Chaining-Box: A Transparent Service Function Chaining Architecture Leveraging BPF

Latency control in service chaining using P4-based data plane programmability

“…Data plane programmability at the SDN level introduces a further acceleration degree to SFC, allowing the offloading of selected network functions inside programmable devices. The work in [21] proposes the adoption of a chaining-box, developed as a Berkeley Packet Filter (BPF), a dedicated sequence of stages performing all the needed service function actions and achieving up to 40% latency decrease with respect to standard solutions. The work in [22] exploits strict source routing to deploy SFC-based traffic steering including SFC labeling and tableless switches forwarding based on label computation.…”