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Proposed change to AS Numbers

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  • Date: Fri, 17 Nov 2000 12:17:54 -0000

For information.

Whilst there has been much work done for IPv6 to establish a new protocol
which is less likely to run out of number space, the IETF are now working on
updating BGP to increase the possible number of Autonomous Systems.

From the RIPE 37 meeting, there were a couple of statistics people who
weren't present should be aware of;

Globally 51% of IPv4 address space is allocated, of which 61.8% is actually
advertised routes on the Internet (hence 38.9% is 'missing'). Globally AS
numbers 30% are assigned, of which 46% are not actually advertised on the
Internet. This was the situation in September 2000.

http://www.apnic.net/stats/bgp/ may be of further interest.

Adrian F Pauling
AFP1-RIPE : uk.btent
BT Business Services - Information Systems Engineering 
Tel: +44 1926 851992
Mob: +44 7802 904877
http://www.bt.com


-----Original Message-----
From: Philip Smith [
] Sent: 16 November 2000 19:55 To: apops@localhost Subject: [apops] Fwd: I-D ACTION:draft-chen-as4bytes-00.txt Given the current growth in ASN assignments around the globe, this is appropriate reading for everyone in the region. philip -- >To: IETF-Announce:; >From: Internet-Drafts@localhost >Reply-to: Internet-Drafts@localhost >Subject: I-D ACTION:draft-chen-as4bytes-00.txt >Date: Thu, 16 Nov 2000 06:27:03 -0500 >Sender: nsyracus@localhost > >A New Internet-Draft is available from the on-line Internet-Drafts >directories. > > > Title : BGP support for four-octet AS number space > Author(s) : E. Chen, Y. Rekhter > Filename : draft-chen-as4bytes-00.txt > Pages : 4 > Date : 15-Nov-00 > >Currently the Autonomous System number is encoded in BGP as a two- >octets field. This document describes extentions to BGP to carry the >Autonomous System number as a four-octets field. > >A URL for this Internet-Draft is: >http://www.ietf.org/internet-drafts/draft-chen-as4bytes-00.txt > >Internet-Drafts are also available by anonymous FTP. Login with the username >"anonymous" and a password of your e-mail address. After logging in, >type "cd internet-drafts" and then > "get draft-chen-as4bytes-00.txt". > >A list of Internet-Drafts directories can be found in >http://www.ietf.org/shadow.html >or ftp://ftp.ietf.org/ietf/1shadow-sites.txt > > >Internet-Drafts can also be obtained by e-mail. > >Send a message to: > mailserv@localhost. >In the body type: > "FILE /internet-drafts/draft-chen-as4bytes-00.txt". > >NOTE: The mail server at ietf.org can return the document in > MIME-encoded form by using the "mpack" utility. To use this > feature, insert the command "ENCODING mime" before the "FILE" > command. To decode the response(s), you will need "munpack" or > a MIME-compliant mail reader. Different MIME-compliant mail readers > exhibit different behavior, especially when dealing with > "multipart" MIME messages (i.e. documents which have been split > up into multiple messages), so check your local documentation on > how to manipulate these messages. > > >Below is the data which will enable a MIME compliant mail reader >implementation to automatically retrieve the ASCII version of the >Internet-Draft. >Content-Type: text/plain >Content-ID: <20001115091521.I-D@localhost > >ENCODING mime >FILE /internet-drafts/draft-chen-as4bytes-00.txt > ><ftp://ftp.ietf.org/internet-drafts/draft-chen-as4bytes-00.txt> * APOPS: Asia Pacific Operations Forum * * To unsubscribe: send "unsubscribe" to apops-request@localhost *

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