User manual ZYXEL GS2200-48

[. . . ] GS2200-48 Intelligent Layer 2 Switch Default Login Details IP Address http://192. 168. 0. 1 (Out-of-band MGMT port) http://192. 168. 1. 1 (In-band ports) User Name Password admin 1234 Firmware Version 3. 80 Edition 1, 7/2009 www. zyxel. com www. zyxel. com Copyright © 2009 ZyXEL Communications Corporation 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 or via commands. Related Documentation · Web Configurator Online Help Embedded web help for descriptions of individual screens and supplementary information. · Command Reference Guide The Command Reference Guide explains how to use the Command-Line Interface (CLI) and CLI commands to configure the Switch. Note: It is recommended you use the web configurator to configure the Switch. · Supporting Disc Refer to the included CD for support documents. · ZyXEL Web Site Please refer to www. zyxel. com for additional support documentation and product certifications. Documentation Feedback Send your comments, questions or suggestions to: techwriters@zyxel. com. tw Thank you!The Technical Writing Team, ZyXEL Communications Corp. , 6 Innovation Road II, Science-Based Industrial Park, Hsinchu, 30099, Taiwan. Disclaimer Graphics in this book may differ slightly from the product due to differences in operating systems, operating system versions, or if you installed updated firmware/software for your device. [. . . ] To change the settings of a rule, click a number in the Index field. Note: When two rules conflict with each other, a higher layer rule has priority over a lower layer rule. Figure 69 Advanced Application > Classifier: Summary Table 152 GS2200-48 User's Guide Chapter 18 Classifier The following table describes the labels in this screen. Table 44 Classifier: Summary Table LABEL Index Active Name Rule Delete Cancel DESCRIPTION This field displays the index number of the rule. This field displays Yes when the rule is activated and No when it is deactivated. Click Cancel to clear the Delete check boxes. The following table shows some other common Ethernet types and the corresponding protocol number. Table 45 Common Ethernet Types and Protocol Number ETHERNET TYPE IP ETHII X. 75 Internet NBS Internet ECMA Internet Chaosnet X. 25 Level 3 XNS Compat Banyan Systems BBN Simnet IBM SNA AppleTalk AARP PROTOCOL NUMBER 0800 0801 0802 0803 0804 0805 0807 0BAD 5208 80D5 80F3 In the Internet Protocol, there is a field called "Protocol" to identify the IP protocol type. The following table shows some common protocol types and the corresponding protocol number. Refer to http://www. iana. org/assignments/ protocol-numbers for a complete list. Table 46 Common IP Protocol Types and Protocol Numbers PROTOCOL TYPE ICMP TCP UDP EGP L2TP PROTOCOL NUMBER 1 6 17 8 115 GS2200-48 User's Guide 153 Chapter 18 Classifier Some of the most common IP ports are: Table 47 Common TCP and UDP Port Numbers PORT NUMBER 21 23 25 53 80 110 PORT NAME FTP Telnet SMTP DNS HTTP POP3 154 GS2200-48 User's Guide Chapter 18 Classifier 18. 4 Classifier Example The following screen shows an example of configuring a classifier that identifies all traffic from MAC address 00:50:ba:ad:4f:81 on port 2. Figure 70 Classifier: Example example After you have configured a classifier, you can configure a policy to define action(s) on the classified traffic flow. See Chapter 19 on page 157 for information on configuring a policy rule. GS2200-48 User's Guide 155 Chapter 18 Classifier 156 GS2200-48 User's Guide CHAPTER This chapter shows you how to configure policy rules. 19 Policy Rule 19. 1 Policy Rules Overview A classifier distinguishes traffic into flows based on the configured criteria (refer to Chapter 18 on page 149 for more information). A policy rule ensures that a traffic flow gets the requested treatment in the network. 19. 1. 1 DiffServ DiffServ (Differentiated Services) is a class of service (CoS) model that marks packets so that they receive specific per-hop treatment at DiffServ-compliant network devices along the route based on the application types and traffic flow. Packets are marked with DiffServ Code Points (DSCPs) indicating the level of service desired. This allows the intermediary DiffServ-compliant network devices to handle the packets differently depending on the code points without the need to negotiate paths or remember state information for every flow. In addition, applications do not have to request a particular service or give advanced notice of where the traffic is going. 19. 1. 2 DSCP and Per-Hop Behavior DiffServ defines a new DS (Differentiated Services) field to replace the Type of Service (TOS) field in the IP header. The DS field contains a 2-bit unused field and a 6-bit DSCP field which can define up to 64 service levels. DSCP is backward compatible with the three precedence bits in the ToS octet so that non-DiffServ compliant, ToS-enabled network device will not conflict with the DSCP mapping. DSCP (6 bits) Unused (2 bits) GS2200-48 User's Guide 157 Chapter 19 Policy Rule The DSCP value determines the forwarding behavior, the PHB (Per-Hop Behavior), that each packet gets across the DiffServ network. Based on the marking rule, different kinds of traffic can be marked for different kinds of forwarding. Resources can then be allocated according to the DSCP values and the configured policies. 19. 2 Configuring Policy Rules You must first configure a classifier in the Classifier screen. Refer to Section 18. 2 on page 149 for more information. 158 GS2200-48 User's Guide Chapter 19 Policy Rule Click Advanced Applications > Policy Rule in the navigation panel to display the screen as shown. Figure 71 Advanced Application > Policy Rule GS2200-48 User's Guide 159 Chapter 19 Policy Rule The following table describes the labels in this screen. Table 48 Advanced Application > Policy Rule LABEL Active Name Classifier(s) DESCRIPTION Select this option to enable the policy. This field displays the active classifier(s) you configure in the Classifier screen. To select more than one classifier, press [SHIFT] and select the choices at the same time. Parameters Set the fields below for this policy. You only have to set the field(s) that is related to the action(s) you configure in the Action field. General Egress Port Priority DSCP TOS Metering Type the number of an outgoing port. Traffic that exceeds the maximum bandwidth allocated (in cases where the network is congested) is called out-of-profile traffic. Bandwidth Specify the bandwidth in kilobit per second (Kbps). Out-ofProfile DSCP Action Specify the action(s) the Switch takes on the associated classified traffic flow. [. . . ] Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners. Certifications Federal Communications Commission (FCC) Interference Statement This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: · This device may not cause harmful interference. GS2200-48 User's Guide 349 Appendix B Legal Information · This device must accept any interference received, including interference that may cause undesired operations. FCC Warning This device has been tested and found to comply with the limits for a Class A digital switch, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment. This device generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. [. . . ]