That's way too high. Your base rx requirement is Ports * queues * rxd
With a quad card you shouldn't be using more than 2 queues, so your requirement with 5 ports is 10,240 just for the receive setup. If you're using 4 queues that number doubles, which would make 25,600 not enough. Note that setting mbufs to a huge number doesn't allocate the buffers; they'll be allocated as needed. It's a ceiling. The reason for the ceiling is so that you don't blow up your memory. If your system is using 2 million mbuf clusters then you have much bigger problems than LAGG. Anyone who recommends 2 million clearly has no idea what they're doing. BC ________________________________ From: Joe Moog <joem...@ebureau.com> To: freebsd-net <freebsd-net@freebsd.org> Sent: Wednesday, August 28, 2013 9:36 AM Subject: Re: Intel 4-port ethernet adaptor link aggregation issue All: Thanks again to everybody for the responses and suggestions to our 4-port lagg issue. The solution (for those that may find the information of some value) was to set the value for kern.ipc.nmbclusters to a higher value than we had initially. Our previous tuning had this value set at 25600, but following a recommendation from the good folks at iXSystems we bumped this to a value closer to 2000000, and the 4-port lagg is functioning as expected now. Thank you all. Joe _______________________________________________ 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" _______________________________________________ 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"
