Re: AD review discuss/comments for draft-ietf-syslog-dtls

Interesting because RFC4347 IMHO states clearly that IP fragmentation  
(IP not UDP) must be avoided and thus dtls must determine the MTU.

** Sent from my tiny phone keyboard **

On May 25, 2010, at 11:03 PM, <[email protected]> wrote:

> Tim Evens wrote:
>> Correct, in RFC5426 the max size is 64K which is the max length in
>> UDP.  UDP sizes of greater than MTU are only achievable via IP layer
>> fragmentation, as you also indicated.  I'm under the impression that
>> DTLS does NOT support IPv4 fragmentation since in RFC4347 it states
>> in Section 4.1.1 "Each DTLS record MUST fit within a single
>> datagram."
>
> AFAIK when running DTLS over UDP, "datagram" here refers to UDP
> datagrams, not IP packets (and one UDP datagram can be split
> to several IP packets).
>
> Best regards,
> Pasi
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