Re: 4 byte ASNs through OpenBGPd to old Cisco IOS

[Richard Irving <rirving () antient org>]

They did, and it 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