That is also the common case. When you want to offload something for destination, you have to do IP reassembly.
-----Original Message----- From: Stephen Kent [mailto:k...@bbn.com] Sent: Monday, April 09, 2012 2:50 PM To: paul_kon...@dell.com Cc: Xiangyang zhang; ipsec@ietf.org Subject: RE: [IPsec] draft-zhang-ipsecme-multi-path-ipsec At 9:49 AM -0500 4/9/12, <paul_kon...@dell.com> wrote: > >At 4:50 PM +0000 4/6/12, Xiangyang zhang wrote: >>>>Stephen, >>> >>>You understand this method very well. The disadvantage is the >>>possible severity of out of order delivery. Even with single SA, it >>>can also cause the out of order problem. As for re-order, just like >>>TCP reorder or IP reassembly, it can be done at intermediate node or end >>>host. >> >>The TCP and IP specs do not envision an intermediary trying to put >>packets back in order or performing reassembly. When middle bioxes do >>this performance often suffers. > >In fact, reassembly at intermediate nodes is not possible at all, >because IP can route packets on several routes. The full stream of >packets is only available at the end points, so that is the only place >where reassembly can be done. > > paul Paul, I agree in general, but I was considering the case where the intermediate node is very enough to the destination. Steve _______________________________________________ IPsec mailing list IPsec@ietf.org https://www.ietf.org/mailman/listinfo/ipsec
