Hi, there are various tools out there which show the prefix distribution among the peers/uplinks for given ASN. For example https://radar.qrator.net/as3333/graph#96311 or http://bgp.he.net/AS3333#_asinfo. As far as I know, those tools build the graphs mainly based on data from route servers. Am I correct that at best this data could give very rough estimation on ingress traffic for ASN as those graphs indicate announced prefixes? I mean for example if ASN 1 announces 1.1.0.0/16, 2.2.0.0/16 and 3.3.0.0/16 to ASN 2, but only 1.1.0.0/16 to ASN 3, then one could assume that more ingress data to ASN 1 goes over ASN 2. What about egress traffic? In general, are there ways to roughly estimate network traffic distribution for given ASN among its peers/uplinks? I would say it is not possible. thanks, Martin