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P4 Flow Cache

This repository hosts the P4 code of the Flow Cache use case.

In particular, the files are structured as follows:

  • flowcache.p4 contains the P4 code implementing the Flow Cache use case, employing the extended P4 language constructs needed to describe the per-flow stateful extensions.
  • flowcache_IR.p4 contains the standard P4 code that does not employ the extended P4 constructs. It is used to be compiled with the P4 compile (p4c) whose compiled output is used as a scaffold. In fact, we exploit this intermediate compiled version to manually add in the JSON the stateful extensions in order to configure the extended bmv2 software switch with the stateful primitives.
  • flowcache_IR_hacked.json is the manually modified JSON used to configure the extended bmv2 implementation.

DEMO video

A video of the DEMO is available below:

video