VSC7511 datasheet(70/324 Pages) MICROSEMI

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Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

Figure 21 •

Basic DSCP Classification Flow Chart

The translation part of the DSCP classification is common for both QoS, DP, and DSCP classification.

The basic classified QoS, DP, and DSCP can be overwritten by more intelligent decisions made in the

VCAP IS1.

3.7.4

VLAN Classification

The following table lists the registers associated with VLAN classification.

Table 29 •

VLAN Configuration Registers

Description

Replication

QOS = QOS_DEFAULT_VAL[port]

DP = DP_DEFAULT_VAL[port]

DSCP = 0

”Frame is IPv4 or IPv6"

QOS_DSCP_ENA[port]

DSCP_TRANSLATE_ENA[port]

DSCP = Frame.DSCP

DSCP = DSCP_TRANSLATE_VAL[DSCP]

DSCP_TRUST_ENA[DSCP]

QOS = QOS_DSCP_VAL[DSCP]

DP = DP_DSCP_VAL[DSCP]

”Frame has inner tag” and

QOS_PCP_ENA[port] and

VLAN_INNER_TAG_ENA[port]=1

QOS = QOS_PCP_DEI_VAL[port][Frame.InnerDEI][Frame.InnerPCP]

DP = DP_PCP_DEI_VAL[port][Frame.InnerDEI][Frame.InnerPCP]

Basic classified QoS

Basic classified DP

”Frame has outer tag” and

QOS_PCP_ENA[port]

QOS = QOS_PCP_DEI_VAL[port][Frame.OuterDEI][Frame.OuterPCP]

DP = DP_PCP_DEI_VAL[port][Frame.OuterDEI][Frame.OuterPCP]

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