Add granular ping_interval configuration properties

[jarretlavallee]

Proposed change

Add the ability to configure the ping_interval for each connection type separately.

Use case

Each connection type is likely to have a different network pattern and connection, so the ping_interval could be configured to different values. A route could have a lower ping_interval client or leafnode. This is the case in 2.10, where the ping interval is set to 30s for routes and everything else uses the ping_interval.

Adding a different way to configure the ping interval for each connection type would help in scenarios where the network is blackholed. Lower values will allow for faster detection.

Contribution

No response

[wallyqs]

Added for routes here: #5029

[derekcollison]

Do we need for GWs or do we already have that?

[jarretlavallee]

We have the global one and routes in 2.10.10+. It would be nice to have a specific setting for each of the following.

• Gateways
• Leafnodes
• Clients