VSC7511 datasheet(98/324 Pages) MICROSEMI

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Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

DIP_EQ_SIP

166

Set if sender IP address is equal to target IP

address.

Table 51 •

IS2 IP4_TCP_UDP Key

Field Name

Bit

Width

Description

Layer-3 and Layer-4 Information

IP4

Set if frame is IPv4 frame.

IPv6 frames can also use IP4_TCP_UDP entries when

IP6_STD entries are disabled.

L3_FRAGMENT

Set if IP frame is fragmented (More Fragments flag = 1 or

Fragments Offset > 0).

L3_FRAG_OFS_GT0 48

Set if IP frame is fragmented and it is not the first fragment

(Fragments Offset > 0). Such frames do not carry Layer-4

information all Layer-4 information fields in the key are

automatically set to don’t-care when generating the key.

L3_OPTIONS

Set if IP frame contains options (IP len > 5). IP options are

not skipped nor parsed which implies that Layer-4

information cannot be used. All Layer-4 information fields

in the key are automatically set to don’t-care when

generating the key.

L3_TTL_GT0

Set if IP TTL is greater than 0.

L3_TOS

IP TOS field.

L3_IP4_DIP

IPv4 frames: Destination IPv4 address.

IPv6 frames: Source IPv6 address, bits 63:32.

L3_IP4_SIP

IPv4 frames: Source IPv4 address.

IPv6 frames: Source IPv6 address, bit 31:0.

DIP_EQ_SIP

123

Set if source IP address is equal to destination IP address.

Full addresses are checked, also for IPv6.

TCP

124

Set if IP Proto = 6 (TCP).

L4_DPORT

125

TCP/UDP destination port.

L4_SPORT

141

TCP/UDP source port.

L4_RNG

157

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, DSCP: Classified result from IS1.

See Range Checkers, page 94.

SPORT_EQ_DPORT 165

Set if UDP or TCP source port equals UDP or TCP

destination port.

SEQUENCE_EQ0

166

TCP: Set if TCP sequence number is 0.

PTP over UDP: messageType bit 0.

L4_FIN

167

TCP: TCP flag FIN.

PTP over UDP: messageType bit 1.

Table 50 •

IS2 ARP Key (continued)

Field Name

Bit

Width

Description

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