Owner`s manual

NetworkingBestPracticesforVMwareInfrastructure3onDellPowerEdgeBladeServers
• High iSCSI SAN Bandwidth: In this configuration two I/O modules are dedicated to the LAN and four
I/O modules are dedicated to the iSCSI SAN. This configuration is useful for environments which have
high back end SAN requirements such as database environments and low LAN bandwidth requirements.
• Isolated Fabric: Certain environments require physically isolated network of certain class of virtual
machines (such as credit card transactions). To accommodate those virtual machines, we can dedicate two
redundant I/O modules. The two additional switches are stacked together to form a third fault-tolerant
logical fabric.
The following sections describe the best practices to configure the LAN and iSCSI SAN network. The high LAN
bandwidth configuration is used as an example for illustrations.
3.3 LocalAreaNetwork(LAN)
The LAN traffic includes the traffic generated from Virtual Machines and ESX Management VMotion. This section
provides the best practices to configure LAN including traffic isolation using VLANs, load balancing, and external
connectivity using uplinks. Based on Table 2
, the I/O modules are dedicated to the LAN.
All the I/O Modules are stacked together to create single Virtual Switch to further simplify the deployment,
management, and increase the load balancing capabilities of the solution.
Figure4:VirtualSwitchforLANonHalfHeightBladeServers
Figure5:VirtualSwitchforLANonFullHeightBladeServers
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