Connecting a terminal server to the control plane is optional. The terminal server typically has power in, one Ethernet port, and 32 serial ports out, as shown in the following figure.
Serial connections allow out-of-band access to certain devices. Devices with serial connections have their ports labeled s0, s1, and so forth. Terminal servers have their ports labeled with a number, for example, 1, 2, 3, and so forth.
Only the control plane server, image server, and the chassis SSC switch controller and system controller are automatically discovered during the installation process. Other devices, such as terminal servers, are not added to the database.
The connection guidelines for a terminal server are as follows:
Connect the terminal server to a power controller or constant power.
Connect the terminal server serial port to the control plane switch.
Connect the terminal server Fast Ethernet port to a control plane switch port.