3Com 4007R Implementation Guide - Page 580

580 CHAPTER 22: QOS AND RSVP Defining NonFlow Classifiers Nonflow classifiers enable you to classify bridged or routed frames according to protocol, cast type, and IEEE 802.1p priority tag values. You can define up to 16 nonflow classifiers per Multilayer Switching Module. The module predefines 16 nonflow classifiers for you. Therefore, to define your own nonflow classifier, you must first delete one of the predefined nonflow classifiers. NonFlow Classifier Information You supply the following information when you define a nonflow classifier: s A classifier number in the range of from 400 through 498. (401 through 407, 420, 430, 440, 450, 460, 470, 480, and 490 are predefined.) s A classifier name (a unique name of up to 32 characters long) s A cast type (unicast, multicast, broadcast, or all) s A protocol type (TCP/IP, IP, IPX, AppleTalk, any or custom) If you choose custom, select the protocol type (ethernet or DSAP/SSAP) s For ethernet type enter the hexadecimal value s For DSAP/SSAP type enter the DSAP and SSAP hexadecimal values s An IEEE 802.1p tag value in the range of from 0 through 7 or all. You can make the Multilayer Switching Module recognize any IEEE 802.1p tagged frames with any combination of the priority tags in the range of from 0 through 7. The tag value is automatically used by the associated control when it forwards frames. See "IEEE 802.1p" earlier in this chapter for more information on the tag values. For example, you may create a nonflow classifier for your bridged AppleTalk traffic, assign it a cast type of broadcast, a protocol type of AppleTalk, and an IEEE 802.1p tag value of all. You can then apply a control to this classifier to assign a rate limit, service level, and IEEE 802.1p tag to apply to forwarded frames. For examples of how to define nonflow classifiers and their associated controls for specific scenarios, see "Examples of Classifiers and Controls" later in this chapter.