DASH Workgroup Community Update 4/22/2026

0 views

Skip to first unread message

Kristina Moore

unread,

Apr 28, 2026, 6:54:58 PM (5 days ago) Apr 28

to sonic...@lists.sonicfoundation.dev, sonic...@googlegroups.com, Changrong Wu, Michael Aronovici (aronovic), Lawrence Lee, Clark Lee (guizhao.lh@alibaba-inc.com), Eddie Ruan, Yanfeng, Yuezhou, Murthy Vakkalagadda, Selvarajan, Arunachalam, Arun, Doddapaneni, Krishna, Moopath velayudhan, Mukesh, Veerappan, Senthilnathan, Sundara Murthy Gurunathan, Tatikonda, Srinivas, Venkatesh Srinivasan, Vijay Srinivasan, Marc Meunier, Chid, Harrish SJ, Madhu, Israel Meilik, Jai Kumar, Mohammad Hanif (mohammad.hanif@broadcom.com), Sandeep Balani, Suresh Satapati, Kannan Selvaraj, Carol Gal (cgal), Nishanth Sampath Kumar (nissampa), Dave Gabrielson (dagabrie), Don Ewald (doewald), Dylan Peterson (dypeters), Yue Gao (yuega2), G Boudre (grboudre@cisco.com), Joshua Stoner (jostoner), Krithika Srinivas (kritsrin), murali Venkateshaiah (muraliv), Narasimha Nelluri (nnelluri), peve...@cisco.com, Ramesh Raghupathy (ram), Robert Murphy (robermur@cisco.com), san...@cisco.com, selr...@cisco.com, TJ Barker (tjbarker), Venkat Sukavan (vsukavan@cisco.com), Joseph White, Phaniraj Vattem, Shawn Dube, Venkatesan Mahalinga, Faisal Khan, Farhan Tariq, Mohammad Qasim Farooqi, Saad Mazhar GMail, Zafir, Zarif Hafeez GMail, Ahmed Guetari, Ben Novak, Chris McDonald, Joel Moses, John Gruber, Tony Torzillo, Ziv Saar, Ravindran Suresh, Amith, Andy Fingerhut, Arham Nasir, Erum Frahim, Farhan Tariq, Farhat Ullah, Ghani, Ixim, Kwangsuk, Lin Songnan, Mahendar Byra, Meyappan K Gmail, Nitesh, Piotr P, Ravi, RS4681, Sahni Aditya, Venkat External, Yoyo, Dean Lee, Alberto Villarreal, alex....@keysight.com, Chris Sommers, Manodipto Ghose, Mircea Dan Gheorghe, Nitesh Jha, Swaminathan Balasubramanian, Vinod Kumar, Alexander Cheskis, Mike Woster, Kishore Atreya, Sonny Mei, Brad House, Balachandar Rajarathinam, Christian Kuhtz, John Evans, Rawal, Amol (Nokia - US/Westford), Abdul Rouff, Amita Gavirneni, E Blatt, Eilon Greenstein, Gagan Punathil Ellath, Idan Hac, Liat Grozovik, Marian Pritsak, Nikhil Sandugula, Oleksandr Ivantsiv, Paul Cummins, Shay Schlafman, Venice Hawa, Yohad Tor, Yuval Degani, Madhu, Jamal Hadi Salim, Andriy Kokhan, Leonid Khedyk, Mykola Zhuravel, Tetyana Zubova, Michael Offel, Philipp Keydel, VolodymyrX Mytnyk, Aditya Sahni, dash....@tcs.com, josephjes...@tcs.com, Pranay R Sahay, sarada...@tcs.com, Satya Valli Rama, Sohan Prabhu (TATA CONSULTANCY SERVICES LTD), Richard Wu, D Chandra (dchandra@upscaleai.com), R Vaidyanathan (rvaidyanathan@upscaleai.com), V Vij (vvij@upscaleai.com), arham...@xflowresearch.com, Kanza Latif, Muhammad Ali, rimsh...@xflowresearch.com, Bud Grise, Ezra Y, John C Carney, Ted Weatherford, Vincent L, Ajinkya Deore, Anil Reddy Pannala, Anish Narsian, Arun Jeedigunta, David Zhang, Deven Jagasia, Dvir Shamay, Evan Langlais, Jae Park, Jing Zhang, Kalyan Kumar Gokavarapu, Ram Kakani, Renuka Manavalan, Rita Hui, Suresh Kumar Nedunchezhian, Tao Deng, Tommaso Pimpo, Vasundhara Volam, Vrinda Kochar, Xin Liu (CLOUD), Yanzhao Zhang, Yuqing Wei, Zhixiong Niu

