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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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VSC7440 데이터시트(PDF) 126 Page - Microsemi Corporation |
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VSC7440 데이터시트(HTML) 126 Page - Microsemi Corporation |
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126 / 444 page  Functional Descriptions VMDS-10492 VSC7440 Datasheet Revision 4.2 109 Figure 24 • Basic DP Classification Flow Chart The following illustration shows the flow chart for basic DSCP classification. DP = DEFAULT_DP_VAL[port] DSCP = 0 ”Frame is IPv4 or IPv6" DSCP_DP_ENA[port] DSCP_TRANSLATE_ENA[port] Y DSCP = Frame.DSCP Y DSCP = DSCP_TRANSLATE_VAL[DSCP] Y DSCP_TRUST_ENA[DSCP] DP = DSCP_DP_VAL[DSCP] Y ”Frame has inner tag” and PCP_DEI_DP_ENA[port] and VLAN_TAG_SEL[port] DP = PCP_DEI_DP_VAL[port][Frame.InnerDEI][Frame.InnerPCP] Y ”Frame has outer tag” and PCP_DEI_DP_ENA[port] DP = PCP_DEI_DP_VAL[port][Frame.OuterDEI][Frame.OuterPCP] Y Y Basic classified DP (IFH.VSTAX.QOS.CL_DP) ”Frame is BPDU” (DMAC = 0x0180C200000X) and ”redirect to CPU” ”Frame is GARP” (DMAC = 0x0180C200002X) and ”redirect to CPU” ”Frame is Y.1731/IEEE802.1ag” (DMAC = 0x0180C200003X) and ”redirect to CPU” DP = 0 DP = 0 DP = 0 Y Y Y |
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