Bandwidth Management
Organizations want to provide better service to a certain type of traffic when bandwidth is limited by, for example, an Internet Service Provider (ISP) connection. Instead of buying more bandwidth, organizations want to manage their existing bandwidth more efficiently.
Benefits
Business traffic can receive precedence over other types of traffic
Manage existing bandwidth more efficiently instead of buying additional bandwidth
Limit the bandwidth usage of bulk traffic such as backup
Give more bandwidth to important users
Provide for certain services that require QoS in order to work reliably (e.g., VoIP)
Co-operate with other QoS devices to achieve end-to-end QoS