[ih] Exterior Gateway Protocol

[Scott Brim]

On Fri, Sep 4, 2020 at 1:29 AM Joseph Touch <touch at strayalpha.com> wrote:

> On Sep 2, 2020, at 2:33 PM, Guy Almes via Internet-history <
> internet-history at elists.isoc.org> wrote:
> ...
>  As Vint just reminded me, not only was the variable length AS path an
> unusual characteristic, but BGP's use of TCP was quite controversial. But,
> in addition to other advantages, the use of TCP made possible several early
> implementations.
>
>
> Can you tell us more about what part of BGP’s use of TCP was controversial
> at the time?
>
> I.e., other than the error of linking “this path is up” inside BGP to “TCP
> is stable over that path”, a decision that required multiple fixes to
> address (MD5, TCP-AO, RST rejection, and route dampening).
>

Layering. You're setting up a connection to a node in a different AS, so
you needed AS-level routing to tell you the path, so you need BGP so etc.