UnityEngine.Networking.NetworkTransport.StartBroadcastDiscovery C# (CSharp) Method

        public static bool StartBroadcastDiscovery(int hostId, int broadcastPort, int key, int version, int subversion, byte[] buffer, int size, int timeout, out byte error)
        {
            if (buffer != null)
            {
                if (buffer.Length < size)
                {
                    object[] objArray1 = new object[] { "Size: ", size, " > buffer.Length ", buffer.Length };
                    throw new ArgumentOutOfRangeException(string.Concat(objArray1));
                }
                if (size == 0)
                {
                    throw new ArgumentOutOfRangeException("Size is zero while buffer exists, please pass null and 0 as buffer and size parameters");
                }
            }
            if (buffer == null)
            {
                return StartBroadcastDiscoveryWithoutData(hostId, broadcastPort, key, version, subversion, timeout, out error);
            }
            return StartBroadcastDiscoveryWithData(hostId, broadcastPort, key, version, subversion, buffer, size, timeout, out error);
        }

        public bool StartAsServer()
        {
            bool result;

            if (this.m_HostId != -1 || this.m_Running)
            {
                if (LogFilter.logWarn)
                {
                    Debug.LogWarning("NetworkDiscovery StartAsServer already started");
                }
                result = false;
            }
            else
            {
                this.m_HostId = NetworkTransport.AddHost(this.m_DefaultTopology, 0);
                byte b;
                if (this.m_HostId == -1)
                {
                    if (LogFilter.logError)
                    {
                        Debug.LogError("NetworkDiscovery StartAsServer - addHost failed");
                    }
                    result = false;
                }
                else if (!NetworkTransport.StartBroadcastDiscovery(this.m_HostId, this.m_BroadcastPort, this.m_BroadcastKey, this.m_BroadcastVersion, this.m_BroadcastSubVersion, this.m_MsgOutBuffer, this.m_MsgOutBuffer.Length, this.m_BroadcastInterval, out b))
                {
                    if (LogFilter.logError)
                    {
                        Debug.LogError("NetworkDiscovery StartBroadcast failed err: " + b);
                    }
                    result = false;
                }
                else
                {
                    this.m_Running  = true;
                    this.m_IsServer = true;
                    if (LogFilter.logDebug)
                    {
                        Debug.Log("StartAsServer Discovery broadcasting");
                    }
                    Object.DontDestroyOnLoad(base.gameObject);
                    result = true;
                }
            }
            return(result);
        }