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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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KSZ9567R 数据表(PDF) 45 Page - Microchip Technology |
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KSZ9567R 数据表(HTML) 45 Page - Microchip Technology |
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45 / 233 page  2022 Microchip Technology Inc. and its subsidiaries DS00002329E-page 45 KSZ9567R The examples in Figure 4-7 are interpreted as follows: • Rule #0: Test the matching rule entry #0. If true, apply action rule entry #0. • Rule #1: Test the matching rule entry #1. If true, apply action rule entry #0. • Rule #2: Test the matching rule entry #2. If true, apply action rule entry #1. • Matching rule entry #3 is configured for the counter function. Action entry #3 is used to hold the corresponding count value. • Rule #4: Test the matching rule entries #4, 5 and 6. If all are true, apply action rule entry #4. • Rule #6: Test the matching rule entry #6. If true, apply action rule entry #5. • Rule #8: Test the matching rule entries #7 and 11. If both are true, apply action rule entry #9. No more than one action can be taken for any packet. If the matching conditions are true for multiple RuleSets, then the corresponding FRN field with the lowest value (highest priority) determines the action to be taken. Note that processing entries #0 and 1 produce an OR function: action #0 is taken if RuleSet #0 or RuleSet #1 is true. Notice that processing entries #4 and 6 have overlapping RuleSets, but different FRNs. This can be summarized as: If match #4, 5 and 6 are all true, then apply action #4, Else if match #6 is true, then apply action #5. Table 4-16 summarizes the available matching options. The MD and ENB fields are used to select the desired matching option. More configuration details are given in the following section. FIGURE 4-7: ACL STRUCTURE AND EXAMPLE RULE VALUES FRN 0 0 1 4 5 9 #0 #15 #14 #13 #12 #11 #10 #9 #8 #7 #6 #5 #4 #3 #2 #1 0 1 2 none 4, 5, 6 none 6 none 7, 11 none none none none none none none RuleSet Processing Field Entry Number Entry #0 Entry #1 Entry #2 Entry #3 Entry #4 Entry #5 Entry #6 Entry #7 Entry #8 Entry #9 Entry #10 Entry #11 Entry #12 Entry #13 Entry #14 Entry #15 Entry #0 Entry #1 Entry #2 Entry #3 Entry #4 Entry #5 Entry #6 Entry #7 Entry #8 Entry #9 Entry #10 Entry #11 Entry #12 Entry #13 Entry #14 Entry #15 Action Rule Matching Rule Action Field OR AND When counter function is enabled in Matching Rule. |
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