On Sun, Dec 14, 2014 at 6:23 PM, David P. Discher <d...@dpdtech.com> wrote: > > So, I think I’ve identified the issue. In sys/net/ieee8023ad_lacp.c, > lacp_pdu_input() has a sanity check : > > if (m->m_pkthdr.len != sizeof(*du)) { > goto bad; > } > > I added some debugging information in if_lagg, and ran with it. The lacpdu > packet that being sent by the TP-Link switch is 4 bytes longer than the > FreeBSD "struct lacpdu du”. > > em1: lacp_pdu_input-sizeof(du) bad m_pkthdr.len=128 sizeof(du)=124 > > My packet captures shows the packet size differing as well. > > I’m still poking around. I’ve been trying to look for the official LACPDU > binary/wire format … if someone can point me to the reference for that, that > would be helpful (at least my own understanding).
Try here: http://standards.ieee.org/findstds/standard/802.1AX-2008.html > > Not exactly sure what these extra 4 bytes are at the end of the packet. > Still trying to figure that out. > > > - > David P. Discher > http://davidpdischer.com/ > AIM: DavidDPD | Y!M: daviddpdz > > > > On Dec 4, 2014, at 8:41 PM, David P. Discher <d...@dpdtech.com> wrote: > >> Thanks Adam - >> >> On Dec 4, 2014, at 1:58 PM, Adam McDougall <mcdou...@egr.msu.edu> wrote: >> >>> >>> Is the switch side set to "active" for the lacp mode (instead of >>> passive)? Also, try: >>> sysctl net.link.lagg.0.lacp.lacp_strict_mode=0 >>> >>> If either of those work, I'll explain more, don't have time to dig for >>> old email right this minute. >> >> Yes, the switch was in active mode. Turn strict mode off (which I thought I >> did before, but of course this sysctl clears when destroying the interface). >> So, the LACP did finally negotiated, at least in ifconfig : > _______________________________________________ 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"