VSC7511 datasheet(87/324 Pages) MICROSEMI

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Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

The following four tables provide information about how the full keys, S1_NORMAL_IP6, S1_7TUPLE,

and S1_5TUPLE_IP6, are generated. The first table lists the common fields between the full keys.

L4_RNG

148

Range mask with one bit per range. A bit is set, if the

corresponding range is matched.

Range types: SPORT, DPORT, SPORT or DPORT, VID,

DSCP

Input to range checkers:

SPORT/DPORT: From frame

VID: From frame if tagged, otherwise port’s VID

DSCP: Translated DSCP from the basic classification.

See Range Checkers, page 94.

IP_PAYLOAD_S1_5TUPLE 156

Payload after IPv4 or IPv6 header. For TCP and UDP

frames, this field contains the source and destination port

numbers.

Table 41 •

IS1 Common Key Fields for Full keys

Field Name

Bit

Width

Description

Lookup Information

IS1_TYPE_FULL

0: S1_NORMAL_IP6 entries.

1: S1_7TUPLE entries.

2: S1_5TUPLE_IP6 entries.

LOOKUP

0: First lookup.

1: Second lookup.

2: Third lookup.

Interface and Miscellaneous Information

IGR_PORT_MASK

Ingress port mask. VCAP generated with one bit set in the

mask corresponding to the ingress port.

RESERVED

Reserved. Must be set to don’t care.

OAM_Y1731

Set if frame is a Y.1731 frame with EtherType = 0x8902.

L2_MC

Set if frame’s destination MAC address is a multicast

address (bit 40 = 1).

L2_BC

Set if frame’s destination MAC address is the broadcast

address (FF-FF-FF-FF-FF-FF).

IP_MC

Set if frame is IPv4 frame and frame’s destination MAC

address is an IPv4 multicast address (0x01005E0 /25).

Set if frame is IPv6 frame and frame’s destination MAC

address is an IPv6 multicast address (0x3333/16).

Tagging Information

VLAN_TAGGED

Set if frame has one or more Q-tags. Independent of port

VLAN awareness.

VLAN_DBL_TAGGED 30

Set if frame has two or more Q-tags. Independent of port

VLAN awareness.

TPID

0: Customer TPID.

1: Service TPID (88A8 or programmable).

S1_NORMAL: TPID is derived from tag pointed to by

VCAP_CFG.S1_VLAN_INNER_TAG_ENA.

Table 40 •

Specific Fields for IS1 Half Key S1_5TUPLE_IP4 (continued)

Field Name

Bit

Width

Description

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