6.5.1

Table Of Contents
When enabled, the model that Network I/O Control uses to handle bandwidth allocation for system traffic
and virtual machine traffic is based on the Network I/O Control version that is active on the distributed
switch. See About vSphere Network I/O Control Version 3.
Bandwidth Allocation for System Trac
You can configure Network I/O Control to allocate certain amount of bandwidth for traffic generated by
vSphere Fault Tolerance, iSCSI storage, vSphere vMotion, and so on.
You can use Network I/O Control on a distributed switch to configure bandwidth allocation for the traffic
that is related to the main vSphere features:
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Management
n
Fault Tolerance
n
iSCSI
n
NFS
n
vSAN
n
vMotion
n
vSphere Replication
n
vSphere Data Protection Backup
n
Virtual machine
vCenter Server propagates the allocation from the distributed switch to each physical adapter on the
hosts that are connected to the switch.
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Bandwidth Allocation Parameters for System Traffic
By using several configuration parameters Network I/O Control allocates bandwidth to traffic from
basic vSphere system features.
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Example Bandwidth Reservation for System Traffic
The capacity of the physical adapters determines the bandwidth that you guarantee. According to
this capacity, you can guarantee minimum bandwidth to a system feature for its optimal operation.
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Configure Bandwidth Allocation for System Traffic
Assign bandwidth for host management, virtual machines, iSCSI storage, NFS storage, vSphere
vMotion, vSphere Fault Tolerance, vSAN, and vSphere Replication on the physical adapters that are
connected to a vSphere Distributed Switch.
Bandwidth Allocation Parameters for System Trac
By using several configuration parameters Network I/O Control allocates bandwidth to traffic from basic
vSphere system features.
vSphere Networking
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