proxyLog.Debugf("accepted delta xds connection from envoy, forwarding to upstream")

	con := &ProxyConnection{
		conID:             connectionNumber.Inc(),
		upstreamError:     make(chan error), // can be produced by recv and send
		downstreamError:   make(chan error), // can be produced by recv and send
		deltaRequestsChan: channels.NewUnbounded[*discovery.DeltaDiscoveryRequest](),

		close(p.connected.stopChan)
	}
	p.connected = c
}

// ProxyConnection represents connection to downstream proxy.
type ProxyConnection struct {
	conID              uint32
	upstreamError      chan error
	downstreamError    chan error
	requestsChan       *channels.Unbounded[*discovery.DiscoveryRequest]
	responsesChan      chan *discovery.DiscoveryResponse