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VSC7511 数据表(PDF) 72 Page - Microsemi Corporation

部件名 VSC7511
功能描述  4-Port Layer-2 Gigabit Ethernet Switch
PDF  324 Pages
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制造商  MICROSEMI [Microsemi Corporation]
网页  http://www.microsemi.com
标志 MICROSEMI - Microsemi Corporation

VSC7511 数据表(HTML) 72 Page - Microsemi Corporation

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Functional Descriptions
VMDS-10488 VSC7511 Datasheet Revision 4.2
57
Figure 22 •
Basic VLAN Classification Flow
The basic classifier can overwrite the basic classified PCP value with the frame’s basic classified QoS
class coming from the basic QoS classification. This option is enabled in
ANA:PORT:PTP_DLY1_CFG.USE_QOS_AS_PCP_ENA. The basic classified tag header can be
overwritten by more intelligent decisions made in the VCAP IS1.
3.7.5
Link Aggregation Code Generation
This section provides information about the functions in link aggregation code generation.
VLAN_AWARE_ENA[port] and
”Frame has outer tag”
VLAN_INNER_TAG_ENA[port] and
”Frame has inner tag”
TAG_TYPE = VLAN_CFG.VLAN_TAG_TYPE
PCP = VLAN_CFG.VLAN_PCP
DEI = VLAN_CFG.VLAN_DEI
VID = VLAN_CFG.VLAN_VID
VLAN_POP_CNT = VLAN_CFG.VLAN_POP_CNT
Y
TAG_TYPE = (Frame.InnerTPID <> 0x8100)
PCP = Frame.InnerPCP
DEI = Frame.InnerDEI
VID = Frame.InnerVID
Y
VID == 0?
VID = VLAN_CFG.VLAN_VID
Y
Basic classified tag header (TAG_TYPE, PCP, DEI, VID)
TAG_TYPE = (Frame.OuterTPID <> 0x8100)
PCP = Frame.OuterPCP
DEI = Frame.OuterDEI
VID = Frame.OuterVID



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