Chapter 4: Web Interface 33
The Port Redirection Connections section includes the information described in Table 4.5 about the
servers that are connected to each of the ESP-4 MI serial ports. This display is meaningful only
when a serial port is being accessed using the serial redirection connection method.
To display connected server information:
Select Connection Status from the Main Menu.
Rebooting the Hub
The Reboot operation reboots the ESP-4 MI serial hub. A reboot is usually required for the
following operations to take effect.
• Changing network address values
• Changing any configurable features
• Updating Flash
• Downloading a configuration file
To reboot:
1. From the Main Menu, select Reboot.
2. Click the Reboot button.
After the reboot completes, the browser will try to reconnect to the hub. If this fails, or if the web
interface does not return within 30 seconds, direct your browser to the ESP-4 MI serial hub
IP address.
Table 4.5: Serial Port Redirection Connections Status Display
Item Description
Destination IP Address Server’s IP address.
UDP State
Current UDP connection state.
Initiating Server is establishing a connection.
Active Server and hub are connected.
Timeout Connection is being dropped due to lost communication with
the server.
Terminated Connection has been dropped.
TCP State
Current TCP connection state.
Initiating Server is establishing a connection.
Connected Server and hub are connected.
Terminated Connection has been dropped.
Connect Time Number of days, hours, minutes and seconds the server has been connected.
Timeout Period
UDP time-out value; that is, the amount of time before a connection is dropped if no
heartbeat messages are received.
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