Hello DASH Open Source Community – thanks for your time last week. Again, we had a lot of work occur over the time period, please see this link DASH/DPU/SmartSwitch Weekly Review for full details.

For the period of April 9 – April 22, 2026 we showed very high activity with 52 PRs created and 45 PRs merged across 10 repositories. The 86.5% merge rate – significantly higher than the prior period's 64.8% reflect a busy two-week sprint focused on:

Maximum DASH Scale Unblocking – Multi-repo coordination (sairedis, gnmi, buildimage, swss-common) to lift config pipeline limits
HA Test Module Completion – Modules 3, 6, 7, and 8 all merged, plus flexible DPU-pair testing
ENI Counter Infrastructure – Proper OID mapping and lifecycle cleanup for long-running deployments
Flow API in SWSS – Foundational for stateful HA failover, now merged alongside updated HLDs
DPU Diagnostics Expansion – Flow dump in techsupport, improved upgrade tooling

The high sonic-mgmt activity (27 of 52 PRs created, 24 of 45 merged) continues to reflect the investment in test infrastructure needed to validate DASH/SmartSwitch across the full feature matrix.

In terms of Community, we welcomed Varun and Marty from UpScaleAI this time – welcome to you both! I’ve offered a separate onboarding session to them to explain project goals and processes if needed.

Thank you for your time/contributions – see you on 4/29/2026
The DASH channel link is here to subscribe / access WG content (and click the bell to receive notifications).

Top of fold summary: comprehensive view for Apr 9 – Apr 22 2026

Quick Overview

Query Period: April 9 – April 22, 2026 (14 days)
Keywords: DPU, DASH, SmartSwitch, Smart
Scope: All sonic-net repositories

📈 Key Findings

52 PRs created (3.7 PRs per day)
45 PRs merged
Merge Rate: 86.5% (45 merged out of 52 created)
12 active repositories with DASH/DPU/SmartSwitch activity
Testing dominates with sonic-mgmt accounting for the majority of PRs
Platform work with sonic-buildimage at 28% of PRs
Primary Focus Areas: Maximum DASH scale configuration, HA testing modules, ENI counter infrastructure, Flow API support, platform diagnostics

Repository Health - Overview of repositories with DASH/DPU/SmartSwitch activity during April 9 – April 22, 2026

Repository	Relevant Items	Activity Level
sonic-net/sonic-mgmt	24 PRs merged + 27 PRs created	🟢 Very High
sonic-net/sonic-buildimage	9 PRs merged + 9 PRs created	🟢 High
sonic-net/sonic-sairedis	4 PRs merged + 6 PRs created	🟢 High
sonic-net/sonic-swss	3 PRs merged + 2 PRs created	🟡 Moderate
sonic-net/sonic-swss-common	1 PR merged + 3 PRs created	🟡 Moderate
sonic-net/SONiC	2 PRs merged + 0 PRs created	🟡 Moderate
sonic-net/sonic-utilities	0 PRs merged + 2 PRs created	🟡 Moderate
sonic-net/sonic-gnmi	0 PRs merged + 2 PRs created	🟡 Moderate
sonic-net/sonic-host-services	1 PR merged + 1 PR created	🟡 Low
sonic-net/sonic-platform-daemons	1 PR merged + 0 PRs created	🟡 Low

Below the fold – Full DASH Community Notes

Meeting Title: SONiC-DASH-Workgroup Community Meeting #175

Attendees (17):

