vCloud Components: vCloud Networking and security
vCloud Networking and Security is responsible for deploying and managing VMware® vShield Edge devices as requested by vCloud Director:
Edge gateway and vApp network devices Connects to the vCenter Server system through the VMware vSphere® API for vShield
Edge deployment Manages configurations through
VMware VIX API
Virtual appliance

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Runs management interface
Aggregates usage data for chargeback
One vCloud Networking and Security
server per attached vCenter Server system
vShield Edge: Firewall and router device that
vShield Edge
provides network and security services Deployed automatically by vCloudDirector through vCloud Networking and Security Deployed to vSphere hosts as a virtual appliance.
vCloud Director uses vShield Edge appliances to secure multitenancy. vShield Edge also provides NAT, DHCP, firewall, port forwarding, and IP masquerading services. vCloud Director works with vCloud Networking and Security to deploy a vShield Edge device as part of the network creation process. These appliances run on vSphere hosts.
Each vCenter Server system is connected to a vCloud Networking and Security host. vCloud Networking and Security is a Linux-based virtual appliance that deploys and manages vShield Edge devices as requested by vCloud Director. vCloud Networking and Security also aggregates usage data for vCenter Chargeback.
vShield Edge appliances are deployed automatically by vCloud Director through vCloud Networking and Security as needed. vShield Edge appliances reside in the vCloud consumer resource clusters, not in the management cluster. vShield Edge appliances are placed in a system resource pool by vCloud Director and vCenter Server. For more information about the vShield Edge appliance and its functions.