Date: Tue, 5 Mar 2013 01:21:31 -0000 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Dmitry Morozovsky" <marck@rinet.ru>, <freebsd-stable@FreeBSD.org> Subject: Re: carp on stable/9: is there a way to keep jumbo? (fwd) Message-ID: <A8858BC388614E019752FA7131808097@multiplay.co.uk> References: <alpine.BSF.2.00.1303050248340.32868@woozle.rinet.ru>
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You might want to try:- http://blog.multiplay.co.uk/dropzone/freebsd/carp-mtu.patch Be warned it doesn't do any validation so if you use it against physical interfaces with a smaller MTU things will likely go badly wrong, hell they may go badly wrong anyway as its just a very quick and dirty hack ;-) Regards Steve ----- Original Message ----- From: "Dmitry Morozovsky" <marck@rinet.ru> To: <freebsd-stable@FreeBSD.org> Sent: Monday, March 04, 2013 10:49 PM Subject: carp on stable/9: is there a way to keep jumbo? (fwd) > Collegaues, > > sorry, sent to the wrong list (the only escuse for me is possibly that I'm > trying to make HAST base on carp...) > > -- > Sincerely, > D.Marck [DM5020, MCK-RIPE, DM3-RIPN] > [ FreeBSD committer: marck@FreeBSD.org ] > ------------------------------------------------------------------------ > *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** > ------------------------------------------------------------------------ > > ---------- Forwarded message ---------- > Date: Tue, 5 Mar 2013 02:31:51 > From: Dmitry Morozovsky <marck@rinet.ru> > To: freebsd-fs@freebsd.org > Subject: carp on stable/9: is there a way to keep jumbo? > > Dear collesagues, > > yes, I know glebius@ overhauled carp in -current, but I'm a bit nervous to > deploy bleeding edge system on a NAS/SAN ;) > > So, my question is about current state of carp in stable/9: building HA pair I > found that carp interfaces lose jumbo capabilities: > > root@cthulhu4:~# ifconfig | grep mtu > em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 9000 > em1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 9000 > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > lagg0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 9000 > carp0: flags=49<UP,LOOPBACK,RUNNING> metric 0 mtu 1500 > carp1: flags=49<UP,LOOPBACK,RUNNING> metric 0 mtu 1500 > root@cthulhu4:~# ifconfig carp1 mtu 9000 > ifconfig: ioctl (set mtu): Invalid argument > > Is it unavoidable at the moment, or am I missing something obvious? > > Thanks! > > -- > Sincerely, > D.Marck [DM5020, MCK-RIPE, DM3-RIPN] > [ FreeBSD committer: marck@FreeBSD.org ] > ------------------------------------------------------------------------ > *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** > ------------------------------------------------------------------------ > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.
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