On Thu, Mar 07, 2013 at 06:13:06PM +0100, Simon Horman wrote: > On Wed, Mar 06, 2013 at 02:57:59PM -0800, Ben Pfaff wrote: > > RFC 3443 says that an outgoing MPLS TTL of zero is invalid, so we must send > > packets that have such a TTL post-decrement to the controller rather than > > allowing them to continue through the OpenFlow tables. > > > > Here is the text from RFC 3443 that implies this behavior: > > > > oTTL: This is the TTL value used as the outgoing TTL value (see > > section 3.5 for exception). It is always (iTTL - 1) unless otherwise > > stated. > > > > oTTL Check: Check if oTTL is greater than 0. If the oTTL Check is > > false, then the packet is not forwarded. Note that the oTTL check is > > performed only if any outgoing TTL (either IP or MPLS) is set to oTTL > > (see section 3.5 for exception). > > > > That is, the output TTL is one less than the input TTL, and a packet with > > an output TTL of 0 must not be forwarded. > > > > CC: Bruce Davie <b...@nicira.com> > > Signed-off-by: Ben Pfaff <b...@nicira.com> > > No objections here. > > Reviewed-by: Simon Horman <ho...@verge.net.au>
Thanks. I applied this to master. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
