D-Link DES-1218, DES1226 manual Priority Queues, Example of Priority Queue Assignments

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DES-1218/DES-1226 10/100/1000 Mbps Ethernet Switch User’s Guide

Priority Queues

This feature allows you to customize packet traffic handling to the particular needs of your network. Configure this setting for packets passing through the port, using IEEE 802.1p priority tagging. These settings are universal, that is, they are for all ports on the Switch. Four priority levels may be assigned with Queue 3 being the highest priority queue, and Queue 0 being the lowest priority queue.

Note: The settings you assign to the queues, numbers 0-7, represent the IEEE 802.1p priority tag number. Do not confuse these settings with port numbers.

The highest priority queue, Queue 3, should reserved for data in which latency can have adverse affects on the function of an application, such as video or audio data, where latency can produce distorted sounds and images. Packets in the lower priority queues will be processed with less urgency. See the discussion on IEEE 802.1p Priority and management of priority queues in Chapter 6.

Figure 5-2 shows how priority queues might be assigned. Access the Priority Queue settings on the second page of the console management screen

Figure 5-2 Example of Priority Queue Assignments

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Contents DES-1218 / DES1226 Wichtige Sicherheitshinweise Limited Warranty Limitation of Warranties CE Mark Warning Table of Contents Technical Specifications Cables and Connectors Cable Lengths Page Conventions About this GuideOverview of this User’s Guide Page Fast Ethernet Technology IntroductionGigabit Ethernet Technology DES-1218/DES-1226 10/100/1000 Mbps Switch Switching TechnologyGeneral Description of Switch Performance features Ports Optional Gigabit Extension Modules1000BASE-SX MT-RJ Module DES-122GM Setup Unpacking and SetupUnpacking Desktop or Shelf Installation Rack InstallationPower on Power FailureIdentifying External Components Front PanelRear panel view of the Switch Rear PanelLED Indicators Side PanelsConnecting the Switch Switch to End NodeSwitch to Hub or Switch Connecting to Network Backbone or Server Gigabit Uplink ConnectionLocal Console Management Switch ManagementConsole port RS-232 DCE User Interface Management Console ScreenSoftware Features Priority Queues Example of Priority Queue AssignmentsVlan Group Port-based VLANsManagement Concepts Port Trunk GroupsIeee 802.1p Priority VLANsVlan Segmentation Port-based VLANsVlan and Trunk Groups Technical Specifications StandardsEMI Cables and Connectors Standard RJ-45 port and connectorStraight cable for use with MDI-II to MDI-X connections Cable Lengths Page Offices Singapore D-LINK International Registration Card