
> ROUND-TRIP TIMES (HOPS, NUMBER OF ASes) OF PACKETS?
> For packets on a particular link, each packet could be assigned an
> estimated round-trip time, a number of ASes for the end-to-end
> path, etc, based on the IP source and destination addresses for
> that packet.  For packets on a particular link, what can we say
> about the distribution of round-trip times, or of the number of hops
> traversed, or the number of ASes traversed, or number of continents
> traversed, or (this is harder) the number of congested links traversed?
> 

Hi,

Hop-counters: http://www.nlanr.net/NA/Learn/wingspan.html
AS length: http://moat.nlanr.net/ASPL/ (from University of Oregon)

BTW, there are several good pages on Internet questions:
1. Henning Schulzrinne:
http://www.cs.columbia.edu/~hgs/internet/traffic.html
2. Merit: http://www.merit.edu/ipma/reports/
3. NLANR: http://www.nlanr.net/NA/Learn/

- Ping Pan