discoverNodes() {
		return this.publish(new Packet(P.PACKET_DISCOVER)).catch(
			/* istanbul ignore next */ err => {
				this.logger.error("Unable to send DISCOVER packet.", err);

				this.broker.broadcastLocal("$transit.error", {
					error: err,
					module: "transit",
					type: C.FAILED_NODES_DISCOVERY
				});
			}
		);
	}
Discover other nodes. It will be called after success connect.

@memberof Transit