Date: Sun, 21 Feb 1999 14:59:30 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: David Greenman <dg@root.com> Cc: Luigi Rizzo <luigi@labinfo.iet.unipi.it>, wpaul@skynet.ctr.columbia.edu, hackers@FreeBSD.ORG Subject: Re: How to handle jumbo etherney frames Message-ID: <Pine.BSF.4.05.9902211457120.282-100000@s204m82.isp.whistle.com> In-Reply-To: <199902211235.EAA12927@implode.root.com>
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no, we ised to use 15.5KB (k byte) frames on a project (I believe the ifdefs may still be in the if_de driver). We also had other machines on that net. At one time SUNS would crash but that problem went away. I presume that the jumbo packets are only sent between machines that support them.. On Sun, 21 Feb 1999, David Greenman wrote: > >> The jumbo frames are only useful if you also have VLAN support, which we > >> don't have currently. We also need support for large mbuf clusters; this > > > >hmmm i don't get this -- why is this related to VLAN ? > > Because most ethernets consist of a mix of hosts that don't have jumbo > frame capability. If you use jumbo frames without VLANs, then ALL hosts must > support jumbo frames (and I think would also have to be gigabit ethernet > connected since jumbo frames weren't supported in 802.3...although I'm > assuming that the gigabit spec allows for jumbo frames, which may be a > bad assumption on my part). > > -DG > > David Greenman > Co-founder/Principal Architect, The FreeBSD Project > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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