NSX Architecture component -
Networking has always been the backbone of the IT infrastructure. Traditionally, networks were hardware-driven, relying on physical switches, routers, and firewalls. But with the rise of cloud and virtualization, enterprises needed software-defined networking (SDN).
VMware NSX is the virtualize the network and security platform for the Software Defined Datacentre. It allows you to create, manage, and secure entire networks in software, independent of the underlying hardware.
NSX abstracts physical networks into logical switches, routers, firewalls, and load balancers.
- NSX Manager
- The central control plane.
- Provides APIs, UI, and integration with vCenter.
- Transport Nodes
- ESXi hosts or KVM nodes that run NSX VIBs/agents.
- Handle overlay traffic using Geneve encapsulation.
- Logical Switches (Segments)
- Virtual Layer 2 networks for VMs.
- Replace VLAN dependency with scalable overlays.
- Tier-0 & Tier-1 Gateways
- Tier-0: Connects to physical routers (north-south traffic).
- Tier-1: Connects workloads to Tier-0 (east-west traffic).
- Distributed Firewall (DFW)
- Security at the hypervisor level.
- Enforces micro segmentation policies per VM.
Tags
NSX