[AusNOG] Your private ASs are showing

[Geoff Huston]

> On 11 Oct 2015, at 12:40 AM, Rick Carter <rickjcarter at gmail.com> wrote:
> 
> Some may be hitting a bug like we are at Vocus. From our TAC case, Cisco have filed bug CSCuh48975 where the BGP command "remove-private-as" is not removing the 4 byte private ASNs on IOS-XR. I'm not sure if it just impacts our version we are on or many others, that bug has been kept private by Cisco. We have been informed to expect a patch, but have not been given any firm timeframe. We will likely move this back to a private 2 byte ASN in the meantime.


Thanks Rick

It’s hard enough to try and work out whats real and what’s evil in routing without some of this additional noise added to the routing signal. Cisco have had years to clean up their 4 byte AS act, and it’s a genuine pity that they are so unresponsive, but allowing these private AS’s to leak out to the public space does not help either - thanks for looking into it!

regards,
    Geoff