Using 32 bit ASN numbers

Owen DeLong owen at delong.com
Fri Aug 29 17:08:39 CDT 2008


Marshal,

Since his question was specifically about I don't see the answer
in either of the places you referenced.... The calculator didn't
like a 32 bit ASN:

AS Number Out of Range

AS numbers are represented by 16 bits; 65535 maximum in decimal.

Back to the GLOP Calculator
Return to Shepfarm Multicast

shep at shepfarm.com



Owen


On Aug 29, 2008, at 1:58 PM, Marshall Eubanks wrote:

>
>
> On Aug 29, 2008, at 4:50 PM, Haven Hash wrote:
>
>> Concerning 32 bit AS numbers, are organizations which are granted  
>> 32 bit AS
>> numbers given any multicast address space?
>>
>> If so is it possible to figure out what this space is from the ASN  
>> ala GLOP
>> (233.ASN.ASN.x)?
>>
>
> Yes, and yes.
>
> The space they are given is the GLOP space !
>
> See
>
> http://www.multicasttech.com/faq/#GLOP
>
> and
>
> http://www.shepfarm.com/multicast/glop.html
>
> Regards
> Marshall
>
>> Thanks,
>>
>> Haven Hash
>>
>> On Fri, Aug 29, 2008 at 1:12 PM, Arie Vayner <ariev at vayner.net>  
>> wrote:
>>
>>> Pender,
>>>
>>> One small correction... For 7600, 12.2SR, the support would come  
>>> out in
>>> 12.2SRD
>>>
>>> Arie
>>>
>>> On Fri, Aug 29, 2008 at 6:44 PM, Pender, James <James.Pender at paetec.com
>>>> wrote:
>>>
>>>>
>>>> These are the dates I have for Cisco platforms:
>>>>
>>>> IOS XR 3.4 - September 2007
>>>> IOS 12.0(32)S11 - November 2008
>>>> IOS 12.2SRE - December 2008
>>>> IOS 12.5(1)T - April 2009
>>>>
>>>> -----Original Message-----
>>>> From: andy lam [mailto:anwalam at yahoo.com]
>>>> Sent: Friday, August 29, 2008 11:29 AM
>>>> To: nanog at merit.edu; Brian Raaen
>>>> Subject: Re: Using 32 bit ASN numbers
>>>>
>>>>
>>>> Cisco IOS XR Software Release 3.4.0 adds support for BGP  
>>>> Authentication
>>> Key
>>>> Chaining, BGP 4-Byte Autonomous System Number (ASN), and BGP Next  
>>>> Hop
>>>> tracking enhancements.
>>>>
>>>>
>>> http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.4/general/release/notes/reln_34.html#wp239046
>>>> BGP 4-Byte ASN-Increases the range of supported autonomous  
>>>> systems from 2
>>>> bytes to 4 bytes to scale with expected Internet growth.
>>>>
>>>> 12.2SR* is supposed to be in late 2008, but has not yet been  
>>>> announced
>>>> publicly.
>>>>
>>>>
>>>> Juniper it's in JUNOS 9.1 as farr as I can tell.
>>>>
>>>>
>>>> --- On Fri, 8/29/08, Brian Raaen <braaen at zcorum.com> wrote:
>>>>
>>>> From: Brian Raaen <braaen at zcorum.com>
>>>> Subject: Using 32 bit ASN numbers
>>>> To: nanog at merit.edu
>>>> Date: Friday, August 29, 2008, 11:04 AM
>>>>
>>>> I am doing some research for our company regarding 32 bit ASN  
>>>> numbers.  I
>>>> am
>>>> trying to locate information about vendor and service provider  
>>>> support.
>>> In
>>>> particular I have not been able to find what Cisco IOS image I  
>>>> would need
>>>> to
>>>> load on our router to support 32 bit ASN's.  I also want to know  
>>>> what
>>>> experience people have had with service provider support of 32  
>>>> bit ASN's
>>>>
>>>> --
>>>> Brian Raaen
>>>> Network Engineer
>>>> braaen at zcorum.com
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>




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