SONiC Chassis Subgroup

Missed any meeting? Find Chassis working group Meeting Recordings here.

Design docs for SONiC on Chassis:

• Architecture

  • Multi-ASIC support
  • Distributed VoQ Architecture

• Control Plane

  • BGP Routing in Chassis

• Data plane Fabric

  • Distributed forwarding in a VOQ architecture HLD
  • Link aggregation
  • Re-cycle port support for VoQ chassis

• Monitoring, Diagnostic

  • Platform Monitoring for Chassis
  • Fabric port support for Chassis
  • Everflow support
  • Telemetry support for VoQ system - TBD

• Operations and Manageability

  • Serial console management
  • Internal Management Network design

• Failure Handling

  • FSI failure detection and System Objects convergence

• Testing

  • Chassis testing infrastructure - Refer table below

Project Status:

Feature	HLD Review	Owner	Code Review Owner	Code Review Date	Code PR Status
Distributed forwarding in a VOQ architecture HLD HLD PR- Merged	Reviewed	Arista	MSFT, Nokia	9/09/2020	5283 - Merged
Distributed VOQ architecture HLD HLD PR-Merged HLD PR - Merged HLD PR - Merged	Reviewed	Nokia	MSFT, Arista	9/23/2020	All Merged 380 - Merged 657 - Merged 725-Merged 1431 - Merged 5862 - Merged 2659-Merged
Multi-ASIC support HLD PR-Merged	Reviewed	MSFT	MSFT	Reviewed	All merged
Platform Monitoring for Chassis systems HLD PR-MergePending	Reviewed	Nokia	MSFT, Arista	Reviewed	All Merged 388 - Merged 1145 - Merged 124 -Merged 97 - Merged 5523 - Merged Thermal Section 3.3.2 395- Merged 131 - Merged 101- Merged 5624-Merged PSUD Section 3.3.1 104-Merged 136- Merged Midplane Monitoring 1267 - Merged 148 - Merged 127 - Merge 2695-Merged
Routing/BGP for Chassis HLD PR-MergePending	Reviewed	Arista	Nokia, MSFT	Reviewed	5622 - Open 5629 - Open
Fabric Port support for SONiC HLD PR-MergePending	Reviewed	Arista	MSFT, Nokia	10/30/2020	1459 - Open 5569 - Open (New) 6185 - Open (New)
LAG Support for Chassis HLD PR - Open	Reviewed	Nokia	MSFT, Arista	11/30/2020	447 -Open 1603- Open 448-Open 6488-Open 1605- Open
Chassis infrastructure, T2 topologies and TC conversion HLD PR Supporting HLD PR	Reviewed	Nokia/MSFT	Cisco, Arista	10/30/2020	2245 - Merged 2417 - Merged 2638 - Merged 5991 - Open 2511-Merged 2813 - Open
Inband port support for Chassis HLD PR-Merged HLD PR - Open HLD PR - Merged	11/25/2020	Nokia	MSFT, Arista	TBD	1602- Open 6477 - Open 159 - Open 145- Open 1363 - Open 1568-Open
Everflow Support HLD PR - Open	Reviewed	Arista	MSFT, Nokia		1530 - Open
Recycle Port support HLD PR - Open	1/27/2021	Arista	MSFT, Nokia
Mini-graph support	2/2/2021	Arista	MSFT, Nokia		5991 - Open (New) Default Config 1228 - Open (New)
Inband Vlan	2/8/2021	Arista	MSFT, Nokia		1555 - Open(New)
FSI failure detection and System Objects convergence	(Best-effort) 12/15/2020	Nokia	MSFT, Arista

Chassis Testing Effort:

Functional area	Description	PR#	Owner	Reviewed	PR Status
Adapt testcases for SONiC Chassis	Chassis Test Infrastructure	2511	Nokia	Yes	Merged
	Implementation of multi-DUT and multi-ASIC as per PR 2347	2417	Nokia	Yes	Merged
	[multi-dut] - Sanity checks for multi-duts	2478	Nokia	Yes	Merged
	Config_facts enhancements for multi-asic and support in SonicAsic	2435	Nokia	Yes	Merged
	Test bgp facts - skip for supervisor card in a SONiC chassis	2509	Nokia	Yes	Merged
	Adding module_utils to allow for common utilites that can be shared among ansible	2623	Nokia	Yes	Merged
	Support for not all DUT ports connected to a fanout switch	2517	Nokia	Yes	Merged
	Creategraph - Support comments and empty lines in the lab_devices and lab links csv files	2547	Nokia	Yes	Merged
	Introduce basic T2 topology	2638	Nokia	Yes	Merged
	Additional fixtures to filter DUTs as per specific test case needs	2693	Nokia	Yes	Merged
	Support for gen-mg to work with multi-dut where VMs connect to only a single host and supervisor card	2700	Nokia	Yes	Review in progress
	Optimizing dut selection fixtures in pytest_generate_tests	2811	Nokia	Yes	Review in progress
	Making log analyzer fixture work with multiple DUTs in multi-dut testbed	2809	Nokia	No
VOQ test plan	VOQ test plan	2659	Nokia	Yes	Review in progress
	System Initialization & Neighbor Lifecycle functional	2826	Nokia	No	Need reviewers
	Neighbor & Router Interface lifecycle events		Nokia
	Host IP Forwarding		Nokia
PMON Test plan	PMON Test plan	2695	Nokia	Yes	Merged
	Framework for selecting pluggable components for sonic modular chassis, and CLI Tests	2794	Nokia	Yes	Review in progress
	PMON API test cases		Nokia
	Thermal CLI test case		Nokia		Need json file for sonic buildimage
LAG Test plan	LAG on Chassis Test case		Nokia
	4 Test cases for LAG		Nokia
BGP on Chassis Test plan			Arista
Fabric Test plan			Arista
Everflow support Test plan			Arista
Generate minigraph support			Arista
T1 test case conversion	test_interfaces.py, test_nbr_health.py, iface_namingmode and new DUT selection mechanism, ARP, Route, Syslog, Monit, read_mac, TechSupport, PortStat	2813	Nokia	Yes	Review in progress
	LLDP		Nokia
	FIB	2860	Nokia
	IpFwd	2891	Nokia
	Drop Packets	2868	MSFT
	System Health		MSFT
	SNMP, TACACS		Nokia
	Auto_restart, CRM		Nokia
	PortChannel		Nokia
	Platform tests - Legacy CLI and API		Nokia