Nexus 1000V components
N1KV consists of VSMs and VEMs. While VEMs are software elements that reside inside the hypervisor, running as a part of the VMware ESXi kernel. The VEM acts like a line card to VSM and provides packet forwarding and other functions for virtual machines. Whereas VSM is deployed as a virtual appliance and provides control to manage multiple VEMs and virtual machine traffic steering. Have a look at the following diagram for more details:
The highlighted components in the preceding diagram are explained in the following sections.
The Virtual Ethernet Module
The Virtual Ethernet Module (VEM) runs as a part of the VMware ESXi kernel. It uses the VMware vNetwork Distributed Switch (VDS) API to provide advanced networking capabilities to VMs.
The VEM provides advanced networking functions, such as QoS, security features, and monitoring features, by taking configuration information from the VSM.
The Virtual Supervisor Module
Multiple VEMs create a single logical switch layer to...
