I agree that one could benefit in some cases from NTP through RA's, however I don't see any info on "cooperation" between DHCPv6 and RA in your draft, i.e. what is you get your NTP through both channels (both RA and DHCPv6) ? What if content is different on these 2 channels ? What if (if received on both channels) the content of one of them is not available anymore at some point in time ? ..., Apart from that, we now have DNS support in RA, you're adding NTP, what's next ... ? If more info gets sent through RA, more clashes are possible in case the info is also present though DHCPv6, hence the more complex it'll get letting them work together.
regs Carl Wuyts -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Hing-Kam (Kam) Lam Sent: donderdag 22 december 2011 2:15 To: Samita Chakrabarti Cc: 6man Mailing List Subject: Re: IPv6 Router Advertisement Option for NTP Server Configuration Yes, i agree with Manav and Samita. There are networks where SLAAC is essential and NTP being a core component, must get extended. Kam On Thu, Dec 22, 2011 at 6:14 AM, Samita Chakrabarti <[email protected]> wrote: > > Agree with Manav on the usecases. > > Adhoc type of networks, m2m IoT networks and some home networks benefit from > SLAAC where DHCP Service may not make sense or may be an overhead to maintain. > > -Samita > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of Bhatia, Manav (Manav) > Sent: Wednesday, December 21, 2011 3:52 PM > To: Doug Barton > Cc: 6man Mailing List > Subject: RE: IPv6 Router Advertisement Option for NTP Server > Configuration > > Hi Doug, > >> >> Sort of surprised that no one else has responded so far, but I'll >> bite. >> Quite simply, "no." Slightly less simply, "use DHCP since that's what >> it's for." >> > > I wish it were this simple. > > Different operators have different requirements and preferences based on > their environments. I have seen deployments where SLAAC is much more useful > than DHCPv6. I've seen deployments where DHCPv6 is needed. So both have a > place and we should let the operators decide what they want to use. > Environments with 4 to 20 devices in them (small businesses) may not want the > complexity of setting up a central server. Those environments are probably > more suited for SLAAC. > > We have heard customers asking SLAAC to be extended to support NTP, > "boot-file", "next-server" and a few other things that are currently only > available with DHCP. > > Currently, operators need to use both SLAAC and DHCP to run their networks. > This is far from ideal. Far better for organizations to look at 2 complete > solutions and pick the solution that works best for them in their environment. > > Today, we can get NTP server information only with DHCP. DHCP only works > after RAs have been processed. In some environments (mobile IPv6) delays in > acquiring NTP and other servers information is critical and waiting for DHCP > to come up is NOT an ideal solution. > > Cheers, Manav > > > > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > [email protected] > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > [email protected] > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