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

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

Bud Grise - XSightLabs	Gurunathan, Sundara murthy - AMD	Marian Pritsak - Nvidia	Swami Balasubramanian - Keysight
Deepti Chandra - Cisco	Judson Wilson - Nvidia	Michael Aronovici - Cisco	Varun Vij - UpScaleAI
Abdul Rouff Basheer - Nvidia	Kristina Moore - MSFT	murali Venkateshaiah - Cisco	Vasundhara Volam - MSFT
Gagan Punathil Ellath - Nvidia	Ma, Marty - HPE	Ravi Vaidyanathan - UpScaleAI	Veerappan, Senthil - AMD
			Vivek Reddy Karri - Nvidia

Full DASH Community Notes 😊

Smart Switch HA HLD Update

· The Smart Switch HA HLD received updates including a new architecture diagram and revisions to failure notification and state transition logic.

· Contributions credited to @Changrong Wu with involvement from the Cisco team.

HA Test Plan Progress (Module 8 Complete)

· @Michael Aronovici (aronovic) reported that Module 8 of the HA test plan — covering BGP session shutdown/startup and config reload scenarios — was completed and merged.

· 7 of 9 modules are now merged; work is ongoing for Module 9.

ENI Counter Cleanup Fix

· @Lawrence Lee contributed a fix to clean up stale ENI counter entries from COUNTERS_DB, addressing incomplete cleanup from prior runs.

DPU Image Upgrade Utility

· Lawrence (SONiC team) added a utility for upgrading DPU images in SmartSwitch testbeds, ensuring image consistency during nightly test runs.

Other Notable Fixes Mentioned

· Private Link source IP changes – Contributed by the NVIDIA team

· Pensando reboot handling fix – Addresses DPU reboot behavior on Pensando/Elba platforms

· DHCP fixes – Infrastructure reliability improvements

· Bulk remove post-processing fix – Significant fix for routing entry bulk remove operations

Platform Discussion: Cisco SmartSwitch Helper Script

A technical discussion was raised by @vasundhara volam regarding changes to the SmartSwitch helper script affecting Cisco platforms:

· Question raised: Whether skipping DPU reboot during a full switch reboot on Cisco was intentional

· Senthil at AMD Confirmed that a full switch reboot on Cisco automatically reboots the DPU, making an explicit DPU reboot command unnecessary

· Proposal from Gagan: Suggested moving the platform-dependent condition from the generic helper script to the platform-specific implementation to reduce future maintenance burden

· Next step: Group agreed to discuss further with Ramesh during the upcoming platform meeting and review the PMON call implementation

Top Highlights

· Coordinated multi-repo effort to support maximum DASH configuration scale: sonic-sairedis (#1840), sonic-buildimage (#26679), sonic-gnmi (#643)

· DASH ENI counter infrastructure landing across sonic-sairedis and sonic-swss-common

· Flow API support added to sonic-swss (#4218) with matching SONiC HLD (#2168)

· SmartSwitch HA HLD updated (#2180) and HA test modules 3, 6, 7, 8 merged

· Redis pipeline optimization for deferred DASH result table writes (#4484)

· DPU flow dump added to techsupport (#4458)

· DPU upgrade and smart switch full upgrade test tooling expanded

· HA test plan Module 8 (BGP shutdown/startup, config reload) completed — 7 of 9 modules merged

· ENI counter stale-entry cleanup fix contributed by Lawrence

· DPU image upgrade utility added for testbed consistency

All Created PRs:

