Advanced Networking

The Advanced Networking group at Pittsburgh Supercomputing Center conducts research on network performance and analysis in support of high-performance computing applications. They also develop software to support heterogeneous distributed supercomputing applications and to implement high-speed interfaces to archival and mass storage systems.

Work done by the Advanced Networking group includes TCP implementations, TCP tuning, and software to monitor and improve network performance.

Research Projects

  • 3ROX –  The Three Rivers Optical Exchange (3ROX) is a regional network aggregation point, also called a GigaPoP, providing high speed commodity and research network access to sites in western and central Pennsylvania and West Virginia.

  • Web10G – Web10G promises innovations in performance, stability, optimization, and network diagnostics  to anyone who wants to fully exploit modern high bandwidth connections.   It provides users with have real-time statistics about their network connections, and allows them to fine-tune some characteristics of the connection to improve performance. Join the Web10G team on our mailing list, view the archives  or visit Web10G online!

  • KINBER and PennREN – The Keystone Initiative for Network Based Education and Research (KINBER) serves as coordinator for the construction and management of a Pennsylvania-wide fiber optic network, PennREN (Pennsylvania Research and Education Network).  PennREN will be accessible to educational, research, health care, and economic development partners seeking to aggregate services for their members and subscribers at affordable cost.


Networking Tools, software, and information


TCP performance tuning

  • TCP Performance Tuning
    • Presentation by Jamshid Mahdavi at the High Performance Data Networking conference at Northwestern University, 4/97
    • Presentation by Jeffrey Semke at the vBNS Techs workshop at Carnegie Mellon University, 5/98
  • Poll-Switch – SNMP poll a layer-2 device – Retrieving host and port information from a layer-2 switch running an SNMP agent.
  • Mac-Scan – Scan hosts on a VLAN or network for vulnerabilities
  • IP-Utils – Enable data communication via a simple API for various IP-based networking protocols

Networking Research Papers


Previous work

  • DANCES – The DANCES project (Developing Applications with Networking Capabilities via End-to-End SDN) is  developing tools to allow the scheduling of network resources much as compute resources are scheduled now, with the aim of reducing data transfer bottlenecks, a serious hindrance to scientifc research.
  • NPAD/pathdiag Automatic diagnostic server for troubleshooting end-systems and last-mile network problems.
  • SAMI (NIMI) Creating a Secure and Accountable Measurement Infrastructure
  • Web 100 Created to address automatic TCP buffer tuning.