THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Introduction
TBDNetwork throttling is the process of controlling the network access and bandwidth usage based on certain rules. CloudStack controls this behavior by setting network throttling parameter set on VM's nic(s). This parameter is defined as the default data transfer rate in Mbps (Megabits Per Second).
How to configure network throttling in CloudStack
Network throttling rate parameter can be configured in:
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If the value is set to NULL in service/network offerings, it means that we should take the rate from the Global Configuration (network.throttling.rate - used by network offering, vm.network.throttling.rate - used by service offering)
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Network throttling
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on different types of CS Virtual Machines
On the hypervisor side, network throttling is begin set on a VM's NIC level. Implementation depends on the hypervisor. For example, on Xen its set per VM's vif; on vmWare - port group is configured on vSwitch, and the group gets assigned to the vm.
Configuring throttling on per VM's nic basis:
- UserVm can UserVm must have 1 Default network and 0-n additional networks (optional). For the default network VM's nic, we take network throttling rate from the corresponding Service Offering, for all additional networks - from the corresponding Network Offerings.
- For the VR Guest and Public networks we take network throttling from the corresponding Guest Virtual networkOffering.
- For Storage/Control/Management networks used by nics on SSVM/CPVM/VR and Public network used by SSVM/CPVM, we take the throttling rate from the corresponding System Network Offerings.
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