NLANR is a research unit at the San Diego Supercomputer Center is to characterize the behavior of high performance connection (HPC) networks NLANR has developed the Network Analysis Infrastructure (NAI). We analyzed data from NLANR's Passive Measurement and Analysis (PMA) project.

The HPC sites are typically Internet 2 /abilene connected university campuses of OC3 or OC12 links

We present monthly data samples for three NLANR sites during the period of 1998 - 2001 from three NLANR sites. Individual applications have been aggregated into groups (e.g. file sharing, tunneling) by bytes, packets and flows. Traffic within each site differs from others. For instance the FLA traffic is dominated by peer-to-peer and news applications while the SDC has significantly more WWW data.

SITE	bytes	packets	flows
APN APAN connection at STARTAP OC3 ATM
FLA Florida Universities Gigapop OC3 ATM
SDC San Diego Supercomputer Center OC3 ATM