6.5.1

Table Of Contents
Bandwidth Admission Control in vSphere HA
When a host fails or is isolated, vSphere HA powers on a virtual machine on another host in the cluster
according to the bandwidth reservation and teaming policy.
To use admission control in vSphere HA, perform the following tasks:
n
Allocate bandwidth for the virtual machine system traffic.
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Configure the bandwidth requirements of a virtual machine that is connected to the distributed switch.
For more information about vSphere HA provides failover based on the bandwidth demands of virtual
machines, see the vSphere Availability documentation.
Create a Network Resource Pool
Create network resource pools on a vSphere Distributed Switch to reserve bandwidth for a set of virtual
machines.
A network resource pool provides a reservation quota to virtual machines. The quota represents a portion
of the bandwidth that is reserved for virtual machine system traffic on the physical adapters connected to
the distributed switch. You can set aside bandwidth from the quota for the virtual machines that are
associated with the pool. The reservation from the network adapters of powered on VMs that are
associated with the pool must not exceed the quota of the pool. See About Allocating Bandwidth for
Virtual Machines.
Prerequisites
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Verify that vSphere Distributed Switch is version 6.0.0 and later.
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Verify that Network I/O Control on the switch is version 3.
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Verify that Network I/O Control is enabled. See Enable Network I/O Control on a vSphere Distributed
Switch.
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Verify that the virtual machine system traffic has a configured bandwidth reservation. See Configure
Bandwidth Allocation for System Traffic.
Procedure
1 In the vSphere Web Client, navigate to the distributed switch.
2 On the Configure tab, expand Resource Allocation.
3 Click Network resource pools.
4 Click the Add icon.
5 (Optional) Type a name and a description for the network resource pool.
vSphere Networking
VMware, Inc. 192