NIC and Jumbo Frames
Charles Swiger
cswiger at mac.com
Mon Mar 13 21:05:10 UTC 2006
On Mar 13, 2006, at 2:57 PM, Sean Murphy wrote:
> How do I set Jumbo Frames on a Gigabit NIC in FreeBSD?
ifconfig _device_ mtu 8192
...where you would use em0, bge0, or whatever the actual interface
device is.
See the manpages for the various devices, for example "man em":
Support for Jumbo Frames is provided via the interface MTU
setting.
Selecting an MTU larger than 1500 bytes with the ifconfig(8)
utility con-
figures the adapter to receive and transmit Jumbo Frames. The
maximum
MTU size for Jumbo Frames is 16114.
...which usually will discuss the MTU sizes the specific devices can
handle.
--
-Chuck
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