Public Preview: Azure Virtual Network Manager mesh now supports 5,000 virtual networks

Azure Virtual Network Manager mesh connectivity is now in public preview, enabling you to group up to 5,000 virtual networks in supported regions. A mesh topology creates bi‑directional connectivity between every virtual network in a mesh connectivity configuration, so selected Virtual networks communicate directly, eliminating manual peerings, avoiding extra hops, and delivering low‑latency traffic flows under a unified control plane. 

A common scenario for mesh is to let spoke virtual networks in a hub‑and‑spoke topology talk to each other without traversing through the hub. This reduces latency by bypassing the hub router. You can still preserve security and oversight by implementing security admin rules in Azure Virtual Network Manager (evaluated before NSGs) or NSG rules per virtual network, and monitor all traffic with virtual network flow logs for comprehensive auditing and troubleshooting. 

Learn more.