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VSC7511 Datasheet(PDF) 106 Page - Microsemi Corporation |
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VSC7511 Datasheet(HTML) 106 Page - Microsemi Corporation |
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106 / 324 page  Functional Descriptions VMDS-10488 VSC7511 Datasheet Revision 4.2 91 All IPv6 frames are subject to a SMAC_SIP6 lookup in IS2. The following table lists the SMAC_SIP6 key. All IPv4 frames are subject to a SMAC_SIP4 lookup in IS2. The following table lists the SMAC_SIP4 key. 3.8.3.1.3 SMAC_SIP4 and SMAC_SIP6 Action Encoding The VCAP generates an action vector from the SMAC_SIP4 or SMAC_SIP6 lookup if there is a match. There is no default action vector if no match. The following table lists the available fields for the action vector from both the SMAC_SIP4 and SMAC_SIP6 lookups. Table 61 • SMAC_SIP6 Key Field Name Bit Width Description Lookup Information S2_TYPE_HALF 0 4 8: SMAC_SIP4. Interface Information IGR_PORT 4 4 The port number where the frame was received (0-11). Layer-2 Information L2_SMAC 8 48 Frame’s source MAC address. Layer-3 Information L3_IP6_SIP 56 128 Frame’s source IPv6 address. Table 62 • SMAC_SIP4 Key Field Name Bit Width Description Interface Information IGR_PORT 0 4 The port number where the frame was received (0-11). Layer-2 Information L2_SMAC 4 48 Frame’s source MAC address. Layer-3 Information L3_IP4_SIP 52 32 Frame’s source IPv4 address. Table 63 • SMAC_SIP4 and SMAC_SIP6 Action Fields Action Field Bit Width Description CPU_COPY_ENA 0 1 Setting this bit to 1 causes all frames that hit this action to be copied to the CPU extraction queue specified in CPU_QU_NUM. CPU_QU_NUM 1 3 Determines the CPU extraction queue that is used when a frame is copied to the CPU due to a HIT_ME_ONCE or CPU_COPY_ENA action. FWD_KILL_ENA 4 1 Setting this bit to 1 denies forwarding of the frame forwarding to any front port. The frame can still be copied to the CPU by other actions. HOST_MATCH 5 1 Used for IP source guarding. If set, it signals that the host is a valid (for instance a valid combination of source MAC address and source IP address). HOST_MATCH is input to the IS2 keys. HIT_STICKY 6 1 If set, a frame has matched against the associated entry. |
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