Firmware Upgrade - Dell PowerConnect 5212 System User's Manual

The switch provides more efficient large sequential data transfers by supporting jumbo frames up to 9000 bytes. Compared to standard Ethernet frames that
run only up to 1500 bytes, using jumbo frames significantly reduces the per-packet overhead required to process protocol encapsulation fields.
To use jumbo frames, both the source and destination end nodes (such as a computer or server) must support jumbo frames. In addition, when the
connection is operating at full duplex, all switches in the network between the two end nodes must be able to accept the extended frame size. For half-duplex
connections, all devices in the collision domain must support jumbo frames.
To enable jumbo frame support on the switch, set the Jumbo Frame Support Status to Enabled.
NOTICE: Enabling jumbo frames on the switch limits the maximum threshold for broadcast storm control to 64 packets per second.
To save any changes you make in this page, click Apply Changes. If you don't want to save the changes, click Refresh.
CLI Commands
The following table summarizes the equivalent CLI command for items in the Switch/Jumbo Frame page.
Command Usage
jumbo Use this
frame command to
enable jumbo
frames to be
forwarded
through the
switch.
Use the no form
to disable jumbo
frames.
Example
Console(config)#jumbo frame
Console(config)#

Firmware Upgrade

From the Firmware page, you can configure the system to download a new version of the management software. The switch can contain two software code
files, one of which is set as the Start-Up file. This allows you to try a new version of the software without overwriting the previous version.