Dear secretariat and all,
I share these concerns to which you properly mention.
[email protected] wrote:
> AS number change could affect Internet routing from 1 January 2009
> Manufacturers urged to upgrade routers and network management
> software to support the use of four-byte Autonomous System numbers
> by 1 January 2009.
> Regional Internet Registries (RIRs), including Asia Pacific Network
> Information Centre (APNIC), have warned that routers and network
> management software should be upgraded ahead of the increased
> distribution of four-byte (also known as 32-bit) Autonomous System (AS)
> AS numbers are a vital part of the Internet's core routing system, the
> Border Gateway Protocol (BGP). With existing two-byte AS numbers
> predicted to run out in early 2011, RIRs will issue four-byte AS numbers
> by default (unless otherwise specifically requested) beginning 1 January
> 2009, as the next phase of a transition from two- to four-byte numbers.
> Following a globally coordinated policy, RIRs began allocating four-byte
> AS numbers by request only in January 2007; January 2009 marks the
> transition to allocating four-byte AS numbers by default.
> Without timely support from vendors, network operators risk having
> routers and network administration systems that won't accept the
> expanded four-byte number format. As such, the RIRs urge operators to
> verify their vendors' routers will support four-byte AS numbers.
> Geoff Huston, Chief Scientist at APNIC, expressed severe concerns over
> failure to prepare for four-byte AS numbers: "AS numbers are often used
> to identify external relationships, set routing attributes, and manage
> traffic. Learning from our current experiences with IPv6 preparation
> issues, Internet engineers designed four-byte AS numbers to be backward
> compatible with much of the installed network infrastructure. But new
> entrants and networks that are expanding or merging will need new AS
> numbers and as of 1 January 2009 these will be, by default, four-byte AS
> numbers. If router software and support systems in critical parts of the
> Internet's infrastructure aren't upgraded by January, we'll encounter
> some significant network routing problems. We're extremely concerned
> that a lot of routers and network management software out there cannot
> and will not be able to recognize four-byte AS numbers".
> An Autonomous System (AS) is a collection of networks, or routers,
> administered as a group sharing a common set of routing policies, each
> defined with a unique number, or AS number. Massive Internet growth has
> depleted the existing pool of two-byte AS numbers (65,536 numbers in
> total). As a result, engineers have expanded the AS number space from
> two bytes to four-bytes, to include over 4 billion AS numbers. Some
> routers do not currently support the use of four-byte AS numbers.
> To help vendors understand what they need to do to provide four-byte AS
> number support and to help network operators find products that support
> four-byte AS numbers, APNIC has set up a special website at:
> Yours sincerely
> APNIC Secretariat
> Asia Pacific Network Information Centre (APNIC) Tel: +61 7 3858 3100
> PO Box 2131 Milton, QLD 4064 Australia Fax: +61 7 3858 3199
> Level 1, 33 Park Road, Milton, QLD http://www.apnic.net
> Apnic-announce mailing list
> [email protected]
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