NSX-V is VMware’s network virtualization platform that is completely integrated with vSphere. The NSX-V Firewall and the Service Composer are key features of the NSX-V Manager. The NSX-V firewall is a logical firewall that allows you to attach network and security services to the virtual machines, and the Service Composer allows you to group virtual machines and create policy to redirect traffic to the VM-Series firewall (called the Palo Alto Networks NGFW service on the NSX-V Manager).