TUN-6007: Implement new edge discovery algorithm

connection/errors.go

@@ -18,6 +18,15 @@ func (e DupConnRegisterTunnelError) Error() string {
 	return "already connected to this server, trying another address"
 }
 
+// Dial to edge server with quic failed
+type EdgeQuicDialError struct {
+	Cause error
+}
+
+func (e *EdgeQuicDialError) Error() string {
+	return "failed to dial to edge with quic: " + e.Cause.Error()
+}
+
 // RegisterTunnel error from server
 type ServerRegisterTunnelError struct {
 	Cause     error

connection/quic.go

@@ -55,7 +55,7 @@ func NewQUICConnection(
 ) (*QUICConnection, error) {
 	session, err := quic.DialAddr(edgeAddr.String(), tlsConfig, quicConfig)
 	if err != nil {
-		return nil, fmt.Errorf("failed to dial to edge: %w", err)
+		return nil, &EdgeQuicDialError{Cause: err}
 	}
 
 	datagramMuxer, err := quicpogs.NewDatagramMuxer(session, logger)