Date: Mon, 13 Mar 2006 14:02:40 -0800 From: Sean Murphy <smurphy@calarts.edu> To: Charles Swiger <cswiger@mac.com> Cc: freebsd-questions@freebsd.org Subject: Re: NIC and Jumbo Frames Message-ID: <4415EC00.6010106@calarts.edu> In-Reply-To: <4B103F6D-B922-4E68-97A7-07E608ABF361@mac.com> References: <4415CE9A.2060700@calarts.edu> <4B103F6D-B922-4E68-97A7-07E608ABF361@mac.com>
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Charles Swiger wrote: > 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 > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > What do I need to add to the rc.conf config line so that it sets up the mtu for jumbo 16128 bytes size and sets the speed from auto to 1000? I have this so far... ifconfig_em0="inet x.x.x.x netmask x.x.x.x 1000baseTX"
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