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

<Pasi.Eronen@nokia.com> Wed, 26 May 2010 06:05 UTC

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From: Pasi.Eronen@nokia.com
To: tim@evensweb.com, turners@ieca.com, ietfc@btconnect.com
Date: Wed, 26 May 2010 08:03:01 +0200
Thread-Topic: [Syslog] AD review discuss/comments for draft-ietf-syslog-dtls
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Subject: Re: [Syslog] AD review discuss/comments for draft-ietf-syslog-dtls
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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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