[TUHS] OSI stack (Was: Posters)

Noel Chiappa jnc at mercury.lcs.mit.edu
Thu Feb 7 03:49:13 AEST 2019

    > On Wed, Feb 06, 2019 at 10:16:24AM -0700, Warner Losh wrote:

    > In many ways, it was a classic second system effect because they were
    > trying to fix everything they thought was wrong with TCP/IP at the time

I'm not sure this part is accurate: the two efforts were contemporaneous; and
my impression was they were trying to design the next step in networking, based
on _their own_ analysis of what was needed.

    > without really, truly knowing the differences between actual problems
    > and mere annoyances and how to properly weight the severity of the issue
    > in coming up with their solutions.

This is I think true, but then again, TCP/IP fell into some of those holes
too: fragmentation for one (although the issue there was unforseen problems in
doing it, not so much in it not being a real issue), all the 'unused' fields
in the IP and TCP headers for things that never got really got
used/implemented (Type of Service, Urgent, etc).

`	 Noel

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