> I couldn't find an easy way to search the archive > for prior discussions on this topic but the > datagram tag size of 7 bits seems too low to me. > > The max data rate for 802.15.4 is 250kbps. > Of this, lets assume that one only achieves about > 128kbps or 16KBps. At this rate, an application could > potentially be pumping out 128-byte packets (this > is long enough to cause each packet to be fragmented) > at the rate of 128 packets per second and cause the > tag field to rollover every second. So to avoid any > potential of confusion due to tag reuse, one would > have to assume that packets do not stay in the > multihop network for more than a second or so. This > expectation seems unreasonable (especially > for a reactive routing protocol where route discovery > alone might take this long). > > thoughts/comments?
Interesting point, but I am really not sure how often the tag field reuse happen in 6lowpan scenarios. The major applicable connectivity amongst 6lowpan nodes are simple control. Anything else ? Regards, Daniel (Soohong Daniel Park) Mobile Platform Laboratory, SAMSUNG Electronics. _______________________________________________ 6lowpan mailing list [email protected] https://www1.ietf.org/mailman/listinfo/6lowpan
