Hello everyone, I was wondering if there is any reference as to how big OpenConnect's ocserv can scale in the terms of simultaneous connected clients? Assuming the clients generate little traffic (less than 1 Megabyte per Minute), how many connections could a dedicated server handle? I noticed that ocserv creates a new TUN device for each connected client. Looking at the following discussion on the maximum number of networking interfaces in Linux I found this limit (see https://lists.fedoraproject.org/pipermail/users/2010-September/383512.html) > > On Fri, 2010-09-24 at 15:02 -0700, byrdca at gmail.com wrote: > > Today I was asked about the maximum number of NICs supported by the > > Linux kernel. My initial response was "probably more than you need". > > looked in include/linux/limits.h, I didn't expect to find it but that > > was my first thought. I then started digging through drivers/net but > > I soon got lost. I'm after the hard data for the maximum number of > > Its been bothering me that I didn't know where to find the answer. I > > ethernet cards a modern Linux system supports, anyone have any ideas > > on where I find this data? > > Looking at the code (especially, register_net_dev) it seems that there > are two possible limits: > 1. Ethernet device name must not exceed 16 bytes. > 2. Total number of network devices must not exceed 32768. > (const int max_netdevices = 8*PAGE_SIZE in __dev_alloc_name) > > - Gilboa Which does not seem very confident as I hardly doubt that the Linux networking stack is capable of handling so many network interfaces efficiently. I would be very glad about any confirmed scalability tests. Thanks! Best Regards -- Valentin Sawadski Founder & Embedded Software Tel.: +49 - (0) 89 - 716 77 86 - 15 Fax: +49 - (0) 89 - 716 77 86 - 99 Mobil: +49 - (0) 162 - 460 163 4 facebook.com/tado | twitter.com/tado | youtube.com/tado www.tado.com | tado? GmbH | Lindwurmstr. 76 | 80337 Munich | Germany Managing Directors: Christian Deilmann | Johannes Schwarz | Leopold v. Bismarck Registered with the Commercial Register Munich as HRB 194769 B | VAT-No: DE 280012558
