DASH Workgroup Meeting Minutes 5/18/2022
Kristina Moore
Hello DASH Community – thanks for your time on Wednesday. And thank you to NVIdia for a great SONiC on DPU demo!
The notes from Wednesday are below, along with the recording links. See you on 5/25/2022
Meeting Title: SONiC-DASH-Workgroup Community Meeting #22
May 18, 2022
Attendees (32):
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Alberto Villarreal - Keysight |
Fingerhut, John Andy - Intel |
Kristina Moore -MSFT |
Matty Kadosh - Nvidia |
Pourya Shahmaleki - MSFT |
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Baldi Mario - Pensando |
Gerald Degrace - MSFT |
Liat Grozovik - Nvidia |
Mel Tsai - Cisco |
Prince Sunny - MSFT |
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Bud Grise - XSightLabs |
Guohan Lu - MSFT |
Lisa Nguyen - Broadcom |
Mircea Dan Gheorghe - Keysight |
Roop Mukherjee - Nvidia |
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Chris Sommers - Keysight |
James Grantham - MSFT |
Mahalinga, Venkatesan - Dell |
Mohammad Hanif - Broadcom |
Shah, Shitanshu - Intel |
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Cummins, Paul - Intel |
james_lo 駱正雄 - Accton |
Manodipto Ghose - Keysight |
Oleksandr Ivantsiv - Nvidia |
Sudarshan, Reshma - Intel |
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Diana Galan - Keysight |
John C Carney - XSightLabs |
Marian Pritsak - Nvidia |
Oleksandr Kholodnyi - PLVision |
Xin Liu - MSFT |
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Ezra Yosef - XSightLabs |
Keshav Gupta - Fungible |
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Discussion
Nvidia presentation and Demo - SONiC on DPU - Oleksandr Ivantsiv
Each vendor has its own SAI implementation and SDK
NASA - Nvidia SDN Application
Python plugins in PMON container
Implementation details; reduced amount of components
Features:
Memory consumption: No docker daemon running. Includes kernel drivers for Nvidia. Base
Debian plus additional kernel drivers.
Debian memory usage example:
SONiC base OS w/docker, no containers running:
SONiC OS memory w/all docker containers running:
Docker containers memory usage depends upon how many applications are running inside
Commands shown:
Show platform summary
Docker ps
Show feature status
Docker exec -it syncd bash -c "ps -ax'
Show interfaces status
Config interface shutdown Ethernet4 (example)
Config interface mtu Ethernet4 1518
Config interface
Show interfaces transceiver status
Show interfaces transceiver eeprom Ethernet4
Upcoming
When SWSS is completed, we will know more about memory consumption
Changes for SONiC running on ARM and on top of Bluefield, with a fully aligned interface configuration
There are additional phases in progress
Next is to show traffic such as BGP peering
Later based on DASH HLD, we will see how the Overlay will be integrated into SONiC
Another API coming, to configure the DPU
Plan to upstream?
@john carney - will there be a new target build image for DASH? @liat - Eventually the plan is to have it upstreamed.
Learnings?
@hanif - what were the learnings re: SONiC and the DPU? @liat - learning what exactly is needed from the large list of features and SAI APIs, and the priority for them, and how to integrate onto a working supplier
@lisanguyen - 1st time seeing SONiC on ARM, is this a smooth transition going from x86 to ARM64? @liat - cross compilation is slower, bring up of equipment is better to bring up a server with a native compilation
@xin - once SAI DASH is standardized and matured, we may take to the broader SAI community and place into the SAI releases
@venkat mahalinga - need to come up with differences re: syncd container, enabling DPU for SONiC there will be more considerations. Please join behavioral model meeting.
@hanif - original vision for SONiC on DPU regardless of scenario. When it comes to SmartSwitch, does it make sense to run multiple instances of SONiC? Yes, see Gerald's comments at the beginning of the meeting. Update HLDs as to where the containers run. We can move containers to DPUs.
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Upcoming Action Items for May 25th, 2022 |
Status/Date |
Notes |
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1 |
MSFT/Nvidia to present/discuss progress |
May 18th - Complete |
See Sticky Notes below for recording links |
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2 |
Draft .json uploaded to GitHub PR93 |
Complete |
Community please review |
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3 |
SONiC DASH Northbound YANG definitions PR106 |
Posted |
Community please review |
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4 |
Refreshed DASH HLD posted |
Posted |
Community please review |
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5 |
Behavioral Model volunteers needed |
Many items have volunteers, just a few left |
Skills needed: ability to dig into the P4 compiler, software switch, and software simulation tool |
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6 |
Michal Zygmunt to present NB interface |
TBD |
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7 |
Community please Review PRs and comment |
PRs filed for review/comment |
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8 |
Issues list for tracking & resolution |
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https://github.com/Azure/DASH/issues
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Sticky for Links/Data: |
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Link to Recording |
Teams/Sharepoint: |
5/18/2022 Community Call; please request access via the link if you are not able to view/listen
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Azure DASH GitHub Repo: |
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https://github.com/Azure/DASH/blob/main/test/docs/dash-test-workflow-saithrift.md |
Ideal test workflow is here, converted to .md |
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SAI Thrift |
Client server needed for testing |
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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.) |
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PINS |
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PNA consortium spec |
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. |
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IPDK |
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. |
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bmv2 |
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 |
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DPDK |
DPDK is the Data Plane Development Kit which consists of libraries to accelerate packet processing workloads running on a wide variety of CPU architectures. |
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Thank you again for your participation…
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Kristina Moore Principal PM, Azure Core – DASH Phone 425-722-7720 Cell 425-876-2040 Email kri...@microsoft.com One Microsoft Way Redmond, WA 98052
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