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Port Traffic Controls
Jumbo Frames
Enabling or Disabling Jumbo Traffic on a VLAN
Configuring a Maximum Frame Size
You can globally set a maximum frame size for Jumbo frames that will support
values from 1518 bytes to 9216 bytes for untagged frames.
Syntax:
vlan <
vid
> jumbo
[ no ] vlan
< vid >
jumbo
Configures the specified VLAN to allow jumbo frames on all
ports on the switch that belong to that VLAN. If the VLAN is
not already configured on the switch,
vlan
< vid >
jumbo
also
creates the VLAN. Note that a port belonging to one jumbo
VLAN can receive jumbo frames through any other VLAN
statically configured on the switch, regardless of whether the
other VLAN is enabled for jumbo frames. The
[no]
form of the
command disables inbound jumbo traffic on all ports in the
specified VLAN that do not also belong to another VLAN that
is enabled for jumbo traffic. In a VLAN context, the command
forms are
jumbo
and
no jumbo
. (Default: Jumbos disabled on
the specified VLAN.)
Syntax:
jumbo max-frame-size <size>
Sets the maximum frame size for Jumbo frames. The range
is from 1518 bytes to 9216 bytes.
Note:
The jumbo
max-frame-size
is set on a
GLOBAL
level.
Default
: 9216 bytes
3500-5400-6200-8200-MCG-Jan08-K_13_01.book Page 32 Monday, January 28, 2008 10:04 AM