Open Stack

On 09/30/2015 03:29 PM, Murali R wrote:
> Russell,
> 
> Are any additional options fields used in geneve between hypervisors at
> this time? If so, how do they translate to vxlan when it hits gw? For
> instance, I am interested to see if we can translate a custom header
> info in vxlan to geneve headers and vice-versa. 

Yes, geneve options are used. Specifically, there are three pieces of
metadata sent: a logical datapath ID (the logical switch, or network),
the source logical port, and the destination logical port.

Geneve is only used between hypervisors. VxLAN is only used between
hypervisors and a VTEP gateway. In that case, the additional metadata is
not included. There's just a tunnel ID in that case, used to identify
the source/destination logical switch on the VTEP gateway.

> And if there are flow
> commands available to add conditional flows at this time or if it is
> possible to extend if need be.

I'm not quite sure I understand this part.  Could you expand on what you
have in mind?

-- 
Russell Bryant