> I'm wondering... what if, in the hypothetical routing protocol "Babble", > one got rid of multicast hellos and ETX entirely, and routed using RTT > measured by unicast hellos.
Interesting idea. I think that's a perfectly legitimate implementation of Babel with Unicast Hellos: we're leaving the cost computation algorithm unspecified, ETX is just an implementation suggestion in Appendix A. > Wouldn't this take delays from ARQ'ed packet oss into account have > results somehow similar to ETX? 802.11 has a default ARQ timeout of 1µs, which is likely to be drowned by congestion. I guess the only way to find out is to try it out. You'll need to change the packet format of the ETX extension, which only has 1µs granularity. -- Juliusz _______________________________________________ Babel-users mailing list Babel-users@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/babel-users
