Hi, Jin: Thanks ? yes, agree, sleep is the key ? this is generally corroborated from talking to experts in radios. My understanding is that this also differs between radios. I think Mitch may have a point too ? the extra bits can affect the ability of radio to sleep because the extra bits can cause fragmentation, contention and congestion depending on the conditions (including density, MTU, ability of protocol to manage congestion, timing of transmissions etc). So a general policy of keeping the bits on the wire as small as possible could never hurt. I think there is a lot to do to make OIC power friendly ? but any step (even small) towards that is always a good thing as long as we keep it cumulative. Ravi
From: ??? [mailto:jinc...@samsung.com] Sent: Thursday, February 4, 2016 8:19 PM To: Macieira, Thiago <thiago.macieira at intel.com>; Mitch Kettrick <cpm at openinterconnect.org> Cc: iotivity-dev at lists.iotivity.org; oswg at openinterconnect.org; Subramaniam, Ravi <ravi.subramaniam at intel.com> Subject: Re: Re: [dev] [oswg] Re: Default interface signaling Just a comment on energy effects from extra bits.