Dear Lucy, I'm responding to your question to chip vendors about using NVGRE with your UDP encap draft.
It isn't that supporting any one packet format in hardware is a problem. The issue is the number of formats that need to be supported by a chip - each may be small but the number adds up. Adding another packet format variant isn't justified and would be burdensome for the chips. The VXLAN packet format already provides for use cases where a flow field in the UDP header is desired. There is no need to duplicate that capability by adding an NVGRE in UDP format. We would be strongly against udp encapsulation of NVGRE. Regards, Pat [Lucy] If NIC hardware support VxLAN which use UDP port for the flow entropy, it should be easy to support gre-in-udp encaps as well. Will be great to see chip vendor comment on this. Please take a look at the gre-in-udp encapsulation proposal (below), welcome comment on it. Regards, Lucy Here is the draft. The TSVWG will adopt it as WG draft soon. http://datatracker.ietf.org/doc/draft-yong-tsvwg-gre-in-udp-encap/ Regards, Lucy
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