Question: Zone aware routing: where does cluster state of the world comes from?

[kubrickfr]

In the documentation implies that routing decisions in this mode are based on knowledge about the number of other envoy nodes and their locality as well as the amount of traffic they receive.

I understand how each envoy node may send traffic information via LRS, but how do nodes get information about other envoy nodes?

EDIT: where the magic happens

[ravenblackx]

@wbpcode might be the person to know more, as the load balancing person.

[kubrickfr]

After reading the code, I think it's just assuming a fair distribution of request among the envoy nodes.

I'm still not clear how it knows about other envoy nodes though. Does the EDS endpoint have to send a CLA with the envoy nodes and cluster_name matching the node's cluster name defined in the bootstrap configuration?