[129747] in North American Network Operators' Group
Re: Did Internet Founders Actually Anticipate Paid,
daemon@ATHENA.MIT.EDU (Bill Stewart)
Fri Sep 17 17:21:10 2010
In-Reply-To: <AANLkTikh3Oes+rn5x_WsZYGxvx5Gp8fLc0rmEqXS8w1L@mail.gmail.com>
Date: Fri, 17 Sep 2010 14:20:46 -0700
From: Bill Stewart <nonobvious@gmail.com>
To: Steven Bellovin <smb@cs.columbia.edu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Sorry, fat-fingered something when I was trying to edit.
On Fri, Sep 17, 2010 at 2:12 PM, Bill Stewart <nonobvious@gmail.com> wrote:
> On Tue, Sep 14, 2010 at 6:51 PM, Steven Bellovin <smb@cs.columbia.edu> wr=
ote:
>> No, they bought AT&T, which [...] =A0But yes, SBC is the controlling pie=
ce of the new AT&T.
Most of the wide-area ISP network is the old AT&T, while
much of the consumer broadband grew out of the SBC DSL side.
>> As for the two /8s -- not quite. =A0Back in the 1980s, AT&T got 12/8. =
=A0We soon learned that we couldn't make good use of it, since multiple lev=
els of subnetting didn't exist. =A0We offered it back to Postel in exchange=
for 135/8 -- i.e., the equivalent in class B space -- but Postel said to k=
eep 12/8 since no one else could use it, either. =A0This was all long befor=
e addresses were tight. =A0When AT&T decided to go into the ISP business, c=
irca 1995, 12/8 was still lying around, unused except for a security experi=
ment I was running.* =A0 =A0However, a good chunk of 135/8 went to Lucent (=
now Alcatel-Lucent) in 1996, though I don't know how much.
The AT&T bits kept some fraction of 135; I don't know how
much without dredging through ARIN Whois, but at least 135.63/16 is on
my desktop.
If I remember correctly, which is unlikely at this point,
12/8 was the Murray Hill Cray's Hyperchannel network, which I'd heard
didn't know how to do subnetting except on classful boundaries, so it
could happily handle 16M hosts on its Class A, and in fact only had
two or three.
--=20
----
=A0 =A0 =A0 =A0 =A0 =A0=A0 Thanks;=A0 =A0=A0 Bill
Note that this isn't my regular email account - It's still experimental so =
far.
And Google probably logs and indexes everything you send it.
