[6930] in North American Network Operators' Group

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Re: Questions about Internet Packet Losses

daemon@ATHENA.MIT.EDU (Vadim Antonov)
Mon Jan 13 21:23:39 1997

Date: Mon, 13 Jan 1997 18:18:51 -0800
From: Vadim Antonov <avg@pluris.com>
To: avg@pluris.com, tli@jnx.com
Cc: nanog@merit.edu

>   The 4.3 Reno-derived TCPs (the majority) are fairly robust.

>Yeah, but I doubt that they're in the majority.  Recent stats indicate that
>about 9% of the packets out there are using an MSS of 512.  Another 1% are
>using an MSS of 256.  Only 6% are using 536, and 7% are using 1460.  This
>indicates to me that there are a whole lot of broken boxes out there still.

I'm wondering why.  The easiest way to implement TCP stack always was
to pull the pieces off BSD code.  Even oldest MS-DOS TCPs (like Phil
Karn's KA9Q) are essentially that.

--vadim

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