Date: Thu, 21 Apr 2016 14:52:57 -0700 From: "K. Macy" <kmacy@freebsd.org> To: Dustin Marquess <dmarquess@gmail.com> Cc: "Eggert, Lars" <lars@netapp.com>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Issues with ixl(4) Message-ID: <CAHM0Q_MahwEpU53Vn02Pzm73BKbnNtUF6=5kxbw7opC3MgS_PQ@mail.gmail.com> In-Reply-To: <CAJpsHY4UQZ%2BLS3C_17b%2B-QJq7ah%2BnuNBKhqyVs6zR0Yq5qxfuw@mail.gmail.com> References: <CAJpsHY4e_ycce3AGMXw93Z4Pbbgsg2yZk65q3vO9KTscSL3MaA@mail.gmail.com> <2C78DBCF-26F2-44D0-A45E-6EE8918648EA@netapp.com> <CAHM0Q_OMaRVoDZfufyrbMK0GwrG=ZPNYPScLG7YrRvkWfFwRYA@mail.gmail.com> <CAJpsHY4UQZ%2BLS3C_17b%2B-QJq7ah%2BnuNBKhqyVs6zR0Yq5qxfuw@mail.gmail.com>
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On Wednesday, April 20, 2016, Dustin Marquess <dmarquess@gmail.com> wrote: > I tried backing out that change and everything worked for a few minutes > and then started acting up again. Then I notice Sean Bruno's "TCP Packets > Drop!!!" email about LACP. I disabled LACP on the switch side and then > changed the lagg config from "lacp" to "roundrobin", and so far so good. > On the switch side it looks like member ports were randomly bounding in the > LACP bundle, and when I'd tcpdump an interface I wouldn't see anything > until another LACP&LLDP packet came in. > > So something seems to be broken with lagg's LACP support recently. The > good news is I don't think the route caching is causing this problem. I'll > put it back in and retest to make sure though. > > Glad to hear I was in error. -M > Thanks for the help! > -Dustin > > On Tue, Apr 19, 2016 at 6:15 PM, K. Macy <kmacy@freebsd.org > <javascript:_e(%7B%7D,'cvml','kmacy@freebsd.org');>> wrote: > >> On Mon, Apr 18, 2016 at 10:45 PM, Eggert, Lars <lars@netapp.com >> <javascript:_e(%7B%7D,'cvml','lars@netapp.com');>> wrote: >> > I haven't played with lagg+vlan+bridge, but I briefly evaluated XL710 >> boards last year ( >> https://lists.freebsd.org/pipermail/freebsd-net/2015-October/043584.html) >> and saw very poor throughputs and latencies even in very simple setups. As >> far as I could figure it out, TSO/LRO wasn't being performed (although >> enabled) and so I ran into packet-rate issues. >> > >> > I basically gave up and went with a different vendor. FWIW, the XL710 >> boards in the same machines booted into Linux performed fine. >> > >> >> FWIW, NFLX sees performance close to that of cxgbe (by far the best >> maintained, best performing FreeBSD 40G driver) with an iflib >> converted driver. The iflib updated driver will be imported by 11 but >> won't become the default driver until 11.1 for wont of QA resources at >> Intel. >> >> -M >> > >
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