Adding Mellanox-SN4700-O32 SKU

[dgsudharsan]

Why I did it

To add new SKU Mellanox-SN4700-O32 with following requirements:

Port configuration	Value
Breakout mode for each port	Defined in port mapping
Speed of the port	Defined in Port mapping
Auto-negotiation enable/disable	No setting required
FEC mode	No setting required
Type of transceiver used	Not needed

Buffer configuration	Value
Shared headroom	Enabled
Shared headroom pool factor	2
Dynamic Buffer	Disable
In static buffer scenario how many uplinks and downlinks?	16x400G Downlinks and 16x400G uplinks
2km cable support required?	Yes

Switch configuration	Value
Warmboot enabled?	yes
Should warmboot be added to SAI profile when enabled?	yes
Is VxLAN source port range set?	No
Should Vxlan source port range be added to SAI profile when set.	No
Is Static Policy Based Hashing enabled?	No
Store and forward enable	yes

Port Mapping

Ports	Mode
1-16	1x400G
17-32	1x400G

Number of Uplinks / Downlinks:
T1 topology: 16x400G Downlinks 16x400G uplinks.
Length of downlink: 40m
Length of uplink: 2000m

Work item tracking

• Microsoft ADO (number only):

How I did it

Defined the SKU as per requirements

How to verify it

Load the SKU and verify if all links come up and traffic passes.

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205
• 202211

Tested branch (Please provide the tested image version)

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)