Hi Sipos, On Tue, May 10, 2016 at 11:30:19PM +0200, Sipos Csaba wrote: > Maybe I am misunderstanding something, but I really don't see what is > the reason behind handling the echo requests in the GGSN instead of > the gtp-u stack itself. Can someone please shed some light on this > one?
because when you send an ECHO request, you want to know if the full GTP stack on the other side is still alive, both for control and for user plane? If you automatically replied to them from the kernel, it mihgt be that just the user plane (kernel space) is still alive, while the control plane (user space) is already dead? -- - Harald Welte <[email protected]> http://netfilter.org/ ============================================================================ "Fragmentation is like classful addressing -- an interesting early architectural error that shows how much experimentation was going on while IP was being designed." -- Paul Vixie
