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Application Layer Packet Processing Using PISA Switches.

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  • 1Department of Computer Engineering, KTH Royal University of Technology, SE-114 28 Stockholm, Sweden.

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Summary
This summary is machine-generated.

This study introduces Protocol Independent Switch Architecture (PISA) for application layer data processing, enhancing network visibility and performance. PISA solutions significantly boost application identification speeds, addressing cost and scalability challenges for operators.

Keywords:
P4deep packet inspectionprogrammable switchesprotocol independent switch architecturesoftware-defined networksstream processorvirtualization

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Area of Science:

  • Computer Science
  • Networking

Background:

  • Traditional network switches lack application layer data processing capabilities.
  • Vendor lock-in and limited flexibility hinder telecommunication operators.
  • Scalability and cost issues plague existing deep packet inspection (DPI) and next-generation firewall (NGFW) systems.

Purpose of the Study:

  • To propose and evaluate a Protocol Independent Switch Architecture (PISA) solution for processing application layer data.
  • To enable comprehensive application content inspection within network switches.
  • To address cost and scalability limitations in current network security and management solutions.

Main Methods:

  • Leveraging PISA's programmable switch architecture and streaming data processors.
  • Developing interpreted code in a domain-specific language for application-specific functions.
  • Conducting experimental studies to measure performance improvements in application identification.

Main Results:

  • The proposed PISA solution enables outstanding application visibility and content inspection.
  • Experimental results show a 5.5 to 47.0 times performance increase in application identification systems without optimization.
  • The approach effectively utilizes limited compute resources for enhanced application awareness.

Conclusions:

  • PISA offers a flexible and scalable solution for network operators seeking greater control and reduced costs.
  • Integrating PISA with DPI and NGFW systems overcomes current performance and scalability bottlenecks.
  • This approach provides a pathway for achieving Tbps-level application layer processing.