Date: Wed, 19 Oct 2011 09:11:19 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: Ihsan Junaidi Ibrahim <ihsan.junaidi@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Maximum gif(4) interfaces Message-ID: <44botd86tk.fsf@lowell-desk.lan> In-Reply-To: <D50DA316-4951-4B46-94CD-809E66EBB20D@gmail.com> (Ihsan Junaidi Ibrahim's message of "Tue, 18 Oct 2011 20:44:50 %2B0800") References: <D50DA316-4951-4B46-94CD-809E66EBB20D@gmail.com>
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Ihsan Junaidi Ibrahim <ihsan.junaidi@gmail.com> writes: > I need to build a system that need to terminate a number of 6-in-4 and 4-in-4 tunnels. > > Can someone point me to a direction, with gif auto-cloning and on GENERIC, what is the maximum number of gif interfaces/tunnels that can be supported? > > I'm on 8.2. The implementation is in src/sys/net/if_gif.c. There is no absolute limit to the number of cloned interfaces. They are stored in a linked list (as are interfaces as a whole), so having large numbers of them could be a performance issue in some cases. I would guess that such cases would mostly involve having high rates of tunnel creation and destruction, but you would have to test to be sure.home | help
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