DASH Workgroup Meeting Minutes 9/27/2023

[Kristina Moore]

Hello DASH Community –thank you for your time on Wednesday! 

Per the Project Board (below), we were able to close another 2 Issues this week.   @Riff Jiang from MSFT presented an early/draft update proposal for the DASH Pipeline Packet Flow Update to gather early feedback, which may be continued in the next Behavioral Model WG meeting.   

Thank you to @Chris Sommers and @Yusef Skinner for leading the call this week – I will see you all next week 😊 

As always, with respect to any of our DASH meetings  - Community (Wednesdays), or Behavioral Model (Thursdays) – please let me know if there are PRs, Q&A, or items you would like to discuss or present. 

The DASH YouTube channel link is here to subscribe / access WG content (and click the bell to receive notifications). 

See you on 10/5/2023

Meeting Title:  SONiC-DASH-Workgroup Community Meeting #86

Attendees (19):

DASH Group to join: https://groups.google.com/g/sonic-dash     

DASH-Test-Workgroup Group to join: https://groups.google.com/g/sonic-dash-test-workgroup

 

Agrawal, Ashutosh - Intel	Marian Pritsak - NVidia	Oleksandr Ivantsiv - NVidia	Veerappan, Senthilnathan - AMD
Chris Sommers - Keysight	McCollum, Macy - Intel	Prince Sunny - MSFT	Yakiv Huryk - NVidia
Jeevan - Arista	Mircea Dan Gheorghe - Keysight	Riff Jiang - MSFT	Yusef Skinner - MSFT
Kamil Cudnik - MSFT	murali Venkateshaiah - Cisco	Saad Mazhar - DreamBigSemi
Kumaresh Perumal - MSFT	mxiao - Arista	Vattem, Phaniraj - Dell

Discussion - PRs/Issues/Documentation for review, comments, suggestions

 

DASH Community Upcoming Project Action Items

 

 

 

Discuss:

 

Riff Jiang - MSFT - Presenting/Proposing - DASH Pipeline Packet Flow Update Proposal

Motivation:  to improve pipeline definition and flexibility - and gather early feedback
Examples:

-Inbound pipeline missing mapping stages and port level mapping

-Difficult to add new or customized routing types

-Routing actions behave differently under different routing types

-DASH objects could be expanded to more than MSFT scenarios

Goal:  simplify the Mind Model, improve flexibility

 

High Level Slides

 

 

 

 

 

 

 

How to bind below the SAI? 

 

 

 

 

 

 

 

 

-Expose the routing types as a table

-Pipeline can run anywhere; host, appliance, MoR, etc…

-How does VNI reach VM?  Uses VXLAN tunnel with reserved VNI.  As long as you have the IP, you can route the packet through the pipeline. 

-Should we discuss this further in the Behavioral Model Working Group?

-Ideas is to have routing actions 'defined' and 'extended'.

-Inbound is not fully modeled, would be nice to have this enhancement.

Next Week:

 

Please contact Kristina

 

                  

Sticky for Links/Data:
DASH Groups to join to receive Invites, Meeting Notes, and Comms	DASH: https://groups.google.com/g/sonic-dash       DASH-Test-Workgroup Group: https://groups.google.com/g/sonic-dash-test-workgroup	If anyone knows other people who would like info re: our community, please have them joins these groups for receive Comms, etc…
Links to Recording	Teams/Sharepoint: SONiC-DASH Workgroup Community Meeting-20230927_120325-Meeting Recording.mp4   YouTube: https://youtu.be/vnH11R8o2G4 HA moved to SmartSwitch LF group Behavioral Model Call - next week	9/27/2023 Community Call; please request access via the link if you are not able to view/listen                 Behavioral Model WG notes sent separately
Azure DASH GitHub Repo:	https://github.com/sonic-net/DASH
Test/Docs folder:	https://github.com/Azure/DASH/blob/main/test/docs/dash-test-workflow-saithrift.md	Ideal test workflow is here, converted to .md
SAI Thrift	SAI Thrift PR	Client server needed for testing
P4	https://opennetworking.org/p4/ and https://p4.org/working-groups/	Open source, domain-specific programming language for network devices, specifying packet processing for data plane devices (switches, routers, NICs, filters, etc.)
PINS	https://opennetworking.org/pins/
PNA consortium spec	https://p4.org/p4-spec/docs/PNA-v0.5.0.html	An architecture describing the structure and common capabilities of network interface controller (NIC) devices which process packets transiting one or more interfaces and a host system. Describes the structure and capabilities of the pipeline, and a user program, which specifies the functionality of the programmable blocks within that pipeline. For more information, see the P4 Language Consortium specifications
IPDK	Infrastructure Programmer Development Kit (ipdk.io) and https://github.com/ipdk-io/ipdk-io.github.io	IPDK is an open source, vendor agnostic framework of drivers and APIs for infrastructure offload and management which runs on a CPU, IPU, DPU or switch. IPDK runs in Linux and uses a set of well-established tools such as DPDK and P4 to enable network virtualization.
bmv2	https://github.com/p4lang/behavioral-model	The second version of the reference P4 software switch, nicknamed bmv2 (for behavioral model version 2). The software switch is written in C++11. It takes as input a JSON file generated from your P4 program by a P4 compiler and interprets it to implement the packet-processing behavior specified by that P4 program
DPDK	https://www.dpdk.org/	DPDK is the Data Plane Development Kit which consists of libraries to accelerate packet processing workloads running on a wide variety of CPU architectures.

     

 

Thank you again for your participation…

Kristina Moore MBA, M.S., CISSP - Azure Core Principal PM / DASH
Office: 425-722-7720     Mobile: 425-876-2040     Email: kri...@microsoft.com
DASH Group to join: https://groups.google.com/g/sonic-dash    
DASH-Test-Workgroup Group to join: https://groups.google.com/g/sonic-dash-test-workgroup