This article explains the fundamentals of Container Network Interface (CNI), outlines common plugin implementations, and dives deep into Alibaba Cloud's Terway solution, detailing its elastic ENI support, Vethpair and ipvlan modes, resource management, scheduling, network policy integration, and future enhancements such as eBPF.
This article examines the Terway DataPath V2 mode in Alibaba Cloud Kubernetes, detailing its architecture, data‑plane forwarding paths, eBPF acceleration, and eight typical traffic scenarios across different ENI and node configurations, while providing practical command‑line examples and performance insights.
This article provides a deep technical walkthrough of Alibaba Cloud's Terway ENI‑Trunking mode, explaining its architecture, pod‑level networking resources, VLAN‑based traffic steering, security‑group handling, and ten concrete SOP scenarios that illustrate how data packets travel between pods, services, and external clients.
This article examines the performance limitations of Kubernetes pod, service, and network‑policy layers built on the kernel Netfilter framework, explores eBPF‑based alternatives such as tc‑ebpf and Cilium, describes a Terway‑with‑eBPF implementation, and presents benchmark results showing significant latency and scalability improvements.
The article analyzes a recurring Kubernetes node NotReady problem where restarting kubelet only restores readiness for three minutes, explains the underlying PLEG timeout mechanism, investigates unresponsive Terway CNI plugin behavior, and presents a netlink‑timeout fix to prevent the issue.
This article reviews the SIG Cloud‑Provider‑Alibaba webinar, explains Kubernetes container networking fundamentals, details Alibaba Cloud's high‑performance CNI implementation using Terway with exclusive and shared ENI modes, and shows how eBPF, AutoPath DNS and resource‑pooling improve scalability and latency.
