H3C Technologies H3C Intelligent Management Center - Manual (Page 9)

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1 VCM overview
VAN Connection Manager (VCM) is an IMC service component developed based on the 802.1Qbg
Edge Virtual Bridging (EVB) standard.
VCM acts as the VSI (Virtual Station Interface) Manager in the EVB architecture. It manages VM traffic
and VSI Types to implement automatic association between virtual machine (VM) lifecycle and network
policies.
Features
VCM provides the following features:
• Support for the 802.1Qbg standard.
• Centralized VSI Type management.
• Automatic association between VM lifecycle and network policies.
• Installation of plug-ins that enables server administrators to manage connections from vManager,
which separates server management from network management.
NOTE:
In VCM, vManager is a general name for virtual management software in IMC such as vCenter and
VMM.
Basic concepts
The following concepts are used in VCM:
• Connection—A vNIC-to-VSI Type version binding. When a vNIC accesses the network from a new
location, the VSI Type version must be migrated on the corresponding switch.
• Edge switch—Switch that is directly connected a physical server where a VM resides. VCM
deploys VSI Type settings to the edge switch to manage VM traffic.
• Network—A management facility of VCM, with which you can assign VLANs for transferring the
traffic between VMs and clients, as well as assign the VSI types for controlling the traffic between
VMs and clients. In addition, with network management, you can authorize one or more operators
or operator groups to manage the VSI types assigned to the network.
• VSI Type—Virtual Station Interface Type. A profile that contains a set of network configurations for
binding to a vNIC of a VM, including bandwidth control, access control, and access priority
settings.
Support for 802.1Qbg solutions
VCM supports all 802.1Qbg solutions: VEB, VEPA, and Multichannel. Because VCM operates in the
same way in the VEPA and Multichannel solutions, this document refers to the two solutions collectively
as the EVB solution.