Xavier Vilajosana writes: > thanks, you are right. The proposed text is already indicating that. > > "In case of a destination broadcast address, the address field MUST > be filled by a short address (16bit)."
Yes, but it might be good to say that explictly, as both data frames (extended and extended addresses) and beacons (extended and short addresses) both have only one PAN ID (destination PAN ID), and still they have different values for PAN ID Compression field. I.e. with extended and extended that is zero, and with extended and short that is one... > 2015-07-22 13:31 GMT+02:00 Tero Kivinen <[email protected]>: > > Xavier Vilajosana writes: > > From the attached document what we need is (row 7) > > > > Extended Extended Present Not Present 0 > > For normal data frames yes, but not for periodic enhanced beacons, as > those will be sent to the broadcast address, i.e. the 2nd last row: > > Extended Short Present Not Present 1 > > This is because the broadcast address is presented as short address of > 0xffff. And as the Source PAN ID and Destination PAN ID are same (or > actually you only have one meaningfull PAN ID), you need to compress > them and send only one, and set the PAN ID compression bit to 1. -- [email protected] _______________________________________________ 6tisch mailing list [email protected] https://www.ietf.org/mailman/listinfo/6tisch
