On Dec 17, 2014, at 9:11 PM, Craig Rodrigues <rodr...@freebsd.org> wrote: > > > And here: > > http://www-01.ibm.com/support/docview.wss?uid=isg1VM64842 >
Ah, wow … that IBM article - what I’m seeing is the four-byte Frame Check Sequence (FCS). I download the IEEE Std 802.1AX-2008 PDF, Figure 5–8— LACPDU structure, page 33, shows this structure with the FCS field. (802.3ad has evolved into 802.1AX) - The 802.3ad spec PDF is $155. It’s unclear if this was added to a later version spec. And with FCS field, FreeBSD LACP just does not work. So … it would seem that big iron routers and switches either are not adding in the FCS field. Or - it is possible, with how the IBM support article is written - it is possibly this field might be getting stripped by some NIC hardware or drivers. Ok … I’m going to investigate this further. I’m working on getting/borrowing a few different vendors switches with LACP and see what I can find out. - David P. Discher http://davidpdischer.com/ AIM: DavidDPD | Y!M: daviddpdz _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
