Hey, On Thu, 28 Mar 2024 at 17:49, Peter Phaal <peter.ph...@gmail.com> wrote:
> sFlow was mentioned because I believe Brian's routers support the feature and > may well export the as-path data directly via sFlow (I am not aware that it > is a feature widely supported in vendor NetFlow/IPFIX implementations?). Exporting AS information is wire-format agnostic feature, if it's supported or not, it can equally be injected into sFlow, NetflowV5 (src and dst only), NetflowV9 and IPFIX. The cost is that you need to program in FIB entries the information, so that the information becomes available at look-up time for record creation. In OP's case (IOS-XR) this means enabling 'attribute-download' for BGP, and I believe IOS-XR will never download any other asn but src and dst, therefore full information cannot be injected into any emitted wire-format. -- ++ytti
