Configurable Ping Interval

[pglombardo]

🚀 Feature Request

On small devices that go into power save mode there is a need to keep the TCP connection alive to avoid TLS renegotiation which can be expensive in terms of power and network transmission. There is also the issue of mid-network devices (firewall, switch, relay) that may terminate connections under different circumstances because of a lack of connection activity.

We want to make this client as configurable as possible. As such the Ping interval should be configurable. Documentation should also clearly explain the relationship between TCP, TLS, Ping and Session Expiry.

📎 Additional context