Messages in this thread | | | From | Jesse Gross <> | Date | Fri, 27 Jan 2012 13:55:14 -0800 | Subject | Re: [patch v4, kernel version 3.2.1] net/ipv4/ip_gre: Ethernet multipoint GRE over IP |
| |
On Fri, Jan 27, 2012 at 2:54 AM, Joseph Glanville <joseph.glanville@orionvm.com.au> wrote: > Under pathological load OVS suffers in benchmarks, continual > establishment of new flows is really not good for it - I haven't > observed this personally though. > It does however worry me that this could be used as a viable DoS.. I > don't really know what could be done to mitigate this however.
OVS allows each input port to have a separate genl socket associated with it for the purpose of sending flow misses to userspace. Currently userspace uses this to round-robin around these sockets when handling flow setup requests in order to prevent one port from DoSing the others.
| |