Adding a feature arc node e.g. to the device input feature arc would allow you to classify and (optionally) generate ipfix records [or whatever].
Depending on the size of the records involved, the ratio of classifier hits to classifier misses, the required PPS to avoid dropping traffic, number of threads, etc. you might be able to upload telemetry for nearly every (matching) packet. Because of the number and complexity of the internal APIs involved, it will take time to fabricate and test all of the moving parts. FWIW... Dave P.S. Integration with eBPF defeats the purpose of user-mode networking, and would likely reduce system throughput to the point where you would wish you hadn’t thought of it. Go ahead if you like but you’re on your own. From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of mauricio.solisjr via lists.fd.io Sent: Wednesday, April 22, 2020 7:47 AM To: vpp-dev@lists.fd.io Subject: [vpp-dev] VPP + iOAM + DPDK + eBPF and packet samples #vpp Hi, I'm wondering if FDio has the following capabilities, I've also added my current understanding of each: I'm working on obtaining telemetry information for a certain type of traffic, but due to computation power, we'd like to add telemetry to every 1000th packet. I understand that we can add telemetry for traffic based on traffic class, flow label, source/destination addr, or protocol. I believe you can also delete classifications at runtime, so I think one way this can be done is if we add a classifying table + session for a given traffic flow and remove it every so often. Another idea is, if it possible to move classification to an eBPF before getting to the VPP. I don't think this is possible since vpp bypasses the kernel, but maybe it we can add our own hooks to vpp??? Does anyone have an example/tutorial for iOAM with IPv4 packets? I know IPv4 needs to be encapsulated, but I have not found any examples for iOAM + IPv4 + GRE Thanks,
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16143): https://lists.fd.io/g/vpp-dev/message/16143 Mute This Topic: https://lists.fd.io/mt/73193360/21656 Mute #vpp: https://lists.fd.io/mk?hashtag=vpp&subid=1480452 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
