NLANR/MNA Current Activities

1. NLANR/MNA Current Activities Hans-Werner Braun Ronn Ritke NLANR/MNA (UCSD/SDSC) http://mna.nlanr.net/ Funded by the National Science Foundation/CISE/SCI cooperative agreement no. ANI-0129677 (2002)

2. NLANR/MNA • The mission of the NLANR Measurement and Network Analysis Group (NLANR/MNA) is to characterize the behavior of high performance connection (HPC) networks. • Network measurements are essential for assessing performance issues, identifying and locating problems (malfunctions, bottlenecks, • inefficiencies, incompatibilities, etc.) in ultrafast research networks • and in high-speed international links.

3. NLANR/MNA • To meet our research goals and support the community, we have created and are continuing to develop a Network Analysis Infrastructure (NAI). Two projects form the core of our research efforts: • the Passive Measurement and Analysis (PMA) project • the Active Measurement Project (AMP) • The NAI includes not only a growing collection of measurement data and multiple analyses, but also tools and methods, avenues for sharing information, and many collaborations (domestic and international) with other researchers both within and outside of the HPC network measurement community.

4. Passive Measurement and Analysis (PMA) project • Led by Joerg Micheel • Passive header trace data provides the means to study workload profiles in high speed environments, at measurement points strategically located to provide good overall network coverage. • Completely non-invasive, no impact on forwarding paths. • Currently take measurements at OC3 through OC48 speeds. Also working towards OC192c instrumentation on the Abilene backbone.

5. Available PMA Traces • PMA Daily Traces Archive (~ 2 GB per day) • Many special traces available, such as a variety of OC48 trace data and long, contiguous traces, including: • Abilene-I, the first publicly available OC48c backbone trace • Auckland-IV, a 45-day continuous trace • Bell Labs-I, one-week contiguous Internet access IP header trace • Coming soon: • Leipzig-I, an illustrated continuous 5-day GPS-synchronized IP header trace • NCAR-I, a one-hour trace from our new NCAR Gigabit tap.

6. New Metrics and Real-Time Analysis for PMA • We have developed a link utilization analysis tool. This instantaneous bandwidth/histogram sequence tool uses CDF (cumulative distribution functions) histograms to characterize the distribution of the gaps between packets. • A first-phase release of a scalable real-time network sensor has been completed that implements packet length statistics. Current efforts involve the creation of a two site prototype, to be used for testing.

7. 10GigE/OC192 Passive Monitor • Interface card • Chasis

8. Active Measurement Project (AMP) • Led by Tony McGregor • AMP performs site-to-site • active measurements • (RTT, topology, and loss) • and analyses which enable • network researchers and • engineers to track problems • and/or changes in HPC • performance. • The monitoring mesh of 150 AMPs allows engineers to quickly identify the location, extent, and duration of network events.

9. Current AMP Research Activities • Moving AMP into new domains: other national meshes, deeper into campuses, more international sites, and a meta measurement system. • To facilitate this, NLANR/MNA is reimplementing the original AMP software into a package easily installed on a variety of hardware and software bases. The AMP package will be made freely available, with some limited support given. • We will encourage, promote, and manage a meta-measurement system, formed from selected cross-project measurements, creating measurement linkages between projects.

10. AMP IPMP • We have developed a new measurement protocol, the IP Measurement Protocol (IPMP), which allows Internet devices to insert time stamps into packets as they move through the network, creating an "audit trail" for Internet data. • In addition to designing and developing the protocol, we are utilizing it in the AMP network measurement mesh and on wireless networks. • We have submitted the protocol for standardization by the Internet Engineering Task Force (IETF). http://www.ietf.org/internet-drafts/draft-mcgregor-ipmp-03.txt

11. Active measurement deployment status UAlaska Washington State U. UWashington Oregon State Montana State MTU UVermont NDSU UWisc- Milwaukee UOregon UWisc MSU SDSMT Dartmouth URochester Startap WSU Iowa State UIowa NTNU MIT NWU UMass BU UWyoming UMich UIC PSU UConn Harvard FNAL Columbia Yale ColoState NCSA CMU/PSC UDel UPenn NCAR UIUC UMBC Princeton IU WVU JHU ACCESS UCBoulder Kansas State UMd UC NSF UMissouri GMU Georgetown UCB UofUtah UKansas UVirginia ODU Stanford SLAC Oklahoma State WUSTL UCSC NCREN/NCSC UTK Vanderbilt UofOklahoma UNC-CH Duke UCLA CSU-SB NCSU ASU GATech UC-Irvine UNM UAH CSUPomona Mississippi State UofGeorgia SDSC UArizona UCSD Emory U. SMU UAB SDSU NMSU UA FSU Rice UFlorida UHawaii UCF USF UMiami UWaikato

12. Visualization of Slammer worm using NLANR/MNA Cichlid tool

13. International Collaborations • Just as the Internet has expanded into a global network, the more • advanced high-speed networks for scientific and academic research in • the United States and other countries are also growing and linking up • with one another. Many of the challenges that face intra-national • high-speed networks are more severe in international networks. • Network researchers and system administrators around the world are collaborating with NLANR/MNA researchers by hosting one or more of our AMP monitors and establishing measurement and analysis research projects of their own.

14. International Collaborations (Cont’d1) • We currently have AMP machines in Australia, Brazil, Canada, Finland, Germany, Holland, Hungary, Ireland, Japan, Korea, Mexico, New Zealand, Norway, Taiwan, and Thailand. • We are now conducting measurements from the AMP monitor on the NaukaNet link at StarLight to more than 30 sites in Russia. http://amp.nlanr.net/active/amp-naukanetnwu/russia/body.html. • Collaborating with the GLORIAD project (http://www.gloriad.org).An NLANR AMP will soon be deployed in Moscow. • We are in discussions regarding placing an AMP monitor in Beijing, China.

15. International Collaborations (Cont’d-2) • We are working closely with the Pacific Rim Applications & Grid Middleware Assembly (PRAGMA). • Australia and Korea have developed programs in collaboration with NLANR/MNA to create national AMP meshes, to instrument and characterize the performance of their domestic research networks. • The KISTI group in Korea has an NLANR AMP machine. Their own AMP mesh currently has 13 sites. http://amp.kreonet2.net/ • All seven Australian-owned AMP machines are in place ready for deployment into a mesh. Australia hosts an NLANR AMP in Sydney.