Henning,
Lucent does indeed advertize the 6M+ addresses reported on the page. The
135/8 prefix was allocated to ATT in the early 80's, in addition to ATT's
own class A. I was told that the class B numbers in that prefix had been
allocated to various subnet within ATT. After the ATT/Lucent split, Lucent
inherited a fraction of the 135/8 prefix, presumably the class B networks
addresses that covered subnets in the various Lucent facilities. The 6M+
make up about 41% of the 16777216 addresses in a /8. In January 1999,
Lucent started to announce all these addresses in their DNS server. Don't
ask me why they do that, or whether they would consider returning unused
blocks to the community. We are merely reporting what we observe... See
ftp://ftp.telcordia.com/pub/huitema/stats/index.html or
http://www.netsizer.com/ for more details on our methodology.
At 11:38 AM 11/26/99 -0500, Henning Schulzrinne wrote:
>David Newman wrote:
>>
>> Telcordia's Christian Huitema conducts an ongoing survey that counts, among
>> other things, the amount of allocated IPv4 space and number of hosts in
>> classes A, B, and C. You can find a recent sample here:
>>
>> ftp://ftp.telcordia.com/pub/huitema/stats/oct99.html#efficiency
>
>I noticed a rather strange number in that page:
>
>6,989,652 hosts are listed for Lucent. Lucent has 153,000 employees, so
>every employee has 45 hosts. Either they have been equipping every
>pencil, badge and styrofoam cafeteria tray with a host name, or the
>measurement methodology needs some explanation...
>
>I know they export every IP address as H-135-X-X-X.lucent.com, but
>that's not 6 million.
>
>--
>Henning Schulzrinne http://www.cs.columbia.edu/~hgs
>
-- Christian Huitema
