Generally, three are two types of bandwidth throttling available on network equipment:
- Per-User Bandwidth Throttling: This limits the maximum amount of Internet bandwidth that each client device can consume
- Per-Subnet/VLAN Bandwidth Throttling: This limits the aggregate maximum amount of internet bandwidth that all client devices on the subnet / VLAN can consume at one time.
Unfortunately, setting the oversubscription ratio is an empirical exercise, and over time, the oversubscription ratio tends to decrease as more devices, each consuming more bandwidth, are connecting to your networks. In the pre-smartphone days, a 30:1 or even 40:1 was common for most wired / wireless networks.
Determining Appropriate Bandwidth Throttling Values
Of course, in reality complex networks are an Animal Farm (i.e. while all client devices are equal, some client devices are “more equal” than others). Thus, different classes of users will require different levels of service.