Hello, I'm still trying to understand the problem :-) Unless I missed an episode, the context is connection-oriented cellular networks under IP (whatever that means)
You say that the RA packets (unicasted) will wake up 90% of hosts in the subnet. Because roughly %90 of hosts are dormant, in general. I still believe that 30 minutes is longtime. Thus the problem is not energy consumption perhaps (without justification). But there is a problem if you link-layer page many many hosts simultaneously to deliver an RA. The paging channels may be saturated. From L2 perspective, this would be similar to a situation where many many cellular users are called simultaneously, resulting in call setup delays. Personally, I suspect that this may be a much more serious problem than energy consumption. But, firstly, your draft doesn't make it clear, and secondly, I couldn't see how your draft solved this problem. The real solution, imho, is to distribute the unicast RAs over time. For example, if there are 5 hosts in the subnet and the RA period is 5 minutes, then start: Min1 - send the 1st RA Min2 - send the 2nd RA ... Min5 - send the 5th RA and goto start. This makes sense? Sorry if this is already specified somewhere. Otherwise, you may want to filter the RAs at the paging agent. pars -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------