Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 121)

Brocade 6910 Ethernet Access Switch Configuration Guide 65
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Frame Size
Frame Size
This section describes commands used to configure the Ethernet frame size on the switch.
jumbo frame
This command enables support for layer 2 jumbo frames for Gigabit Ethernet ports. Use the no
form to disable it.
Syntax
[no] jumbo frame
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
• This switch provides more efficient throughput for large sequential data transfers by
supporting jumbo frames on Gigabit Ethernet ports or trunks up to 10240 bytes. Compared to
standard Ethernet frames that run only up to 1.5 KB, 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 this feature. Also, 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. And for half-duplex connections, all devices in the collision domain would need to
support jumbo frames.
• The current setting for jumbo frames can be displayed with the show system command.
Example
Console(config)#jumbo frame
Console(config)#
File Management
Managing Firmware
Firmware can be uploaded and downloaded to or from an FTP/SFTP/TFTP server. By saving
runtime code to a file on an FTP/SFTP/TFTP server, that file can later be downloaded to the switch
to restore operation. The switch can also be set to use new firmware without overwriting the
previous version.
TABLE 14 Frame Size Commands
Command Function Mode
jumbo frame Enables support for jumbo frames GC