Getting timeout from Rabbitmq cluster on peak hours

Question

Want to troubleshoot between .net application and haproxy(backend rabbitmq cluster)

• why getting timeout from rabbitmq while getting high load on peak hours
• can we trace using tcpdump
• can we trace or identify the sysctl parameters
• what would be set sysctl parameters in haproxy level and rabbitmq cluster

OS: ubuntu 22.04 for both rabbitmq and haproxy