things to test

[simon.leinen at switch.ch (Simon Leinen)]

[on residential broadband connections]
Mikael Abrahamsson writes:
> Some things that comes to mind:

> speed
> latency to some points geographically near the user
> MTU of the connection
> If PMTUD works or not
> queueing (FIFO or something "better")
> antispoofing (BCP38) compliance
> filtering (IPv6 transition protocols for instance, lots more possible)
> buffer depth ingress/egress
> ECN
> ISP provided DNS resolver properties (DNSSEC, EDNS etc)

That's an excellent start.  I would add

* availability of global IP addresses (0-n)
* ability to connect to "unusual" ports (falls under "filtering")
* ability to accept connections
* interception of common TCP ports such as 80 and 25
* transparency for various header fields (addresses & ports? DSCP...)
* rate-limits for specific protocols (ICMP, BitTorrent...)
* latency and throughput for some popular sites/resources, including
  those using CDNs, at various times of day/week
...and of course...
* availability of IPv6

> I'm sure there are lots more, and this could probably not be done
> using a web browser driven application, but instead would have to be
> an application, thus harder to get people to use generally.

> Any work being done in this area already that someone can point to?

Check out M-Lab - http://www.measurementlab.net/
-- 
Simon.