On Wed, Feb 01, 2006 at 03:38:21PM +0800, Dinesh Nair wrote: > > > On 02/01/06 09:29 Damon Estep said the following: > >Ok, now lets go for 5000 of them. 160kbps*5000=800000kbps or 800mbps - > >full duplex. > > > >Have you ever seen a NIC or switch that can run GigE full duplex at 80% > >utilization and not at least start to fall apart? > > additionally, 5000 simultaneous SIP calls at 20ms intervals will send, > > 5,000 * 50 * 2 = 500,000 packets per second (full duplex). > > not too many boxes can handle such packet load, in spite of the relatively > small packet sizes. Indeed, a FreeBSD machine doing just routing lookups can handle somewhere around 600Kpps. FreeBSD is using a Radix tree for routing lookups, by using Linux you may choose something better performing such as LC-trie where you're able to push quite a lot more. But this is pure routing done in the kernel, with asterisk you have to bring the packets to userspace and back limiting the performance by quite a lot.
-- Kristian Larsson, Net At Once AB Email: [EMAIL PROTECTED] Phone: +46 470 592717 Cell: +46 704 910401 _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users