D-Link DES-3528 Product Manual - Page 154
QoS, 1p Settings, Bandwidth Control, Traffic Control Settings, HOL Blocking Prevention
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xStack® DES-3528/DES-3552 Series Layer 2 Stackable Fast Ethernet Managed Switch Web UI Reference Guide Chapter 6 802.1p Settings Bandwidth Control Traffic Control Settings DSCP HOL Blocking Prevention Scheduling Settings SRED QoS The Switch supports 802.1p priority queuing Quality of Service. The following section discusses the implementation of QoS (Quality of Service) and benefits of using 802.1p priority queuing. Advantages of QoS QoS is an implementation of the IEEE 802.1p standard that allows network administrators a method of reserving bandwidth for important functions that require a large bandwidth or have a high priority, such as VoIP (voice-over Internet Protocol), web browsing applications, file server applications or video conferencing. Not only can a larger bandwidth be created, but other less critical traffic can be limited, so excessive bandwidth can be saved. The Switch has separate hardware queues on every physical port to which packets from various applications can be mapped to, and, in turn prioritized. View the following map to see how the Switch implements basic 802.1p priority queuing. Figure 6-1 Mapping QoS on the Switch 145