Design of a high-performance RSVP-TE hardware signaling accelerator

Haobo Wang, Malathi Veeraraghavan, Ramesh Karri, Tao Li

Research output: Contribution to journalArticlepeer-review


Signaling protocols, primarily used to set up and teardown connections, are essential in connection-oriented networks. Up to now, signaling protocols are mostly implemented in software for two reasons: complexity and the requirement for flexibility. Adversely, the price paid is in performance. Software implementations of signaling protocols are rarely capable of handling over 1000 calls/s. Corresponding call setup delays per switch are in the order of milliseconds. To improve performance for high-speed networks, we implemented a subset of the resource reservation protocol-traffic engineering signaling protocol in reconfigurable field programmable gate array hardware. Our implementation demonstrates the feasibility of 1000x speedup vis-à-vis software implementations. The impact of this work is far-reaching in that it enables connection-oriented networks to support new applications that require rate guarantees but have short call holding times.

Original languageEnglish (US)
Pages (from-to)1588-1595
Number of pages8
JournalIEEE Journal on Selected Areas in Communications
Issue number8
StatePublished - Aug 2005


  • Generalized multiprotocol label switched (GMPLS)
  • Hardware-acceleration
  • Resource reservation protocol- traffic engineering (RSVP-TE)
  • Signaling

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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