Information About Modules
Cisco Nexus 1000V manages a data center defined by a VirtualCenter. Each server in the data center is represented as a module and can be managed as if it were a module in a physical Cisco switch.
The Cisco Nexus 1000V implementation has 2 parts:
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Virtual supervisor module (VSM) - This is the control software of the Cisco Nexus 1000V distributed virtual switch. It runs on a virtual machine (VM) and is based on Cisco NX-OS software.
•Virtual Ethernet module (VEM) - This is the part of Cisco Nexus 1000V that actually switches data traffic. It runs on a VMware ESX 4.0 host. Several VEMs are controlled by one VSM. All the VEMs that form a switch domain should be in the same virtual Data Center as defined by VMware VirtualCenter.