Head-to-head · Container Networking Software
Calico Open Source vs Terway
Calico Open Source leads on 0 checks, Terway on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreCalico Open Source · 9.2/10
- Free planboth
- Most featuresCalico Open Source · 5 of 5
Calico Open Source scores higher on our rubric for container networking software: 9.2 against 6.3 out of 10; our editors rank them #2 and #26.
Calico Open Source is the better fit for free, full-featured Kubernetes networking. Terway is the better fit for alibaba Cloud VPC and ENI networking.
- Calico Open Source fits best
Free, full-featured Kubernetes networking
- Terway fits best
Alibaba Cloud VPC and ENI networking
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Side by side
| Feature | Calico Open Source 9.2/10 Visit ↗ | Terway 6.3/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.2 | 6.3 |
| Ranking | #2 in Container Networking Software | #26 in Container Networking Software |
| Best for | Free, full-featured Kubernetes networking | Alibaba Cloud VPC and ENI networking |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Cloud, Self-hosted |
| Platforms | Linux, Windows | Linux |
| Support | Community, Docs | Community, Docs |
| Built for | Small business, Mid-market, Enterprise | Mid-market, Enterprise |
| Features Calico Open Source 5/5 · Terway 4/5 | ||
| CNI plugin | ✓ | ✓ |
| Network policies | ✓ | ✓ |
| Egress control | ✓ | ✓ |
| Multi-cluster networking | ✓ | ✓ |
| Encryption in transit | ✓ (best) | Not checked yet |
| Specs | ||
| Supported platforms | Kubernetes, Linux, Windows, OpenStack, virtual machines, bare metal | Kubernetes ACK, Alibaba Cloud VPC/ENI, Alibaba Cloud Linux 3/4, ContainerOS, Ubuntu |
| Our review | ||
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| Cons |
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| Our verdict | Calico Open Source is an open-source container networking and security platform maintained by Tigera. It is designed for teams running Kubernetes or other CNI-compatible orchestrators that need networking, policy enforcement, encryption,… Read the review → |
Terway is an open-source Container Network Interface plugin for Alibaba Cloud Kubernetes Service (ACK). It assigns Alibaba Cloud VPC-native elastic network interface addresses to Pods and supports shared and exclusive ENI modes for Pod IP… Read the review → |
Strengths and trade-offs
Calico Open Source — where it wins
- Free and open source with CNI networking and policy enforcement
- Supports eBPF, nftables, iptables, Windows, and VPP data planes
- Adds WireGuard, cluster mesh, and Whisker traffic observability
Where it doesn't
- Its breadth may exceed the needs of simpler Kubernetes deployments
- Requires self-hosted operation across supported infrastructure
- Advanced capabilities can add architectural and operational complexity
Terway — where it wins
- Native VPC and ENI networking with shared or exclusive ENI modes
- Supports NetworkPolicy, dual-stack IPv4/IPv6, and eBPF acceleration
- Per-Pod IP, vSwitch, and security-group configuration with Trunk ENI
Where it doesn't
- Its strongest fit is limited to Alibaba Cloud ACK environments
- NetworkPolicy support applies to shared ENI mode, not exclusive ENI mode
- Alibaba Cloud infrastructure and ACK resources incur separate charges
- Calico Open Source9.2/10 · Free plan
A free, broad Kubernetes networking stack with policy, encryption, and multi-cluster support.
Visit CalicoFull verdict → - Terway6.3/10 · Free plan
A focused, free CNI for teams running Kubernetes workloads on Alibaba Cloud.
Visit TerwayFull verdict →
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- Calico Open Source vs Calico Enterprise
- Calico Open Source vs Isovalent Enterprise for Cilium
- Calico Open Source vs Amazon VPC CNI
All container networking software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update