# Networks
All Networks notes →What is Istio
CNCF-graduated (July 2023) service mesh — sidecar model plus the newer sidecar-less ambient mode (stable since 1.24), now extending into AI traffic via the Gateway API Inference Extension and 2026's Ambient Multicluster beta.
tech networking service-mesh kubernetes cncf
Aug 2, 2026
What is Envoy
CNCF-graduated L7 proxy built at Lyft — the de facto data plane for service mesh (Istio, Linkerd's predecessor lineage) — now extending into AI traffic via Envoy AI Gateway, which reached v1.0 with a native MCP Gateway in 2026.
tech networking service-mesh observability cncf
Jul 9, 2026