User manual ZYXEL MS-7206

[. . . ] MS-7206 Modular Ethernet Switch System User's Guide Version 3. 75 4/2007 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 MM-7201. You should have at least a basic knowledge of TCP/IP and Ethernet networking concepts and topology. It is recommended you use the web configurator to configure the MM-7201. Related Documentation · MS-7206 Hardware Installation Guide Hardware guide for the system. · Web Configurator Online Help Embedded web help for descriptions of individual screens and supplementary information. · Supporting Disk Refer to the included CD for support documents. [. . . ] A value of Ethernet II indicates that the packets are formatted according to RFC 894, Ethernet II encapsulation. Specify the fields below to configure a layer 2 classifier. Layer 2 122 MS-7206 User's Guide Chapter 23 Classifier Table 41 Classifier (continued) LABEL VLAN Priority Ethernet Type Source MAC Address Port Destination MAC Address Layer 3 DSCP IP Protocol Select Any to apply the rule to all MAC addresses. To specify a destination, select the second choice and type a MAC address in valid MAC address format (six hexadecimal character pairs). Select Any to classify traffic from any DSCP or select the second option and specify a DSCP (DiffServ Code Point) number between 0 and 63 in the field provided. Select an IP protocol type or select Other and enter the protocol number in decimal value. This means that the switch will pick out the packets that are sent to establish TCP connections. Specify the address prefix by entering the number of ones in the subnet mask. To specify a source, select the second choice and type a MAC address in valid MAC address format (six hexadecimal character pairs). Select the slot and type the port number to which the rule should be applied. DESCRIPTION Select Any to classify traffic from any VLAN or select the second option and specify the source VLAN ID in the field provided. Select Any to classify traffic from any priority level or select the second option and specify a priority level in the field provided. Select an Ethernet type or select Other and enter the Ethernet type number in hexadecimal value. See Table 42 on page 124 for information. Source IP Address/ Address Prefix Socket Number Note: You must select either UDP or TCP in the IP Protocol field before you configure the socket numbers. Select Any to apply the rule to all TCP/UDP protocol port numbers or select the second option and enter a TCP/UDP protocol port number. Destination IP Address/ Address Prefix Socket Number Enter a destination IP address in dotted decimal notation. Specify the address prefix by entering the number of ones in the subnet mask. Note: You must select either UDP or TCP in the IP Protocol field before you configure the socket numbers. Select Any to apply the rule to all TCP/UDP protocol port numbers or select the second option and enter a TCP/UDP protocol port number. Add Click Add to insert the entry in the summary table below and save your changes to the switch's run-time memory. The switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the nonvolatile memory when you are done configuring. MS-7206 User's Guide 123 Chapter 23 Classifier Table 41 Classifier (continued) LABEL Cancel Clear Index Active Name Rule Delete Cancel DESCRIPTION Click Cancel to reset the fields back to your previous configuration. 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 42 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 Some of the most common IP ports are: Table 43 Common IP Ports PORT NUMBER 21 23 25 53 80 110 PORT NAME FTP Telnet SMTP DNS HTTP POP3 23. 3 Classifier Example The following screen shows an example where you configure a classifier that identifies all traffic from MAC address 00:50:ba:ad:4f:81 on port 2 in slot 3. 124 MS-7206 User's Guide Chapter 23 Classifier Figure 49 Example: Configuring a Classifier The resulting entry in the summary table is shown below. Figure 50 Example: Looking at the Classifier in the Summary Table After you have configured a classifier, you can configure a policy (in the Policy screen) to define action(s) on the classified traffic flow. MS-7206 User's Guide 125 Chapter 23 Classifier 126 MS-7206 User's Guide CHAPTER This chapter introduces policy rules and shows you how to configure them. 24 Policy Rule 24. 1 Policy Rules Overview A classifier distinguishes traffic into flows based on the configured criteria. A policy rule ensures that a traffic flow gets the requested treatment in the network. See Chapter 23 on page 121 for more information about classifiers. 24. 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 DiffServcompliant 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. 24. 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. [. . . ] 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. Operation of this device in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Taiwanese BSMI (Bureau of Standards, Metrology and Inspection) A Warning: Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. [. . . ]