[ovs-dev] [PATCH 1/6] vxlan: Allow for VXLAN extensions to be implemented

Tom Herbert therbert at google.com
Thu Jan 8 00:23:57 UTC 2015


On Wed, Jan 7, 2015 at 4:14 PM, Thomas Graf <tgraf at suug.ch> wrote:
> On 01/07/15 at 04:02pm, Tom Herbert wrote:
>> Do you know how could GPE work with GBP they want to use the same bits
>> in header for data? Seems like these are mutually exclusive
>> extensions. RCO should be fine with either :-)
>
> Yes, GBP and GPE are mutually exclusive extensions. Although
> GPE would allow to define an intermediate header for additional
> metadata, f.e. encoded as GUE or Geneve options.

The latest GPE draft uses eight bits for next protocol, so if you make
the security field eight bits it would fit nicely in the octet before
the next protocol.



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