Re: [DNSOP] default value of draft-ietf-dnsop-avoid-fragmentation

2021-03-23 Thread Brian Dickson
On Sun, Mar 14, 2021 at 9:16 PM wrote: > Dear DNSOP participants, > > Thanks very much for good comments for > draft-ietf-dnsop-avoid-fragmentation. > > These are my proposal of Section 3.3. Default Maximum DNS/UDP payload > size. > > I'm not sure what to do with "MAY, "SHOULD", or "MUST", > so

Re: [DNSOP] default value of draft-ietf-dnsop-avoid-fragmentation

2021-03-19 Thread Jim Reid
On 19 Mar 2021, at 02:42, Viktor Dukhovni wrote: > > On Mon, Mar 15, 2021 at 05:38:40PM +, Jim Reid wrote: > >> Measuring the MTU to well-known locations on the Internet won’t be >> appropriate for some use cases. For instance inside private nets that >> aren’t connected to the Internet or f

Re: [DNSOP] default value of draft-ietf-dnsop-avoid-fragmentation

2021-03-19 Thread Donald Eastlake
Hi, On Thu, Mar 18, 2021 at 10:43 PM Viktor Dukhovni wrote: > On Mon, Mar 15, 2021 at 05:38:40PM +, Jim Reid wrote: > > > ... > ... > > This could get nasty with icky CPE > > firmware: imagine every home router in (say) Comcast’s net doing PMTU > > to the same root server. > > These would gen

Re: [DNSOP] default value of draft-ietf-dnsop-avoid-fragmentation

2021-03-18 Thread Viktor Dukhovni
On Mon, Mar 15, 2021 at 05:38:40PM +, Jim Reid wrote: > > However, operators of DNS servers SHOULD measure their path MTU to > > well-known locations on the Internet, such as [a-m].root-servers.net > > or [a-m].gtld-servers.net at setting up the servers. > > I think it would be better to repl

Re: [DNSOP] default value of draft-ietf-dnsop-avoid-fragmentation

2021-03-15 Thread Jim Reid
> On 15 Mar 2021, at 04:16, fujiw...@jprs.co.jp wrote: > > Dear DNSOP participants, > > Thanks very much for good comments for draft-ietf-dnsop-avoid-fragmentation. > > These are my proposal of Section 3.3. Default Maximum DNS/UDP payload size. > > I'm not sure what to do with "MAY, "SHOULD"

[DNSOP] default value of draft-ietf-dnsop-avoid-fragmentation

2021-03-14 Thread fujiwara
Dear DNSOP participants, Thanks very much for good comments for draft-ietf-dnsop-avoid-fragmentation. These are my proposal of Section 3.3. Default Maximum DNS/UDP payload size. I'm not sure what to do with "MAY, "SHOULD", or "MUST", so please give us your opinion. If it is acceptable, I will