Hello, On Tue, 2006-08-08 at 12:37 +0200, Francis Dupont wrote: > In your previous mail you wrote: > > The I-D: > draft-madanapalli-ipv6-periodic-rtr-advts-00.txt > proposes several changes to ND procedures and parameters. > > => I strongly object not about the document itself but about its > principle because IMHO the link-layer should adapt, not the network layer.
I agree with you of course. But I was thinking of this issue, i.e. "how the link layer could adapt?"... It's not that easy. Ideally, the dormant host's receiver circuit would be synchronized with the router's periodic RAs. The receiver circuit would be switched ON exactly when the RA arrives. But unfortunately, between the AR and the host, there is an access point. The RA messages may be queued and delayed at the access point (mixed up with other link layer frames). This queuing delay may foil our dormant mode synchronization, and the host may miss the RA messages :-( This means that, perfect dormant mode synchronization can be more easily achieved between the host and the access point (i.e. at the link layer). In this case, however, the router's RAs will awaken the dormant host. (unless the L2 access point recognizes the RA packets and forwards them at the right time, i.e. when the host's receiver is ON). Difficult issue. Regards! pars > Regards > > [EMAIL PROTECTED] > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > [email protected] > Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
