Date: Mon, 23 Jul 2012 13:58:29 -0400 From: Bob Healey <healer@rpi.edu> To: freebsd-stable@freebsd.org Subject: Re: pxeboot with jumbo frame network Message-ID: <500D90C5.2020208@rpi.edu> In-Reply-To: <F3A14C6D-C1AC-476B-813C-114E9B3EAEE9@inoc.net> References: <F3A14C6D-C1AC-476B-813C-114E9B3EAEE9@inoc.net>
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I know I have this working, however I don't remember what I did. I know I can pxeboot and install RHEL on a 9K frame network from a FreeBSD tftp server/NAT gateway. I do know the first thing in my RHEL install script is to set the MTU to 9K. If I have a chance later today, I'll dig into one of my install servers and try to figure out what options I used with DHCP to get it working. Sorry I can't be of more help than to say its possible. Bob Healey Systems Administrator Biocomputation and Bioinformatics Constellation and Molecularium healer@rpi.edu (518) 276-4407 On 7/23/2012 1:31 PM, Robert Blayzor wrote: > Is it possible to PXEboot a diskless client with an MTU higher than 1500 (Ie: 9k) ? > > The network we currently boot several diskless machines from has a lot of NFS traffic and we'd like to enable them all for larger MTU's however the one thing stopping us is the issue with initial boot seemingly only supporting an MTU of 1500. > > I know we can set the MTU later (post boot) on the diskless machines, but it doesn't seem we can run a higher MTU on the TFTP server as we'd have TFTP UDP traffic with mis-matched frame sizes at that point. >
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