Chapter 4 Basic Networking with vNetwork Distributed Switches

3In the Select Source Network drop-down menu, select the virtual network to migrate from.

4 Select the virtual network to migrate to from the Select Destination Network drop-down menu.

5Click Show Virtual Machines.

Virtual machines associated with the virtual network you are migrating from are displayed in the Select Virtual Machines field.

6Select virtual machines to migrate to the destination virtual network, and click OK.

Connect an Individual Virtual Machine to a dvPort Group

Connect an individual virtual machine to a vNetwork Distributed Switch by modifying the virtual machine's NIC configuration.

Procedure

1 Log in to the vSphere Client and select the virtual machine from the inventory panel.

2On the Summary tab, click Edit Settings.

3On the Hardware tab, select the virtual network adapter.

4Select the dvPort group to migrate to from the Network Label drop-down menu, and click OK.

Network I/O Control

Network resource pools determine the priority that different network traffic types are given on a vDS.

When Network I/O Control is enabled, vDS traffic is divided into the following network resource pools: FT traffic, iSCSI traffic, vMotion traffic, management traffic, NFS traffic, and virtual machine traffic. You can control the priority of the traffic from each of these network resource pools is given by setting the Physical adapter shares and Host limits for each network resource pool.

The Physical adapter shares assigned to a network resource pool determine the share of the total available bandwidth guaranteed to the traffic associated with that network resource pool. The share of transmit bandwidth available to a network resource pool is determined by the network resource pool's shares and what other network resource pools are actively transmitting. For example, if you set your FT traffic and iSCSI traffic resource pools to 100 shares, while each of the other resource pools is set to 50 shares, the FT traffic and iSCSI traffic resource pools each receive 25% of the available bandwidth. The remaining resource pools each receive 12.5% of the available bandwidth. These reservations apply only when the physical adapter is saturated.

NOTE The iSCSI traffic resource pool shares do not apply to iSCSI traffic on a dependent hardware iSCSI adapter.

The Host limit of a network resource pool is the upper limit of bandwidth that the network resource pool can use.

Enable Network I/O Control on a vDS

Enable network resource management to use network resource pools to prioritize network traffic by type.

Prerequisites

Verify that your datacenter has at least one vNetwork Distributed Switch version 4.1.

Procedure

1 In the vSphere Client, select the Networking inventory view and select the vNetwork Distributed Switch.

2On the Resource Allocation tab, click Properties.

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ESX Configuration Guide

3Select Enable network resource management on this vDS, and click OK.

Edit Network Resource Pool Settings

You can change network resource pool settings such as allocated shares and limits for the resource pool for each network resource pool.

Procedure

1 In the vSphere Client, select the Networking inventory view and select the vNetwork Distributed Switch. 2 On the Resource Allocation tab, right-click the network resource pool to edit, and select Edit Settings.

3Select the Physical adapter shares for the network resource pool.

Option	Description
Custom	Enter a specific number of shares, from 1 to 100, for this network resource
	pool.
High	Sets the shares for this resource pool to 100.
Normal	Sets the shares for this resource pool to 50.
Low	Sets the shares for this resource pool to 25.

4 Set the Host limit for the network resource pool in megabits per second or select Unlimited.

5Click OK.

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