Upgrading Firmware Via The Serial Port - SMC Networks SMC7724M Management Manual

T
ROUBLESHOOTING

Upgrading Firmware via the Serial Port

The switch contains three firmware components that can be upgraded; the
diagnostics (or Boot-ROM) code, the runtime operation code, and the
loader code. The runtime code can be upgraded via the switch's RS-232
serial console port, via a network connection to a TFTP server, or using
SNMP management software. The diagnostics and the loader code can be
upgraded only via the switch's RS-232 serial console port.
Note: You can use the switch's Web Interface to download runtime code
via TFTP (see "Downloading System Software from a Server" on
page 2-17). Downloading large runtime code files via TFTP is
normally much faster than downloading via the switch's serial port.
You can upgrade switch firmware by connecting a PC directly to the serial
Console port on the switch's front panel and using VT100 terminal
emulation software that supports the XModem protocol (see "Required
Connections" on page 1-3).
1. Connect a PC to the switch's Console port using a null-modem or
crossover RS-232 cable with a female DB-9 connector.
2. Configure the terminal emulation software's communication
parameters to 9600 baud, 8 data bits, 1 stop bit, no parity, and set flow
control to none.
3. Power cycle the switch.
4. When the switch initialization screen appears, enter
firmware-download mode by pressing <Ctrl><u> immediately after
the diagnostic test results. Screen text similar to that shown on the
following page displays:
A-2