On Thu, Jul 19, 2018 at 9:16 AM David Ahern <dsahern@xxxxxxxxx> wrote: > > Chatting with Nikolay about this and he brought up a good corollary - ip > fragmentation. It really is a similar problem in that memory is consumed > as a result of packets received from an external entity. The ipfrag > sysctls are per namespace with a limit that non-init_net namespaces can > not set high_thresh > the current value of init_net. Potential memory > consumed by fragments scales with the number of namespaces which is the > primary concern with making neighbor tables per namespace. Nothing new, already discussed: https://marc.info/?l=linux-netdev&m=140391416215988&w=2 :) -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html