2-403
Catalyst 6500 Series Switch Command Reference—Release7.6
78-15328-01
Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands set port jumbo
set port jumbo
To enable or disable the jumbo frame feature on a per-port basis, use the set port jumbo command.
set port jumbo mod/port {enable | disable}
Syntax Description
Defaults If you enable the jumbo frame feature, the MTU size for packet a cceptance is 9216 b ytes for no ntrunking
ports.
Command Types Switch command.
Command Modes Privileged.
Usage Guidelines This command is not supported by the NAM. The jumbo frame feature is supported on any Ethernet port
and on the sc0 interface. The MSFC2 supports routing of jumbo frames. The Gigabit Switch Router
(GSR) supports jumbo frames.
You can use the jumbo frame feature to transfer large frames or jumbo frames through Catalyst 6500
series switches to optimize server-to-server performance.
The Multilayer Switch Feature Card (MSFC) and the Multilayer Switch Module (MSM) do not support
the routing of jumbo frames; if jumbo frames are sent to t hese r oute rs, r out er perfo rm an ce is
significantly degraded.
Examples This example shows how to enable the jumbo frames feat ur e on mo dul e 3 , por t 2:
Console> (enable) set port jumbo 3/2 enable
Jumbo frames enabled on port 5/3.
Console> (enable)
This example shows how to disable the jumbo frames feature on module 3, port 2:
Console> (enable) set port jumbo 3/2 disable
Jumbo frames disabled on port 3/2.
Console> (enable)
Related Commands set trunk
show port jumbo
mod/port Number of the module and the port on the mod ule.
enable Enables jumbo frames on a specified port.
disable Disables jumbo frames on a specified port.