如何使用TCPClient获取思科的端口数，状态端口？

Question

我telnet到我的思科设备，一切正常，使用TCPClient思科响应字节数组我可以得到和编码到字符串。

发送和接收工作正常，我收到思科响应我的RichtextBox的所有内容..

问题：我不知道如何显示端口状态，端口数量并将它们加载到TextBox，Combobox。

无论如何获得端口数并获取其状态然后显示到WinForm中的Control（例如在Listview中）。

当我运行'show ip int bri'

时，我的Richtextbox已经返回

FastEthernet0/1            unassigned      YES unset  up                    up      
FastEthernet0/2            unassigned      YES unset  down                  down    
FastEthernet0/3            unassigned      YES unset  down                  down    
FastEthernet0/4            unassigned      YES unset  down                  down    
FastEthernet0/5            unassigned      YES unset  down                  down    
FastEthernet0/6            unassigned      YES unset  down                  down    
FastEthernet0/7            unassigned      YES unset  down                  down    
FastEthernet0/8            unassigned      YES unset  down                  down    
FastEthernet0/9            unassigned      YES unset  down                  down    
 --More--         FastEthernet0/10           unassigned      YES unset  down                  down    
FastEthernet0/11           unassigned      YES unset  down                  down    
FastEthernet0/12           unassigned      YES unset  down                  down    

这是按钮显示端口

private void btnShowPort_Click(object sender, EventArgs e)
    {
        try
        {
            serverStream = clientSocket.GetStream();
            if (serverStream.CanWrite)
            {
                txtOutput.Enabled = true;
                byte[] outStream2 = System.Text.Encoding.ASCII.GetBytes("sh ip int br" + "\n"+" ");
                serverStream.Write(outStream2, 0, outStream2.Length);
                serverStream.Flush();
            }
            else
            {
                MessageBox.Show("Server is not connected!");
                clientSocket.Close();
                serverStream.Close();
                return;
            }

            if (serverStream.CanRead)
            {

                AutoCloseMsgBox.Show("Show Port...", "Thong Bao", 1200);

                    byte[] inStream = new byte[clientSocket.ReceiveBufferSize];
                    serverStream.Read(inStream,0,(int)clientSocket.ReceiveBufferSize);
                    string returndata = System.Text.Encoding.ASCII.GetString(inStream);
                    Msg(returndata);  
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message.ToString());
            return;
        }
    }

我的Richtextbox显示思科发送信息

  public void Msg(string msg)
    { 
        this.txtOutput.Text = txtOutput.Text + msg;
        this.txtOutput.Text = txtOutput.Text.Replace("????????","Welcome Telnet Management");   
    }