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main topics today: UNH IOT Transition. Other possibilities: Comments on Containerized Benchmarking, Deepdive on eBPF XDP AF_XDP
Item | Desc | who | Notes/minutes |
UNH transition | All | Sridhar has started setup in the new testbed. Seems stable and going well. VPN is good stability. Need a few more days to get going (all the basic stuff needs to be setup.) Completing install of PROX and Trex. eBPF support varies from OS to OS: Different form Ubuntu 20.04 to 20.04 - strange - trying to create superset of library of eBPF support and deployment. Needed kernel rebuild in one system, but not in another - so need to re-build to to be safe or check in the kernel. All ACTIONthe details must be known so that the automation works. Sawyer Bergeron says that the booking has been extended to late May, 2023. ACTION: Need to determine the STABILITY of the current booking, which expired but still works. Mail to UNH. Notes on: Can automate the IP addrs assignments for all the traffic links - How? Can Config.YAML really work? or is Ansible better? | |
Student Volunteers | Federica | No news on Student Candidates. (from student forum) It would be to know the school deadline. Will not do an LFN internship this year. | |
Deepdive on eBPF XDP AF_XDP | Sridhar | Note from First step is to verify that a single L2 forwarder will work (Cillium's ability to use DPDK is in question) | |
Discussion: Contribution on Containerized network benchmarking in BMWG session IETF-115 | All | Notes on eBPF Acceleration Model Figure is not accurate - trying to cover too many scenarios. Need two figures, since eBPF can also be in user space. Statement that Cillium with DPDK forwarding app, and DPDK traffic gen testing is not possible. Cannot connect the parts in teh testbed. Comment about last slide: it's mostly the Rx queue that contributes to performance, Sridhar will send a version of the word file with his text corrections included. Invite Minh-Ngoc Tran to a future meeting, to check if our comments were adopted. Review with Minh-Ngoc Tran Draft: https://www.ietf.org/archive/id/draft-dcn-bmwg-containerized-infra-09.html Slides: Considerations for Benchmarking Network Performance in Containerized Infrastructure https://datatracker.ietf.org/doc/draft-dcn-bmwg-containerized-infra/ yangun@dcn.ssu.ac.kr Sirdhar will contact. mipearlska1307@dcn.ssu.ac.kr presented at IETF-115 Sridhar Rao Tested many similar scenarios - performance difference among with VM and without VM is negligible. Not really necessary to test. Minh needs to check this with colleagues Sridhar will share our teams results - part of Daniele's work. The reason people run VMs is for security reasons and resource isolation -WHEN Containers did not supply. Parameters section: Cannot use a CNI independent of the Networking model (SRIOV or user space determines this) Some Networking models listed are not relevant when performance is the priority. Are these even applicable when performance matters? maybe not. For example, their networking model includes Kernel space switching will perform poorly. Minh replies that ALL the Models are included. Need to categorize into good/bad perf. Minh agrees. Performance Impacts: Major example is Number of Cores, which is not included in the Draft. Please add this. Minh agrees. Section 3 clarify the use of Containers and Pods - used interchangeably now. need to clarify Section 3 Some generalizations about CNI are not correct - Some CNI do not use user namespace Figure 1 What is Container Engine? is it Container Run-time. 4.2 Some duplication on Container Network Plugin? Agree. Can use different CNI with same network Model - no difference. The SR-IOV networking model would make a big difference with other models, but CNI not so much. The Vswitch and the Networking model are closely tied together (Models with VPP are not possible with OVS, for example). Section 4.3 CNI does not create it's own switch functions Also, which of 5 networking models does Calico fall. Figures in Section 4.3. Normal Calico does not use eBPF Calico should fall in section 4.3.1 figure, but needs to be fixed. (remove "VSwitch") and add Kernel routing tables in the user space vswitch block. There was a Cillium eBPF scenario that was in the slides - this is not possible with the traffic gen and DPDK. | |
UNH transition | All | Given that our Pod terminated (time-out) is there any way to recover? Or better to start from scratch? Can automate the IP addrs assignments for all the traffic links - How? Can Config.YAML really work? or is Ansible better? | |
Testbed - IXIA support | Sridhar/Al | Tim Gresham asks for resolution on this. If we can get it, do we want it? No good without license! So, is a license still valid or available for update? THEN - need to ship and install in UNH, get working there - IXIA help to do this.
Trevor Cooper says connected and powered on, but we still might have a license issue. Need Pierre's help. this activity seems to have stalled ... Pod 19 also not accessible - Dan Xu. |
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(summary: items 5,6,and 7 lack the necessary automated address discovery feature, defer)
see Nile Release Schedule Nile Release Progress page M4 currently due on Dec 9, M5 due on Dec 16
1 | Update OS versions https://jiralf-anuket.anuketatlassian.ionet/browse/VINEPERF-673 | Tasks:
| Tasks 1, 3, and 4have been completed/merged. Not doing 2. DONE | |||
2 | Automate setting up eBPF-based CNIs - xdp, cilium, calico. https://jiralf-anuket.anuketatlassian.ionet/browse/VINEPERF-677 | setup - xdp, cilium, calico. | Patch submitted patch, will request review. | |||
3 | Improve the ViNePerf Build Stability https://jiralf-anuket.anuketatlassian.ionet/browse/VINEPERF-675 | Starting from the build to the 3 environments
| Testing in-progress: either run in OS or K8s - 2 and 3 are challenging and 3 is the priority. | |||
4 | eBPF Metrics Collection https://jiralf-anuket.anuketatlassian.ionet/browse/VINEPERF-674 | Task: Develop Tool to collect metrics from eBPF programs. | Existing tool, just running it with a script Skywalking from Apache skywalking-rover possible eBPF plugin in collectd - propose for barometer or KDDI - | |||
Tasks below are deferred from Moselle - likely Defer Again because container networking support is poor and requires significant work-arounds. | ||||||
5 | Epic-VINEPERF-652:Enhance XTesting-ViNePerf Integration | Moved to Next Release | depends on 7 | |||
6 | Task-VINEPERF-658:Enhance framework for XTesting-K8s Usecase | Partially done (reading results from output), Deployment tool. | 1 task remains | |||
7 | Task-VINEPERF-654:XTesting-ViNePerf Integration Enhancement - Kubernetes | Will not implement due to limitations with CNIs. Moved to Next release - if CNIs support this. | Need CNI to add flows automatically in Switches (Userspace-CNI, supports DPDK, OVS, VPP). Major impediment to integrate with X-Testing Sridhar will check with Xavier if ARP resolution is supported in Prox as a switch TBD | |||
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