This case shows the possibility to discover network problems via
monitoring of available bandwidth. The latest routing problems hits many
sites in US . The last situation (June 6th,2003) is similar to this which
we reported in our case Abilene (May-6/7).
Today, we could see this chnages on our
8 monitoring paths (from our 30). We can classify this changes into three types.
The first type (on Indiana.edu, umich.edu, in2p3.fr ) it was as big
The second type is visible in our path to nasa.gov. We can see
increasing cross traffic (as addiitional traffic appeared on the path
and the banwidth dropp according to this.
The last type is demonstrated on our path to ufl.edu,riken.jp and
Internet-2 and probably lbl.gov, where the bandwidth decrease was visible but
not so big.