4 byte ASNs through OpenBGPd to old Cisco IOS

Richard Irving rirving at antient.org
Wed Sep 23 21:47:24 UTC 2015


FWIW, I have single digit NANOG shirts in my closet...
of course, I couldn't /*fit* into them/... anymore.

It has been almos_t_ 20 years.....

Time flies.... eh ?

Seems like just yesterday Bill, John, I and /*Moses*/ were all having 
lunch in Denver.

  ;-)

On 09/23/2015 05:20 PM, Mike Hammett wrote:
> Fearing you might be on here, I tried to be fairly non-offensive in my 
> post.  ;-)
>
>
>
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
>
> ------------------------------------------------------------------------
> *From: *"Richard Irving" <rirving at antient.org>
> *To: *"Simon Lockhart" <simon at slimey.org>, "Mike Hammett" 
> <nanog at ics-il.net>
> *Cc: *"NANOG" <nanog at nanog.org>
> *Sent: *Wednesday, September 23, 2015 4:19:23 PM
> *Subject: *Re: 4 byte ASNs through OpenBGPd to old Cisco IOS
>
    Typo.
> They did, and it *has* now formed peering with the RSD.
>
> Thanks!
>
> 12.4.(24)T is the first version from that IOS train that natively
> supports 4 byte ASN's.
>
> We can upgrade at a more convenient time and date.
>
> :-)
>
> On 09/23/2015 05:04 PM, Simon Lockhart wrote:
> > On Wed Sep 23, 2015 at 03:37:31PM -0500, Mike Hammett wrote:
> >> Do any of you have any useful input other than they need to upgrade 
> their IOS
> >> to something newer than 4.5 years old?
> > I recently went through a very similar issue, and was convinced it 
> was related
> > to 32 bit ASNs.
> >
> > Are they seeing this error?
> > Sep 1 08:40:41.506 UTC: %BGP-3-NOTIFICATION: sent to neighbor 
> xxx.xxx.xxx.xxx 3/11 (invalid or corrupt AS path) 11 bytes 40020802 
> 033C3424 580097
> >
> > If so, have they configured "no bgp enforce-first-as" in their BGP 
> router
> > config?
> >
> > Simon
>
>




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