Date: Wed, 15 Aug 2001 09:58:24 -0700 From: Mike Hogsett <hogsett@csl.sri.com> To: Mike Tancsa <mike@sentex.net> Cc: Mike Hogsett <hogsett@csl.sri.com>, freebsd-stable@freebsd.org Subject: Re: VLAN's Message-ID: <200108151658.f7FGwOC04876@glob.csl.sri.com> In-Reply-To: Message from Mike Tancsa <mike@sentex.net> of "Tue, 14 Aug 2001 19:28:24 EDT." <5.1.0.14.0.20010814192514.04e2b4a8@192.168.0.12>
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Thanks this is very helpful. I have been banging on it this morning. I am using a Cisco Cat 5000 series swtich. Which trunk type should I be using? I have tried both "isl" and "dot1q" and neither are working at the moment... Thanks again, - Mike > At 04:18 PM 8/14/2001 -0700, Mike Hogsett wrote: > > >I have been reading and searching online and at FreeBSD.org for > >information regarding VLAN's and FreeBSD. What I have found looks > >promising. From the posts I found in various mail archives at > >FreeBSD.org it would appear that many people have been using a patch > >to "fix" the VLAN code for their systems. This patch appears to be > >for 4.2. Is this patch still required for 4.3-STABLE systems? > > from a recent copy of STABLE, > > man 4 vlan shows.... > > The NICs that support oversized frames are as follows: > de(4) requires defining BIG_PACKET in the > /usr/src/sys/pci/if_de.c source file and rebuilding the > kernel. The hack works only for the 21041, 21140, and > 21140A chips. > fxp(4) supports long frames for the vlan natively. > tl(4) does support long frames. > tx(4) may begin supporting long frames soon. > xl(4) supports long frames only if the card is built on a newer > chip (Cyclone and above). > Note: Except for fxp(4), none of the above drivers inform the vlan driv > er > about their support for long frames. Just fix the MTU of a vlan inter- > face if it appears to be lower that 1500 bytes after attaching the vlan > to a parent interface that is known to support long frames. > > > I have used the fxp card with good results. The only annoying thing is that > I see a lot of run frame errors on the switch. I dont see any performance > hit, but its there none the less. e.g. > > ifconfig vlan0 192.168.1.1 netmask 255.255.255.252 vlan 123 vlandev fxp0 > mtu 1500 up > > is all you need. I have a box with a 13 of these interfaces and it does > what I want with about 20Mb/s throughput. > > ---Mike > > > > > >Also, does FreeBSD (4.3-STABLE) support Cisco Etherchannel? If so, > >can I bond two interfaces together then setup VLANs on the logical > >bonded interface? > > > > - Michael Hogsett > > > > > > > > > > > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org > >with "unsubscribe freebsd-stable" in the body of the message > > -------------------------------------------------------------------- > Mike Tancsa, tel +1 519 651 3400 > Network Administration, mike@sentex.net > Sentex Communications www.sentex.net > Cambridge, Ontario Canada www.sentex.net/mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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