VMware VIEW COMPOSER 2.5 - ARCHITECTURE Manuale Utente Scaricare il pdf (Pagina 29)

EMC Infrastructure for Virtual Desktops Enabled by EMC VNX, VMware vSphere 4.1,

VMware View 4.5, and VMware View Composer 2.5

DHCP Server

The DHCP Server provides the IP address, DNS Server name, gateway address, and other

information to the virtual desktops. In this solution, we enabled the DHCP role on the domain

controller.

Network design

Overview

This section describes the network design used in this solution and contains the following

topics:

Considerations

VNX for file network configuration

Enterprise switch configuration

Fibre Channel network configuration

Considerations

Physical design considerations

EMC recommends that switches support gigabit Ethernet (GbE) connections and Link

Aggregation Control Protocol (LACP), and the ports on switches support copper-based media.

Logical design considerations

This validated solution uses virtual local area networks (VLANs) to segregate network traffic of

various types to improve throughput, manageability, application separation, high availability,

and security.

The IP scheme for the virtual desktop network must be designed so that there are enough IP

addresses in one or more subnets for the DHCP Server to assign them to each virtual desktop.

Link aggregation

VNX platforms provide network high availability or redundancy by using link aggregation. This

is one of the methods used to address the problem of link or switch failure.

Link aggregation is a high-availability feature that enables multiple active Ethernet

connections to appear as a single link with a single MAC address and potentially multiple IP

addresses.

In this solution, LACP is configured on VNX, which combines eight GbE ports into a single

virtual device. If a link is lost in the Ethernet port, the link fails over to another port. All

network traffic is distributed across the active links. Figure 10 shows the LACP configuration

of the Data Mover ports on the Ethernet switch.

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VMware VIEW COMPOSER 2.5 - ARCHITECTURE Manuale Utente Pagina 29