Subject: Re: draft-ietf-v6ops-mech-v2-00.txt

From: [email-masked]
Date: Thu, 13 Mar 2003 16:33:37 +0100

Hi all,

Erik Nordmark wrote:

> There are no open issues in the document that I am aware
> of. If folks have issues please bring them up on the
> list so we can try to resolve them before or at the
> v6ops meeting next week.

I have some wording confusing there below:

> -  Clarified that the dynamic path MTU mechanism in
>    section 3.2 is OPTIONAL (...)

Assume an implementation not implementing dynamic PMTU.

> If it is not implemented instead the node MUST instead
> limit the size of the IPv6 packets it tunnels to 1280
> bytes i.e., treat the tunnel interface as having a
> fixed interface MTU of 1280 bytes.

"MUST NOT" send packet >1280
   -> "MTU>1280" is "Absolute prohibition"

> An implementation MAY have a configuration knob which
> can be used to set a larger value of the tunnel MTU
> than 1280 bytes,

"MAY" -> "MTU>1280" is freely allowed

This seems to be quite in contradiction ?

Thanks,
Robert