Repository	PR	Title	Created
sonic-net/sonic-buildimage	#26679	[SmartSwitch] Support maximum dash configuration size	Apr 9
sonic-net/sonic-mgmt	#24005	Add smart switch full upgrade test all DPUs then reboot NPU	Apr 16
sonic-net/sonic-buildimage	#26764	[smartswitch] Start pmon after databasedpu instance services on SmartSwitch host	Apr 14
sonic-net/sonic-mgmt	#23915	Add utility to upgrade DPU images for smartswitch testbeds	Apr 14
sonic-net/sonic-mgmt	#24136	Dpu uptime and graceful reboot enhancements	Apr 22
sonic-net/sonic-buildimage	#26929	[Cherry-pick] [Nvidia]: relocate udev-manager, add SN4280 mgmt PCI binding	Apr 21
sonic-net/sonic-mgmt	#24015	[SmartSwitch] Update the auto techsupport test for DPU	Apr 17
sonic-net/sonic-host-services	#376	[smartswitch] Use dpu_halt_services_timeout from platform.json, fallback to HALT_TIMEOUT	Apr 16
sonic-net/sonic-mgmt	#24138	[HA][smartswitch] enable running HA tests with any DPU pair	Apr 22
sonic-net/sonic-mgmt	#24046	Update SmartSwitch HA test plan with identified test gaps	Apr 19
sonic-net/sonic-buildimage	#26933	[Smartswitch] Updated module to initialize without connector	Apr 22
sonic-net/sonic-gnmi	#643	[SmartSwitch] Support maximum gnmi message size of 125k messages	Apr 9
sonic-net/sonic-buildimage	#26725	[dhcp_server]: Fix lease not shown after reboot	Apr 12
sonic-net/sonic-sairedis	#1840	[SmartSwitch] [DPU] Support maximum dash configuration size	Apr 9
sonic-net/sonic-mgmt	#24128	[HA] [smartswitch] fix the renaming of dash_ha_set_dpu_config_table	Apr 22
sonic-net/sonic-utilities	#4458	[DPU] Add flow dump collection to techsupport	Apr 15
sonic-net/sonic-mgmt	#23933	chore: get_dut_version add dpu smart switch support	Apr 15
sonic-net/sonic-mgmt	#24006	moved test_reboot_cause to test_reload_dpu.py	Apr 16
sonic-net/sonic-utilities	#4472	Fix Pensando DPU reboot handling in smartswitch operations	Apr 18
sonic-net/sonic-mgmt	#23801	[202511] Cherry-pick DASH Privatelink + FNIC improvements	Apr 9
sonic-net/sonic-mgmt	#23815	Fix minigraph reload related tests for smartswitch	Apr 10
sonic-net/sonic-mgmt	#23920	[DASH] Fixes for FNIC and metering tests	Apr 15
sonic-net/sonic-mgmt	#23765	[Smartswitch] Changed PL SIP values as per requirement	Apr 9
sonic-net/sonic-mgmt	#23811	Override config in restore_test_env of GCU test_cacl.py	Apr 10
sonic-net/sonic-mgmt	#23835	DPUs: Include disk type 'MMC' for dpu ssdhealth check	Apr 10
sonic-net/sonic-gnmi	#655	[202511] Fix too_many_pings during DPU SetPackage and add ARM64 CI build	Apr 21
sonic-net/sonic-mgmt	#23991	Reapply TLS cert config after preboot reboot in NPU upgrade test	Apr 16
