Dear Authors,

In section 3.3.2.1 (LAG/ECMP), the change suggested below articulates the 
inference of entropy in a much better way.

>>The entropy information MAY be inferred from the NVO3 overlay header or 
>>underlay header.

The entropy information should be ideally present in the overlay header e.g. 
Entropy Label for MPLS [RFC 6790], VXLAN - UDP source port. In case the overlay 
protocol does not support the necessary entropy information or the 
switches/routers in the underlay do not support parsing of the additional 
entropy information in the overlay header, the following support is needed in 
the underlay switches/routers. The underlay switches and routers should be 
programmable, i.e. select the appropriate fields in the underlay header for 
hash calculation based on the type of overlay header - the point to note is 
even the location of the underlay header in the packet will vary based on the 
type of overlay header.

Thanks,
Ramki
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