Support for Conditional UDP Payload Hashing

[aeshap]

Enhancement summary

We are looking to replicate configurations for AI deployment. This feature enables hashing of traffic load on the members of the ECMP groups based on alternative set of bytes to be used in the calculation of the LAG and ECMP hash if an 16 bit field of the payload matches a provided pattern.

https://www.arista.com/en/support/toi/eos-4-33-1f/21077-support-for-conditional-udp-payload-hashing

load-balance policies
load-balance sand profile default
fields udp dst-port 4791 payload bytes 5-7
!

Which component of AVD is impacted

eos_cli_config_gen

Use case example

Required for AI fabrics with sand family platforms.

Describe the solution you would like

Provide load-balance policy support with cli_config_gen

Describe alternatives you have considered

custom_structured_configuration_eos_cli: |
load-balance policies
load-balance sand profile default
fields udp dst-port 4791 payload bytes 5-7

Additional context

No response

Contributing Guide

• I agree to follow this project's Code of Conduct