sonic-net/sonic-swss-common	#1178	Increase ZMQ Response Size to 32MB to support maximum dash configuration size	Apr 21
sonic-net/sonic-buildimage	#26762	[database]: Skip CONFIG_DB_INITIALIZED writes for DPU database instances	Apr 14
sonic-net/sonic-mgmt	#23804	Add new fields in DASH_HA_GLOBAL_CONFIG	Apr 9
sonic-net/sonic-buildimage	#26765	Add extra logging directory mapping for dash-ha container	Apr 14
sonic-net/sonic-sairedis	#1863	[meta]: Skip SaiObjectCollection tracking for high-scale DASH entry types	Apr 20
sonic-net/sonic-mgmt	#23964	Enhance DASH-HA Private Link Steady State test	Apr 15
sonic-net/sonic-swss	#4468	[dash]: Fix bulk remove post-processing for inbound/outbound routing entries	Apr 10
sonic-net/sonic-mgmt	#23797	[HA][smartswitch] update HA module 8 based on latest fixtures from conftest	Apr 9
sonic-net/sonic-mgmt	#24049	console servers: Skip warm and fast reboots for vpp	Apr 20
sonic-net/sonic-swss	#4484	[orchagent]: Use Redis pipeline for deferred DASH result table writes	Apr 15
sonic-net/sonic-sairedis	#1862	Smart Counter Poll to allow counters to work properly on Broadcom platforms	Apr 20
sonic-net/sonic-mgmt	#23781	[202511] copp: fix missing is_smartswitch_light_mode init in ControlPlaneBaseTest	Apr 9
sonic-net/sonic-mgmt	#24009	[tests/common]: Respect ansible_port in paramiko SSH connections	Apr 17
sonic-net/sonic-mgmt	#23957	[HA][smartswitch] HA test module 3 BFD pinning	Apr 15
sonic-net/sonic-mgmt	#24014	Fix test test_default_cfg_after_load_mg for testbed with golden config	Apr 17
sonic-net/sonic-mgmt	#23829	Revert "[202511] Cherry-pick gNOI framework + smartswitch reboot tests"	Apr 10
sonic-net/sonic-mgmt	#23875	Revert "Revert "[202511] Cherry-pick gNOI framework + smartswitch reboot tests""	Apr 13
sonic-net/sonic-mgmt	#24084	[critical_services] Exclude snmp from tracking list on BMC topology	Apr 21
sonic-net/sonic-buildimage	#26878	Fix kea-dhcp4 startup failure after trixie upgrade	Apr 17
sonic-net/sonic-sairedis	#1848	[syncd]: Fall back to TCP connection when unix socket path is not defined	Apr 14
sonic-net/sonic-swss-common	#1176	[dash] Add COUNTERS_ENI_OID_MAP definition	Apr 16
sonic-net/sonic-sairedis	#1847	[dash] Cleanup ENI counters on ENI deletion	Apr 14
sonic-net/sonic-swss-common	#1177	[dash] Add COUNTERS_ENI_OID_MAP table name to schema.h	Apr 16
sonic-net/sonic-buildimage	#26868	[build][202505] Update apt source list to azure mirror in docker dash-engine	Apr 17
sonic-net/sonic-sairedis	#1844	[meta] Populate object_statuses on bulk validation failure; DASH entries use ITER	Apr 10

