VMware VSPHERE CLIENT 4.0 - UPGRADE GUIDE UPDATE 1 Manuel d'utilisateur Page 45

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Section 4 Installation and Configuration Create Virtual Switches
3BSE056141-510 F 45
Figure 18 shows an example of two virtual switches plant network 1 (PN1) and a
control network 1 for area 20 (CN1 A20) to which different VMs are connected.
A virtual switch can be bridged to a physical network adapter of the VMware
ESX(i) server. This is shown in Figure 18 by the dotted lines. The VMware ESX(i)
server itself is connected to the physical plant and control networks via these
physical adapters. By doing so, virtual switches provide a means for connecting
virtual 800xA server nodes to the physical system networks.
From VMware ESX(i) version 4.0, each VM can have a maximum of ten virtual
network adapters. Therefore, a VM can be connected to a maximum of ten virtual
switches. In the example of Figure 18, the virtual CS ID1001CS1A is connected to
the plant network PN1 and to the control network CN1 A20. In the same manner,
create a separate virtual switch for each physical plant or control network to which
virtual 800xA server nodes require a connection. It is good practice to name a
virtual switch like the physical network it is bridged to (for example, PN1 for the
virtual switch bridged to the Physical PN1 as shown in Figure 18). For network
redundancy, create a second virtual switch (for example, named PN2).
Perform the following to create a virtual switch:
Figure 18. Virtual Network Configuration
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