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Re: Is Fragmentation at IP layer even needed ?

2016-02-08 19:08:01
On 02/08/2016 09:08 PM, Warren Kumari wrote:


On Mon, Feb 8, 2016 at 4:06 PM Fernando Gont <fgont(_at_)si6networks(_dot_)com
<mailto:fgont(_at_)si6networks(_dot_)com>> wrote:

    On 02/08/2016 08:20 PM, Phillip Hallam-Baker wrote:
    > On Mon, Feb 8, 2016 at 5:39 PM, Carsten Bormann <cabo(_at_)tzi(_dot_)org
    <mailto:cabo(_at_)tzi(_dot_)org>> wrote:
    >> Ronald Bonica wrote:
    >>> The words "many" and "some" don't do justice to the
    conversation. 
    https://tools.ietf.org/html/draft-ietf-v6ops-ipv6-ehs-in-real-world-02
    provides more concrete numbers from real-world observation.
    >>
    >> Ah, but the result is much simpler.
    >>
    >> Some other real world data (Google QUIC experiments) already tell us
    >> that a sizable part of the Internet (was it 7 %?) is not
    reachable via
    >> UDP at all.  This just ups that number slightly for IPv6 and UDP
    >> protocols that don't have their own segmentation.
    >>
    >> UDP, it was nice to have known you.
    >
    > Maybe what we needed all along was a better TCP that allowed data to
    > be sent on the first packet.

    FWIW, TCP does allow you to send data in the SYN.


https://tools.ietf.org/html/rfc7413 for those who are wondering. 

Even pre-fast open TCP already allowed this -- however, those data can
only be *consumed* once the 3WHS is complete...

Cheers,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont(_at_)si6networks(_dot_)com
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