Configuring Support for Jumbo Frames
The switch provides more efficient throughput for large sequential data transfers by
supporting jumbo frames up to 9216 bytes. Compared to standard Ethernet frames
that run only up to 1.5 KB, using jumbo frames significantly reduces the per-pac ket
overhead required to process protocol encapsulation fields.
Command Usage
To use jumbo frames, both the source and destination end nodes (such as a
computer or server) must support this feature. A lso, w hen the connec tion is
operating at full duplex, all switches in the network between th e two en d no des m ust
be able to accept the extended frame size. And for half-duplex connec tions, all
devices in the collision domain would need to support jumbo frames.
Command Attributes
Jumbo Packet Status
– Configures support for jumbo frames. (Default: Disabled)
Web
– Click System, Jumbo Frames. Enable or disable support for jumbo fr ames,
and click Apply.
Figure 4-10 Configuring Support for Jumbo Frames
CLI
– This example enables jumbo frames globally for the switch.
4

Configuring Support for Jumbo Frames

Console(config)#jumbo frame
Console(config)#
2
3
-
9
Managing Firmware
You can upload/download firmware to or from a TFTP server, or copy files to and
from switch units in a stack. By saving runtime code to a file on a TFTP server, t hat
file can later be downloaded to the swi tch to res tor e ope ra tion. You can a ls o se t the
switch to use new firmware without overwriting the previous version. You must
specify the method of file transfer, along with the file type an d f ile n ame s as r equi red.
Command Attributes
• File Transfer Method – The firmware copy operat ion inclu des these opt ions:
- file to file – Copies a file within the switch directory, assigning it a new name.
- file to tftp – Copies a file from the switch to a TFTP server.
- tftp to file – Copies a file from a TFTP server to the switch .
- file to unit – Copies a file from this switch to another unit in the stack .
- unit to file – Copies a file from another unit in the stack to this switch.

4-21