Re: 32 bits ASN on Cisco
This is the document I quoted in my first email. ok for 2500, 2600 they are EOL, but still out there.. but Gary says the software is too new to be used on prod, and you say there is no problem. So who is right? I see that 12.4(24)T has been released in Feb last year. Do people follow the router upgrades closely? What is the common sense? ----- Original Message ----- From: "Łukasz Bromirski" <lukasz@bromirski.net> To: nanog@nanog.org Sent: Sunday, 11 April, 2010 10:31:05 PM Subject: Re: 32 bits ASN on Cisco On 2010-04-11 12:15, Franck Martin wrote:
To come back, to your statement that says it is just supported on 7200, means you cannot use a 32bit ASN in production today on any hardware?
It doesn't mean anything like that. As the software is available for some time already, you can run 32bit ASN in production today, and actually people do that. Nothing fancy. For the list of software versions supporting 32 bit ASN please referer to this document: http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6554/ps6599/dat... But yes, you can't run it on 2500 and 2600 as they're for long time End of Life/Engineering/Support/Everything. -- "Everything will be okay in the end. | Łukasz Bromirski If it's not okay, it's not the end." | http://lukasz.bromirski.net
On 2010-04-11 13:15, Franck Martin wrote:
This is the document I quoted in my first email. ok for 2500, 2600 they are EOL, but still out there..
A lot of boxes is still out there, sure. Some of them can't be upgraded, and it is not a problem unique only for Cisco.
but Gary says the software is too new to be used on prod, and you say there is no problem.
I didn't say there's no problem with the software - depending on your network size, features, load and millions other characteristics, some of the software may be unusable, where others will say "it works for me". 7600 guys should follow 12.2SR track, so the 12.2(33)SRE and rebuils are natural way of going forward. ISR guys (access) are usually implementing a multiservice boxes, so need new features - and they appear in 15.0(1)M, as entire 12.4T line is going EoS/EoL soon. For the legacy platforms, like 1600, 1700, 2600, 3600, 3700 the last software that runs is 12.4(15)T and rebuilds - and while it's unfortunate they don't support 32 bit ASNs, they reached EoS status before the feature was implemented, so according to Cisco rules, no new features can appear in EoSed software, only fixes. In reality, you either test yourself if the software is OK for your network, or pay for such tests/audit. While the line 'trust your vendor' looks nice, people usually do test before deployment. So you may get thousands of different opinions what's working and what is not, but for such discussions it would be better to move to cisco-nsp@. -- "Everything will be okay in the end. | Łukasz Bromirski If it's not okay, it's not the end." | http://lukasz.bromirski.net
The reference to a IOS supporting 32-bit ASNs being too fresh was specific to the 7600 platform and the SRE software train. As of SRE1, for example, NetFlow v9 template still advertizes source and destination ASNs fields as 2 bytes long. Cheers, Paolo On Sun, Apr 11, 2010 at 11:15:57PM +1200, Franck Martin wrote:
This is the document I quoted in my first email.
ok for 2500, 2600 they are EOL, but still out there..
but Gary says the software is too new to be used on prod, and you say there is no problem. So who is right? I see that 12.4(24)T has been released in Feb last year. Do people follow the router upgrades closely? What is the common sense?
----- Original Message ----- From: "??ukasz Bromirski" <lukasz@bromirski.net> To: nanog@nanog.org Sent: Sunday, 11 April, 2010 10:31:05 PM Subject: Re: 32 bits ASN on Cisco
On 2010-04-11 12:15, Franck Martin wrote:
To come back, to your statement that says it is just supported on 7200, means you cannot use a 32bit ASN in production today on any hardware?
It doesn't mean anything like that.
As the software is available for some time already, you can run 32bit ASN in production today, and actually people do that. Nothing fancy.
For the list of software versions supporting 32 bit ASN please referer to this document: http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6554/ps6599/dat...
But yes, you can't run it on 2500 and 2600 as they're for long time End of Life/Engineering/Support/Everything.
-- "Everything will be okay in the end. | ??ukasz Bromirski If it's not okay, it's not the end." | http://lukasz.bromirski.net
participants (3)
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Franck Martin -
Paolo Lucente -
Łukasz Bromirski