User manual ZYXEL ES-1528

[. . . ] ES-1528 Ethernet Switch User's Guide Version 1. 12 10/2006 Edition 1 www. zyxel. com About This User's Guide About This User's Guide Intended Audience This manual is intended for people who want to configure the switch using the web configurator. You should have at least a basic knowledge of TCP/IP networking concepts and topology. Related Documentation · Quick Start Guide The Quick Start Guide is designed to help you get up and running right away. It contains information on setting up your hardware connections. [. . . ] ToS Based QoS - Assign priority to packets based on their Type of Service (ToS) tagging. IP Address Based QoS - Assign priority to packets based on their source IP address. You can choose one of these ways to alter the way incoming packets are prioritized or you can choose not to use any QoS enhancement setting on the switch. 11. 3 Configuring QoS Use the QoS Setting screen to specify a queuing method and configure queue weights for the switch. Click QoS in the navigation panel to view the following screen. Figure 36 QoS Setting 72 ES-1528 User's Guide Chapter 11 QoS The following table describes the labels in this screen. Table 17 QoS Setting LABEL Advanced Number of queues Scheduling Method DESCRIPTION Click this link to configure QoS settings based on port number, IP address or configure DSCP or ToS priority to 802. 1p priority mappings. This field displays the number of queues configurable on the switch. Click Change to edit the number of queues on the switch. Select Strict Priority or Weighted Round Robin. Strict Priority scheduling singles out the highest priority queue and ensures all queued traffic in this queue is transmitted before servicing the lower priority queues. Strict Priority scheduling services the remaining queues using WRR. Note: Queue weights can only be changed when Weighted Round Robin is selected. Weighted Round Robin scheduling services queues on a rotating basis based on their queue weight (the number you configure in the queue Weight field). Queues with larger weights get more service than queues with smaller weights. Priority This value indicates packet priority and is retrieved from the priority tag field of incoming packets. The values range from 0 (lowest priority) to 7 (highest priority). Click the options below the priority values to send packets of a specific priority to a particular queue. You can also set this priority based on criteria you configure in the Advanced QoS screens. See the sections later in this chapter for more information. This field indicates which Queue (0 to 3) you are configuring. Queue 0 has the lowest priority and Queue 3 the highest priority. You can only configure the queue weights when Weighted Round Robin is selected. Bandwidth is divided across the different traffic queues according to their weights. Queue 0 . . . Queue 3 Weight Note: If you want to use Strict Priority but want to change the weights for the queues, configure them with Weighted Round Robin selected first and then change the scheduling method to Strict Priority. Apply Click Apply to save your changes to the switch. 11. 3. 1 Change Number of Queues Use the Change Number of Queues screen to edit the number of queues on the switch. Click Change in the QoS Setting screen to view the following screen. Figure 37 Change Number of Queues Select the number of queues from the Number of Queues drop down list box and click Apply to save your settings to the switch. ES-1528 User's Guide 73 Chapter 11 QoS 11. 4 Advanced QoS Settings The following sections describe additional methods for setting priority for incoming packets on the ports. The switch allows you to choose one of the following methods: Port Based QoS, DSCP Based QoS, ToS Based QoS or IP Address Based QoS. 11. 4. 1 Port Based QoS You can configure the switch to assign a IEEE 802. 1p priority to packets based on the ingress (incoming) port of the packet. [. . . ] Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. CLASS 1 LASER PRODUCT APPAREIL A LASER DE CLASS 1 PRODUCT COMPLIES WITH 21 CFR 1040. 10 AND 1040. 11. PRODUIT CONFORME SELON 21 CFR 1040. 10 ET 1040. 11. Viewing Certifications 1 Go to http://www. zyxel. com. [. . . ]