DASH Workgroup Community Update 6/25/2025

[Kristina Moore]

Hello DASH Community –thank you for your time on Wednesday. Due to the increasing number of work items on the list, this week (below) I will remove ‘To Do’ and ‘Draft’ for brevity. 

Please note that I will cancel our call for tomorrow July 2^nd, 2025 due to ‘Azure Core No Meeting Week’ and to provide time if members are taking time off for the July 4^th week 😊.  We will resume on July 9^th, 2025 at 9am Pacific Time. 

This week we continue to have a potential contribution back up for grabs.  A volunteer to suggest a PR in the dash-sonic-hld (in the SONiC repo here) for commands to show ENI counters and DPU global metrics – please submit a PR if you are interested!

We’ve listed TCS for Issue #334 re: bulk API support in the SAI thrift RPC generator, thank you TCS for the support! 

Re: whether we have a DASH API -> SAI API equivalence in FastPath, we’ve pointed Keysight to PR666 by @Deven Jagasia to see if that will resolve their need. 

@Michal from the Azure SDN team discussed the need for versioning of objects in SONiC to improve performance and reconciliation (particularly for large states with many mappings and routes). They mentioned that a proposal for this is being refined and will be brought to the community for review.

 

For HAMrgD, the PR reviews are ongoing and that we hope to have all integrated by mid-July with end-to-end integration and automated testing to follow.

Lastly, the PRs to improve OrchAgent to enable DASH ZMQ feature flag, and the fix for software BFD overwrite are merged and completed. 

Follow-up tasks:

• Issue #334 Bulk API Support in the SAI Thrift RPC generator
DASH API Equivalent: Keysight to determine whether PR666 will resolve the “DASH equivalent for SAI ENI disable fast path data.” (Mircea)
Counters: Requesting help for ‘show ENI counters and DPU global metrics’
KVM Support for DASH Tests: Investigate the KVM support issue for DASH tests and provide an update. (Murali)
Review Draft PR for Attribute Mapping: Review the draft PR for the attribute mapping and provide comments or approval. (Michal)
HA Manager Integration: Ensure the HA Manager PRs are merged and start end-to-end integration testing. (Murali)

 

        

In Summary (full list below), since the last Community call we have:

7 PRs Completed (-1)

8 in To Do (- 1)

6 in Draft (+/- 0)

29 in Progress (-2)

9 Awaiting Review (-6)

 

Just a reminder that we would encourage/invite Community members to present to the Community (test runs or progress, new scenarios, etc…), just ‘r’ to let me know, or generate a PR in the repo.

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

Thank you for your time/contributions – see you on 7/9/2025

 

Meeting Title:  SONiC-DASH-Workgroup Community Meeting #152

Attendees (14):

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

Linux Foundation list: https://lists.sonicfoundation.dev/g/SONiC-Dash

 

Abdul Rouff - Nvidia	Marian Pritsak - Nvidia	Philipp Keydel - Synogate	Veerappan, Senthilnathan - AMD
Bud Grise - XSightLabs	Michal Zygmunt - MSFT	Ramesh Raghupathy - Cisco	Vivek Reddy Karri - Nvidia
Gagan Punathil Ellath - Nvidia	murali Venkateshaiah - Cisco	Sai Rama Mohan Reddy Singamala - Nvidia
Kristina Moore - MSFT	Oleksandr Ivantsiv - Nvidia	Swaminathan Balasubramanian - Keysight

 

 

 

 

 

 Full DASH Community Notes 😊  

• ENI and DPU Counters Contribution Request:   highlighted the completion of 8 PRs in the last week and the ongoing work in the HA area. Mentioned the need for someone to take on the task of showing ENI counters and DPU global metrics in the SONiC repo.
• PR Completion:   noted that 8 PRs were completed in the last week, following 14 PRs the previous week and 13 PRs before that. This indicates a consistent turnover of work items, with around 70 work items currently in progress.
• SAI Thrift Bulk API Support:   Satya was interested in contributing to the SAI Thrift Bulk API support which would be helpful to Keysight   
• DASH API to SAI API:   discussed the lack of a DASH API to SAI API equivalent for FastPath. Kristina did some research and concluded that there is no such equivalent.  @deven has PR666 in case it is related

• DASH API Attribute Proposal: Marian mentioned a proposal PR666 by Microsoft @deven to define three different attributes for different scenarios instead of a single attribute. They will check the status of this proposal.

• Improved OrchAgent to enable DASH ZMQ feature flag and the fixed software BFD overwrite are merged and completed.

• HA Notifications:   noted the completion of support for HA notifications, which was done by Jing and is located in the SWSS repo.

• Versioning of Objects in SONiC: Michal discussed the need for versioning of objects in SONiC to improve performance and reconciliation (particularly for large states with many mappings and routes). They mentioned that a proposal for this is being refined and will be brought to the community for review.

• Proposal Refinement: This proposal will aim to introduce versioning or hashing as metadata on different objects to facilitate quick state comparison.

• New PRs/Issues:

• Watchdog Tests:   mentioned new watchdog tests for DPU, contributed by NVIDIA.
• Yang Model Updates:   highlighted Yang model updates done by Jing.
• KVM Support:   mentioned the need for KVM support in DASH tests, noting that some configurations and traffic cannot be tested on KVM.

• HA Manager Development and Testing: Murali provided an update on the HA Manager development and testing, mentioning that PR reviews are ongoing and that they hope to have everything integrated by mid-July with end-to-end integration and automated testing to follow.

 

 

Sticky for Links/Reference:
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   Linux Foundation list: https://lists.sonicfoundation.dev/g/SONiC-Dash	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-20250625_090311-Meeting Recording.mp4   DASH Community YouTube: https://youtu.be/f2oa00dtp7A   HA moved to SmartSwitch LF group on Thursdays YouTube Behavioral Model: none this week	6/25/2025 DASH 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/sonic-net/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.
Linux Foundation SmartSwitch	https://lists.sonicfoundation.dev/g/sonic-smartswitch/calendar

  

Thank you again for your participation…

Kristina Moore MBA, M.S., CISSP - Azure Core Principal PM / DASH & SmartSwitch
Office: 425-722-7720     Mobile: 425-876-2040     Email: kri...@microsoft.com

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

Linux Foundation:  https://lists.sonicfoundation.dev/g/SONiC-Dash