netsys-lab / panapi

PANAPI is an early implementation of an abstract API specification currently under development in the IETF TAPS working group, with added support for the SCION network architecture.

PANAPI - Path-aware Networking API

PANAPI is an early research implementation of a next-generation networking API to the transport layer. The latter is currently under development in the IETF TAPS working group. PANAPI is an open-source project that adds support for the SCION network architecture to a general purpose TAPS-like networking API. It is funded by the EU NGI Pointer initiative.

For more details, please check out the following links:

• PANAPI Paper
• PANAPI presentation to the IETF TAPS Meeting (March 23, 2022)
• Basic Path Selection presentation (May 5, 2022)
  • Demo video demonstrating Basic Path Selection
• Advanced Path Selection (Oct 7, 2022)
• Evaluation of Path Selection (Oct 7, 2022)

import "panapi" - The PANAPI Library

• Simple working code example, see examples/concurrent/README.md
• Add more code examples

cmd/daemon - The PANAPI Daemon

• applications selecting SCION as transport benefit from daemon running in the backend
• Graceful fallback to default behavior when daemon not running
• Expose Quic performance monitoring via RPC to Lua script executed by Daemon
• Create dedicated daemon README
• Lua scripting examples
  • cmd/daemon/simple.lua
  • cmd/daemon/pathselection.lua
  • cmd/daemon/selector_with_stats.lua

Protocol support

• TCP/IP support
• QUIC/IP support
• UDP/IP support
• QUIC/SCION support
• UDP/SCION support

Features

Path selection

• Scriptable path selector, implementing pan.Selector
  • working Lua Data model
  • working path ranking
  • live access to connection preferences like CapacityProfile
• Central path selection Daemon

Path quality

• Passive throughput monitoring
• Exposed to Lua script

Convenience features

• Different log levels

Other

• Full test coverage
• Code Documentation
• Move scripting selector to /pkg such that it could be used without the rest of PANAPI

Ported Applications

• spate traffic generator
• concurrent code example client/server timestamp echoing
• http
  • server
  • client

Affiliations