DASH Workgroup Meeting Minutes 10/11/2023

[Kristina Moore]

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

Similarly to the rhythm of the last few weeks, per the Project Board (below) we closed another 2 Issues this week.   We have 3 in the To-Do queue, and 6 In-Progress if there are volunteers. 

This week we expanded the discussion of PR448 ‘Add per ENI DSCP Setting’ submitted by NVidia (detailed notes below and in the PR). 

Next week’s DASH Community and DASH Behavioral Model calls will be cancelled, due to participants attending OCP – have fun at the conference!

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 10/25/2023

Meeting Title:  SONiC-DASH-Workgroup Community Meeting #88

Attendees (17):

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	Kristina Moore -MSFT	Mididaddi, Naren - Intel	Pranjal Shrivastava - MSFT
Alberto Villarreal - Keysight	Marian Pritsak - NVidia	Mircea Dan Gheorghe - Keysight	Prince Sunny - MSFT
Bud Grise - XSightLabs	Max Xiao - Arista	Narayanan, Swaminathan - AMD	Riff Jiang - MSFT
Chris Sommers - Keysight	McCollum, Macy - Intel	Oleksandr Ivantsiv - NVidia	Sushant Sharma - MSFT
			Vincent Legrand - XSightLabs

 

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

 

DASH Community Upcoming Project Action Items

 

 

 

Discuss:

PR448 Add per ENI DSCP setting

Motivation is to have 2 modes to set DSCP on the outer packet b/c DASH is performing all of the encapsulations

Tests are not passing in SAI Challenger - Marian to file an Issue and tag Andre from PLVision

We should expand this in the SONiC-DASH HLD; inner is the CX header; we would want to propagate the incoming outer, or have the datacenter manage the value in the tenant

Add this to Packet Flow draft PR449 in draft by Riff - add static action and tunnel action

 

TTL set to 64 - should we think about converging DSCP and TTL? 

 

Other Notes:

 

Inbound Pipeline Model Creation (Draft)

https://github.com/r12f/DASH/blob/user/r12f/pipeline/documentation/general/dash-sai-pipeline-packet-flow.md

Comment/Review welcomed!

 

 Introduction/Welcome: 

 n/a

 

Next Week:

Cancel DASH Community and Behavioral Model calls due to OCP Conference attendance

                  

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-20231011_090345-Meeting Recording.mp4   YouTube: https://youtu.be/9jO1V1NQCjk HA moved to SmartSwitch LF group Behavioral Model Call - next week	10/11/2023 Community Call; please request access via the link if you are not able to view/listen
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