Splits the bandwidth of a vSphere Distributed Switch's uplinks between VM traffic and the various system traffic types, using reservations, limits and shares. Standard switches lack this capability.
Also called NIOC.
Read more: Broadcom TechDocs
In the Ultra Transcenders books
Each book explains Network I/O Control in context, with comparison tables and the common traps.
Terms in this definition
- VDS
Virtual switch defined once in vCenter and pushed out to each member host. NSX runs on top of it on VCF host transport nodes.
- Chat message roles
Labels on chat messages: instructions go under system, the person's input under user, the model's previous answers under assistant, and results returned by a called tool under tool (or function).
- Shares
A relative weighting for dividing a contended resource such as memory, CPU, network bandwidth or disk I/O: double the shares earns double the entitlement. Reservations, by contrast, are guarantees and limits are ceilings.
- Standard deployment type
A Foundry deployment type billed per token that keeps processing of prompts and responses inside the Azure geography of the resource, meeting data residency needs at lower volumes.
- Capability
Something that a person, organisation or system is able to do.
Related terms
- Industrial vSwitch
Designed for real-time industrial traffic, this vSphere Distributed Switch 9.0.0 mode can only be chosen when creating a switch, and it turns off health check, IPFIX, port mirroring and Network I/O Control, among others.
- Network Offloads Compatibility
Pairing a vSphere Distributed Switch with a DPU (NVIDIA BlueField or Pensando) via this setting moves networking work onto the DPU. Once selected, Network I/O Control is turned off, and network resource pools, traffic filtering and traffic shaping cannot be used.
- network resource pool
Within Network I/O Control, a slice of the switch-wide bandwidth reserved for VM traffic, which is then divided among whichever distributed port groups are attached to it.
- Provisioning traffic
Traffic generated when VMs are cloned, cold-migrated or have snapshots migrated, NFC transfers included, treated by the VMkernel as its own system traffic type. Since vSphere 9.0, Network I/O Control can set aside bandwidth for it so it does not crowd out management traffic.