Standards
Google [site:https://p4.org/p4-spec/docs In-band Network Telemetry / after 2020-01-01]
In-band Network Telemetry (INT) Dataplane Specification Version 2.1
- The P4.org Applications Working Group.
- Contributions from Alibaba, Arista, CableLabs, Cisco Systems, Dell, Intel, Marvell, Netronome, VMware
- 2020-11-11
- https://p4.org/p4-spec/docs/INT_v2_1.pdf
Telemetry Report Format Specification Version 2.0
- The P4.org Applications Working Group
- Contributions from CableLabs, Cisco Systems, Intel, VMware, Xilinx
- 2020-10-08
- https://p4.org/p4-spec/docs/telemetry_report_v2_0.pdf
P416 Portable Switch Architecture (PSA) (working draft)
- The P4.org Architecture Working Group
- 2021-04-02
- https://p4.org/p4-spec/docs/PSA.htm
Articles
What is INT (In-band Network Telemetry), July 21, 2022, written by Asterfuison
Network Measurement by Changhoon Kim, Barefoot Networks
Standford CS344, Spring 2019
https://cs344-stanford.github.io/lectures/Lecture-4-Chang-Kim-BFN.pdf
Prior Research
INT Demo presented via Barefoot & EdgeCore, 2018
(PT) https://opennetworking.org/wp-content/uploads/2018/12/Data-Plane-Telemetry-ONF-Connect-Public.pdf
(Code) https://github.com/Azure/SONiC/blob/gh-pages/doc/barefoot_dtel/Dtel-SONiC.md
Dtel functaionality can be configured by editing config_db.json, No CLI supported.
(Main Engineer) Shruthi Krishnan ( currently works at Google )
https://www.linkedin.com/in/shruthi-krishnan-4193774/details/experience/A
Staff Software EngineerStaff Software Engineer
Barefoot NetworksBarefoot Networks
Jan 2017 - Oct 2019 · 2 yrs 10 mos
~ Led team that upstreamed Data-plane Telemetry support in SONiC (open source project for network routers)
GN4-3 WP6 INT team (DPP), 2021 ~
Data Plane Programming
https://wiki.geant.org/display/NETDEV/DPP
https://github.com/orgs/GEANT-DataPlaneProgramming/repositories
| int-collector | INT data → eBPF, XDP → InfluxDB |
P4-based INT implementation for bmv2-mininet and Tofino platforms | |
| int-analytics | Grafana dashboard of InfluxDB |
https://events.geant.org/event/1104/
int_telemetry,srcip=217.77.95.213,dstip=195.113.172.46,srcp=54474,dstp=17000 origts=78325098270654,dstts=1605187313616122575,seq=1031173654,delay=1605108988517851921, sink_jitter=128891,reordering=0 1605187313616122575