AS36040 Prefix Limits

Mike Hammett nanog at
Thu Oct 19 13:17:33 CST 2017

It is in conjunction with a route server. The filtering I meant would be that network A wants the IX to drop all advertisements to them from network B. Normally solved by network B putting a community on their routes to not advertise to network A, but network B doesn't want to do one-off configs. 

Mike Hammett 
Intelligent Computing Solutions 


----- Original Message -----

From: "Andy Davidson" <andy at> 
To: "Mike Hammett" <nanog at> 
Cc: "NANOG list" <nanog at> 
Sent: Thursday, October 19, 2017 1:20:08 AM 
Subject: Re: AS36040 Prefix Limits 

Hi, Mike 

On 18/10/2017, 18:39, Mike Hammett <nanog at> wrote: 

> I am looking for someone that can speak authoritatively regarding AS36040's 
> ability to change their own prefix limits, prefix filtering, etc. 
> My current contact is advising the IX to do the filtering for them, which 
> is not something IXes should be doing. 

Unless this is in conjunction with a multilateral peering session (“route-server”), when prefix-filtering is something that the IXP very much should be doing. 


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