All Merged PRs

Repository	PR	Title	Merged
sonic-net/sonic-sairedis	#1840	[SmartSwitch] [DPU] Support maximum dash configuration size	Apr 14
sonic-net/sonic-mgmt	#23933	chore: get_dut_version add dpu smart switch support	Apr 17
sonic-net/sonic-mgmt	#24006	moved test_reboot_cause to test_reload_dpu.py	Apr 22
sonic-net/sonic-mgmt	#23801	[202511] Cherry-pick DASH Privatelink + FNIC improvements	Apr 10
sonic-net/sonic-mgmt	#23920	[DASH] Fixes for FNIC and metering tests	Apr 15
sonic-net/sonic-mgmt	#23747	Add skip conditions for HA DPU and NPU process crash tests	Apr 20
sonic-net/sonic-mgmt	#22982	Feature/ha module6 critical process crash	Apr 20
sonic-net/sonic-mgmt	#23478	[devutil]: Add pmon readiness check and refactor DPU NAT utilities	Apr 15
sonic-net/sonic-mgmt	#23835	DPUs: Include disk type 'MMC' for dpu ssdhealth check	Apr 15
sonic-net/sonic-mgmt	#23653	[202511] Cherry-pick gNOI framework + smartswitch reboot tests	Apr 9
sonic-net/sonic-buildimage	#26333	[Mellanox][SmartSwitch] Add retry mechanism for sysfs read	Apr 16
sonic-net/sonic-mgmt	#23559	Tag the Set default dut index step to always run to cover the separate DPU minigraph	Apr 9
sonic-net/sonic-mgmt	#23165	[SmartSwitch] Fix test issues in dash smartswitch vnet test	Apr 9
sonic-net/sonic-mgmt	#22699	[SmartSwitch] Update the get_mgmt_ip for DPU	Apr 15
sonic-net/sonic-buildimage	#26762	[database]: Skip CONFIG_DB_INITIALIZED writes for DPU database instances	Apr 20
sonic-net/sonic-buildimage	#26251	[SmartSwitch] [Mellanox] Ignore PCI sensors when DPU is power off	Apr 10
sonic-net/sonic-mgmt	#22918	[HA] [smartswitch] Module 7 HA DPU power down and NPU reboot tests	Apr 17
sonic-net/sonic-mgmt	#23804	Add new fields in DASH_HA_GLOBAL_CONFIG	Apr 10
sonic-net/sonic-buildimage	#26765	Add extra logging directory mapping for dash-ha container	Apr 22
sonic-net/SONiC	#2180	Update SmartSwitch HA HLD	Apr 17
sonic-net/SONiC	#2168	[smart switch] Add Flow Dump to HA HLD	Apr 10
sonic-net/sonic-mgmt	#23964	Enhance DASH-HA Private Link Steady State test	Apr 16
sonic-net/sonic-buildimage	#26335	[Smartswitch][Mellanox] Added additional logging to improve pci scan time recording	Apr 16
sonic-net/sonic-mgmt	#23797	[HA][smartswitch] update HA module 8 based on latest fixtures from conftest	Apr 10
sonic-net/sonic-mgmt	#23781	[202511] copp: fix missing is_smartswitch_light_mode init in ControlPlaneBaseTest	Apr 10
sonic-net/sonic-mgmt	#23957	[HA][smartswitch] HA test module 3 BFD pinning	Apr 17
sonic-net/sonic-mgmt	#23605	[ssw] move VDPU, DPU, REMOTE_DPU, VXLAN_TUNNEL, VNET generation from test fixture	Apr 13
sonic-net/sonic-mgmt	#23829	Revert "[202511] Cherry-pick gNOI framework + smartswitch reboot tests"	Apr 11
sonic-net/sonic-mgmt	#23875	Revert "Revert "[202511] Cherry-pick gNOI framework + smartswitch reboot tests""	Apr 14
sonic-net/sonic-swss	#4452	[npu-driven][ssw][ha] instead of waiting for ha state change event, immediately update	Apr 16
sonic-net/sonic-buildimage	#25563	[DPU] Add YANG model support for HA Set Counters	Apr 21
sonic-net/sonic-mgmt	#24084	[critical_services] Exclude snmp from tracking list on BMC topology	Apr 21
sonic-net/sonic-mgmt	#23220	[HA] [smartswitch] implement module 8 of the HA testplan	Apr 9
sonic-net/sonic-sairedis	#1848	[syncd]: Fall back to TCP connection when unix socket path is not defined	Apr 16
sonic-net/sonic-mgmt	#23655	[202511] Cherry-pick conditional marks + HA planned shutdown tests	Apr 10
sonic-net/sonic-swss	#4218	[DPU] [HA] Add support for Flow API	Apr 17
sonic-net/sonic-platform-daemons	#789	Speed up execution of thermalctld unit tests	Apr 22
sonic-net/sonic-host-services	#359	[python tests] Fix determine-reboot-cause_test.py importing module sonic_platform	Apr 15
sonic-net/sonic-sairedis	#1838	[202511] Update SAI to v1.17.5	Apr 10
sonic-net/sonic-buildimage	#26587	sonic-yang-models: Add meaningful descriptions to YANG models	Apr 20
sonic-net/sonic-swss-common	#1177	[dash] Add COUNTERS_ENI_OID_MAP table name to schema.h	Apr 17
sonic-net/sonic-buildimage	#26868	[build][202505] Update apt source list to azure mirror in docker dash-engine	Apr 20
sonic-net/sonic-sairedis	#1836	[syncd]: Clean up ENI counter entries from COUNTERS_DB on ENI deletion	Apr 9
sonic-net/sonic-swss	#4425	[DASH] Read inbound routing priority from ROUTE_RULE_TABLE key	Apr 15
sonic-net/sonic-buildimage	#26331	[Mellanox] Update mft build flow to support kernel-mft-dkms new version naming	Apr 16