[routing-wg]Idea about AS-usage on IXPs
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Volodymyr Yakovenko
vovik at dumpty.org
Sun Dec 3 22:09:20 CET 2006
On Fri, Dec 01, 2006 at 02:18:40PM +0100, Kurt Kayser wrote: >Hi Randy, > >Randy Bush wrote: >>>Is inter-IXP-traffic really typical/necessary? >> >>>from a router on IX A, i want a nice clean traceroute to a router on IX >>B, and only have access to that IX via my friend's network on IX A. > >If the router is not an IXP-owned router, each participating router is in a >"normal" AS. > >But I might be really wrong in order to save a couple of 2-Byte AS-numbers, >but somehow I have the feeling that 2-Byte space is out much faster that >anticipated. >So how far are we in globally reachable 4-Byte AS-numbers yet? (different >topic). According to RIPE-389 (http://www.ripe.net/docs/asn-assignment.html#19): 1.9 4-Byte AS Numbers RIPE NCC will assign 4-Byte AS Numbers according to the following timeline: * From 1 January 2007 the RIPE NCC will process applications that specifically request 4-byte only AS Numbers and assign such AS Numbers as requested by the applicant. In the absence of any specific request for a 4-byte only AS Number, a 2-byte only AS Number will be assigned by the RIPE NCC. * From 1 January 2009 the RIPE NCC will process applications that specifically request 2-byte only AS Numbers and assign such AS Numbers as requested by the applicant. In the absence of any specific request for a 2-byte only AS Number, a 4-byte only AS Number will be assigned by the RIPE NCC. * From 1 January 2010 the RIPE NCC will cease to make any distinction between 2-byte only AS Numbers and 4-byte only AS Numbers, and will operate AS Number assignments from an undifferentiated 4- byte AS Number allocation pool. Terminology "2-byte only AS Numbers" refers to AS Numbers in the range 0 - 65535 "4-byte only AS Numbers" refers to AS Numbers in the range 1.0 - 65535.65535 (decimal range 65,536 - 4,294,967,295) "4-byte AS Numbers" refers to AS Numbers in the range 0.0 - 65535.65535 (decimal range 0 - 4,294,967,295) -- Regards, Volodymyr.
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