Artesyn Embedded Technology ATCA-7540, Installation And Use Manual, Page: 92 / 324

Functional Description
92 ATCA-7540 Installation and Use (6806871A01A )
4.11 Serial Redirection
The CPU serial redirection reroutes the console input and output; that is the text output to the
text screen and input from the standard keyboard. The console is used by the BIOS setup
menus, BIOS initialization and boot routines, OS boot loaders, and the loaded operating
systems.
The serial console of the payload CPU is available via Serial over Lan (SOL). In addition to the SOL
capability, the serial console is also available on the blade faceplate using an RJ-45 connector
with Cisco pin-out.
If an SOL session is established, only the output is available on the faceplate. Input is not
possible during this time via the faceplate. Alternatively to the CPU serial console, the IPMC
serial console is also available on the faceplate serial connector. It can be selected via specific
IPMI OEM command.
4.12 Serial over LAN
Serial over LAN (SOL) enables suitably designed blades and servers to transparently redirect a
serial character stream of a baseboard UART to/from a remote client via LAN over RMCP+
sessions. This enables users at remote consoles to access the serial port of a blade/server and
interact with a text-based BIOS console, operating system, command line interfaces, and serial
text-based applications.
The IPMC provides a dedicated sideband connection to the Base Interface Ethernet controller.
This connectivity is not shared with IPMB-0 or any other I²C/SMBus/IPMB connections that the
IPMC may use on the blade for hardware management. Data from the payload serial
redirection is routed through the sideband connection to the Base interface and vice versa. The
Ethernet controller filters packets based on either MAC address, RMCP port number, or IP
address and forwards them to the serial redirection over the sideband interface.
Client software like openIPMI is required to enable SOL and to communicate with the SOL
based serial console.