Hi all,
As you (hopefully) know, as of 1-1-2010, the RIRs will only be giving out 32-bit AS numbers. I'm writing an article for Ars Technica about this, and I was wondering about the perspective of network operators who may be faced with customers with a 32-bit AS number in the near future, and how the vendor support for 32-bit AS numbers is working out.
If you send me info in private mail, let me know your title/affiliation and whether I can quote you or not.
Iljitsch
Hi Iljitsch-
This statement isnt entirely correct. Im not sure if this is just a word smithing error in your email or if the management of this issue in the ARIN region isnt well known. I can only address the ARIN region but in that region if there is a 16 bit ASN in the free pool it will be given out before a 32 bit one. They are going to manage the ASN free pool by lower bit number out first. Granted if zero 16 bit ASN's are in the pool then the only thing going out at the time would be a 32 bit ASN. However, I just wanted to clarify for the ARIN region that 16 bit ASN assignments will not be halted. If they exist in the free pool they will be used.
Cheers!
Marla Azinger
Frontier Communications
Chris Malayter and I gave a presentation at NANOG45 earlier this year that
touches on some of the operational issues.
http://www.nanog.org/meetings/nanog45/presentations/Tuesday/Hankins_4byteASN_N45.pdf
We also started a Wiki with content based on the presentation that has
more updated information, including a current list of vendor support.
If you see a vendor missing, let us know and we can update the list.
Or better yet, create an account and add some content yourself :-).
http://as4.cluepon.net/index.php/Main_Page
Greg
Greg Hankins wrote:
We also started a Wiki with content based on the presentation that has
more updated information, including a current list of vendor support.
If you see a vendor missing, let us know and we can update the list.
Or better yet, create an account and add some content yourself :-).
While it's good to see support _finally_ in 2.2SX, I still don't see it
in 12.2SR (for rsp720). It's almost like Cisco has no idea how
many of these things are actually used on the Internet.
- Kevin
One can use the 23456 method in the interim, but I'd rather see everyone deploy 4-byte code. There have already been cases already of people putting 23456 in an as4_path inappropriately.
- Jared
While it's good to see support _finally_ in 2.2SX, I still don't see it
in 12.2SR (for rsp720). It's almost like Cisco has no idea how
many of these things are actually used on the Internet.
This is actually our issue as well. Our backbone runs primarily RSP720's
(with some Sup720's for good measure).
Support in 12.2SRx would be much appreciated if anyone from Cisco product is
listening.
Regards,
Randy
We are running into the same issues regarding 12.0 train for 12008 GSR
w/PRP-2's. Even though there are IOS's that have a "fixed" 4 Byte ASN
code...it has other bugs in NSF-SSO that we use here extensively. So
hence the reason we are waiting to upgrade.
Larry May
Network Services
n>Frame
888-223-8633
Or, more plausibly, they know exactly how many there are out there, and how
much they'd be able to make if everyone were forced to upgrade.
- Matt
The 12.2SRE for RSP720 on 7600 is going to be available shortly and
it will support 4B ASNs. It was communicated a number of times on
cisco-nsp@ for those who subscribe it and did care.
But I see that conspiracy theory looks nicer.
Even if i guess everybody is aware this is thankfully coming at some
stage, and i personally find the "shortly" definition late 2009 a bit
disappointing, i find the point being another:
In late 2006 it was more or less monumentally announced that the
paths of the "switch" and the "router" were to get separate: the
6500 and >= SXH releases on one side, the 7600 and >= SRA releases
on the other.
Then i see 32-bit ASNs being kindly implemented on the "switch"
first, in SXI - with SRD for the "router" being released roughly
in parallel; and one can amuse himself by reading issues people
stumble upon with SXI.
OK, a fuck-up on the way - it can happen:
http://www.cisco.com/warp/public/707/cisco-sa-20090729-bgp.shtml
And finally, yes, 32-bit ASNs for the "router" will come: by the
end of this year and on a new release: SRE. Which, re-phrased from
an operator point of view, essentially means: a candidate release
for a production deployment is not less than another 1 year away.
And frankly pages like the one below, with no mention of plans for
the 6500/7600 platforms whatsoever, are not encouraging at all:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6554/ps6599/data_sheet_C78-521821.html
Cheers,
Paolo