RE: Meta-issues: On the deprecation of the fragmentation function

["Templin, Fred L" <[e-mail]>]

Hi Ron,

> -----Original Message-----
> From: [e-mail] [mailto:[e-mail]] On Behalf Of
> Ronald Bonica
> Sent: Wednesday, July 10, 2013 12:22 PM
> To: james woodyatt; [e-mail]
> Subject: RE: Meta-issues: On the deprecation of the fragmentation
> function
> 
> Hi James,
> 
> If ICMPv6 PTB messages are unreliable, fragmentation breaks just as
> badly as PMTUD.

I'm trying to understand that, but maybe you are talking about
IP fragmentation? SEAL fragmentation is a different thing, and
can be used in place of IP fragmentation.

Thanks - Fred
[e-mail]

> At the risk of going off-topic, please take a look at draft-bonica-
> intarea-gre-mtu-02.
> 
>                                                  Ron
> 
> 
> > -----Original Message-----
> > From: [e-mail] [mailto:[e-mail]] On Behalf
> Of
> > james woodyatt
> > Sent: Wednesday, July 10, 2013 2:23 PM
> > To: [e-mail]
> > Subject: Re: Meta-issues: On the deprecation of the fragmentation
> > function
> >
> > On Jul 10, 2013, at 08:49 , Ronald Bonica <[e-mail]>
> wrote:
> > > [...]
> > > Probably, the best alternative is for the tunnel ingress router to
> > tunnel ingress router to discover the PMTU to the egress. When the
> > tunnel ingress router receives a packet that is so large that it
> cannot
> > be forwarded through the tunnel, it discards the packet and sends an
> > ICMP PTB to the packet's originator. The packet's originator then
> > modifies its sending behavior based upon its new estimate of the PMTU
> > associated with the destination.
> > > [...]
> >
> > ICMPv6 packet too big errors are unreliable on the real-world
> Internet.
> >
> > I hate to sound like a broken record, but I will: I look forward to
> > reviewing a proposal to update to Generic Packet Tunneling in IPv6
> [RFC
> > 2473] for implementing tunnel path MTU discovery at the encapsulation
> > layer [c.f. RFC 4821].
> >
> >
> > --
> > james woodyatt <[e-mail]>
> > core os networking
> >
> > --------------------------------------------------------------------
> > IETF IPv6 working group mailing list
> > [e-mail]
> > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> > --------------------------------------------------------------------
> >
> 
> 
> 
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> [e-mail]
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------