Cisco Nexus 1000V Podręcznik wdrażania - Strona 17
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requirements of the data center, Cisco NX-OS provides a robust and comprehensive feature set that can meet the
Ethernet and storage networking requirements of present and future data centers.
With a command-line interface (CLI) like that of Cisco IOS
implementations of relevant networking standards as well as a variety of true data center-class Cisco innovations.
Virtual Supervisor Module
The VSM provides the management and control plane functions for the Cisco Nexus 1000V Switches. Much like a
supervisor module in a Cisco Nexus 7000 Series Switch, the VSM provides the switch control and management
plane to the network administrator, coordinating configuration and functions across VEMs.
Unlike a traditional Cisco switch, in which the management plane is integrated into the hardware, on the Cisco
Nexus 1000V the VSM is deployed either as a virtual machine on a Microsoft Hyper-V server or as a virtual service
blade (VSB) on the Cisco Nexus 1010 or 1110 appliance (Figure 15).
Figure 15.
A high-availability deployment model of Cisco Nexus 1000V is usually recommended. Two VSMs are deployed in
an active-standby configuration, with the first VSM functioning in the primary role and the other VSM functioning in
a secondary role. If the primary VSM fails, the secondary VSM takes over.
Note that unlike in cross-bar-based modular switching platforms, the VSM is not in the data path. General data
packets are not forwarded to the VSM to be processed, but are switched by the VEM directly. Hence, any
disruption in VSM-to-VEM communication does not affect virtual machine traffic.
When the Cisco Nexus 1000V VSM is deployed on a Microsoft Hyper-V server, two installation options are
available: automated installation using the installer application, and manual installation using the VSM virtual
machine template on Microsoft SCVMM. When the VSM is deployed on the Cisco Nexus 1010 or 1110 device, the
administrator must manually install the VSM VSB. For additional information about installation, please refer to the
appropriate installation guides.
A VSM virtual machine must meet the following hardware requirements for the VSM to function correctly:
4 GB of virtual RAM (VRAM)
●
4 GB of hard disk space
●
Three synthetic network adapters
●
When the VSM virtual machine is deployed using the installer application or the VSM virtual machine template for
Microsoft SCVMM, the requirements described in the following sections are correctly enforced.
VSM Interfaces
The VSM is a virtual machine that requires three virtual network interface cards (vNICs). Each vNIC has a specific
function, and all are fundamental to the operation of the Cisco Nexus 1000V. To define the VSM virtual machine
properties, the vNICs require the synthetic network adapter.
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
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®
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