Key features
- OVS data plane for mature, hardware-accelerated APAC packet processing
- ClusterNetworkPolicy: cluster-wide tiered policy with APAC priority ordering
- Antrea Network Policy: namespace-scoped policies with APAC richer selectors
- Traceflow: interactive APAC packet-level network policy debugging
- Flow export: IPFIX-based APAC traffic visibility to monitoring platforms
- Native VMware NSX integration for APAC enterprise network management
Best for
- APAC VMware-centric enterprise environments deploying Kubernetes who want CNI with native NSX integration, tiered network policy for multi-tenant APAC clusters, and interactive network debugging.
Limitations to know
- ! Smaller APAC community than Calico and Cilium for third-party integrations
- ! OVS adds complexity for APAC network engineers unfamiliar with Open vSwitch
- ! VMware/Broadcom stewardship creates uncertainty for APAC long-term roadmap
About Antrea
Antrea is an open-source Kubernetes CNI plugin from VMware (now Broadcom) built on Open vSwitch (OVS), designed for APAC enterprise environments that need a full-featured Kubernetes networking solution with tight VMware ecosystem integration. APAC platform teams use Antrea for Kubernetes pod networking with ClusterNetworkPolicy — Antrea's extension of standard Kubernetes NetworkPolicy that supports cluster-scope rules, tiered policy priority, and APAC multi-namespace policy application without duplicating rules per namespace.
Antrea's Antrea Network Policy (ANP) and ClusterNetworkPolicy (ACNP) resources enable APAC platform administrators to define cluster-wide network governance rules that take precedence over developer-defined namespace policies — separating APAC platform-level security baseline rules from APAC application-level access control. This tiered policy model is particularly valuable for APAC multi-tenant clusters where different teams need different isolation levels.
Antrea's Traceflow feature provides interactive APAC network troubleshooting: APAC platform engineers can send a diagnostic packet between any two APAC pods and trace its exact path through OVS datapath, identifying which network policy rules dropped or allowed the packet — dramatically reducing APAC network policy debugging time compared to trial-and-error rule modification.
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