Guide: Collation Distribution Subsystem

[rphmeier]

This subsystem is responsible for ensuring that collators can connect to validators and that collators can distribute their collations to validators.

The Candidate Selection subsystem is the other side of this, from the validators' perspective.

It seems to make sense to establish a Collator Network Subsystem that actually describes the networking code (collations over the wire, pre-PoVs, validators circulating whitelists, etc.) and then have Candidate Selection and Collation Distribution leverage the Collator Network Subsystem.

[rphmeier]

cc @mxinden @infinity0

#1348 related, describes the networking in more abstract detail

[rphmeier]

We probably want some other subsystem that is a wrapper around peer-set / authority discovery / etc. which allows us to initiate connections to specific validators. That should be a reusable component