VSC7511 datasheet(72/324 Pages) MICROSEMI

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Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

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

TAG_TYPE = (Frame.InnerTPID <> 0x8100)

PCP = Frame.InnerPCP

DEI = Frame.InnerDEI

VID = Frame.InnerVID

VID == 0?

VID = VLAN_CFG.VLAN_VID

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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