Qos; Advantages Of Qos - D-Link xStack DES-3800 Series User Manual
Layer 3 stackable fast ethernet managed switch
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Also See for xStack DES-3800 Series:
- Cli manual (326 pages) ,
- User manual (391 pages) ,
- User manual (360 pages)
Table of Contents
QoS
Bandwidth Control
QoS Scheduling Mechanism
QoS Output Scheduling
802.1P Default Priority
802.1P User Priority
The DES-3800 Series 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 DES-3800 Series implements 802.1P priority queuing.
xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
Figure 9- 1. Mapping QoS on the Switch
Section 9
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Table of Contents
