Dell PowerConnect 5224 System User's Manual page 58

In the preceding figure, the management VLAN is different on each switch, with the Layer 3 switch interconnecting the VLANs. The ports that interconnect the
switches are configured as tagged ports. The ports on the Layer 3 switch that connect to the other switches must be configured as members of the
management VLAN for each switch.
For management VLAN access, ensure that:
You have configured the switch's management VLAN with a valid IP address, subnet mask, and default gateway.
l
The management station has a valid IP address, subnet mask and default gateway.
l
The management station is connected to a switch port that is a member of the management VLAN, and the PVID is also configured as the management
l
VLAN.
Ports that interconnect switches, including the Layer 3 switch in the network, are tagged and are members of the management VLAN.
l
Downloading Firmware Through the Console Port
The switch contains two firmware components that can be upgraded: the diagnostics (or Boot-ROM) code and the runtime operation code. You can upgrade
the runtime code through the switch's RS-232 serial console port, through a network connection to a Trivial File Transfer Protocol (TFTP) server, or with SNMP
management software. You can upgrade the diagnostics code only through the switch's RS-232 serial console port.
NOTICE: Use the switch's web interface to download the runtime code through TFTP (see
through TFTP is normally much faster than downloading files through the switch's serial port.
You can upgrade switch firmware by connecting a computer directly to the serial console port on the switch's front panel and using VT100 terminal emulation
software that supports the XModem protocol. (See
To download firmware:
1. Connect a computer 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, and no parity. Set flow control to none.
3. Power cycle the switch.
4. To enter firmware-download mode, press <Ctrl><f> immediately after the diagnostic test results appear in the switch initialization screen.
Screen text similar to that shown in the following example displays:
File Name S/Up Type Size Create Time
------------------- ---- ---- ------ -----------
$logfile_1 0 3 64 00:00:07
$logfile_2 0 3 64 00:00:12
diag_0070 0 1 96500 00:06:37
diag_0074 1 1 97780 00:00:05
run_03024 0 2 1121956 00:21:41
run_10020 1 2 1124416 00:00:10
------------------- ---- ---- ------ -----------
[X]modem Download [D]elete File [S]et Startup File
[R]eturn to Factory Default [C]hange Baudrate [Q]uit
Select>
5. Press <c> to change the baud rate of the switch's serial connection.
"Connecting the Console Port.")
"Firmware Upgrade"). Downloading large runtime code files