Hop limits still have some meaning even if you plan to communicate over a single IP hop.
However, you are right that there are many cases where we can compress the Hop Limit field. We do expect that there will be common values for the Hop Limit especially when you are doing layer 2 forwarding in the LoWPAN network. We are working on a new compression format that provides the option to compress the Hop Limit field as well as a bunch of other improvements. http://tools.ietf.org/html/draft-hui-6lowpan-hc-01 -- Jonathan Hui On Sep 11, 2008, at 8:34 AM, Peter Kuhar wrote: > Hi All, > > Why is IPv6 "Hop Limit" header obligatory in 6loWPAN? > Considering that there is "Hops Left" field in mesh header and hop > limits don't have any meaning it you don't do mesh. > > Cheers, > Peter > > _______________________________________________ > 6lowpan mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/6lowpan _______________________________________________ 6lowpan mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lowpan
