01 = SNAP Public
L3_Framing 2 217: 216 Bit[25:24] 00 = IPv4
IP_TOS 8 215: 208 Bit[23:16] Type of Service field
in IPv4 header
IP_Protocol 8 207: 200 Bit[15:8] Protocol field in IPv4
header
IP_Fragmentatio
n
1 199 Bit[7] 0 = not fragmented
1 = fragmented
Non_First_Frag
ment
1 198 Bit[6] Bit[6] 0 = not
fragmented or first
fragment
1 = not first
fragmented
IP_Authenticatio
n
1 197 Bit[5] 0 = not authenticated
1 = authenticated
TTL_Range 2 196:195 Bit[4:3] 00: TTL = 0
01: TTL = 1
10: TTL = others
11: TTL = 255
Reserved 2 194:193 Bit[2:1] Default to zero
UDF_Valid[8] 1 192 Bit[0] Indicates whether
UDF_n_A8 is valid
UDF_Valid[7:0] 8 191: 184 TCAM Data
Register 5, Page
A0h, Address 24h–
27h.
TCAM Mask
Register 5, Page
A0h, Address 44h–
47h.
Bit[31:24] Indicates if
UDF_n_A[7:0] is
valid
S-Tag 16 183: 168 Bit[23:8] The SVLAN tag is
carried in the packet
explicitly or is
generated implicitly
based on the ingress
port default setting.
C-Tag 8 167: 160 Bit[7:0] The CVLAN tag is
carried in the packet
explicitly or is
generated implicitly
based on the ingress
port default setting.
C-Tag 8
(LSB)
159: 152 TCAM Data
Register 4, Page
A0h, Address 20h–
23h.
TCAM Mask
Register 4, Page
A0h, Address 40h–
43h.
Bit[31:24]
UDF_n_A8 16 151: 136 Bit[23:8] Must be validated by
UDF_Valid[8]
UDF_n_A7 8 135: 128 Bit[7:0] Must be validated by
UDF_Valid[7]
UDF_n_A7 8
(LSB)
127: 120 TCAM Data
Register 3, Page
A0h, Address 1Ch–
Bit[31:24]
UDF_n_A6 16 119: 104 Bit[23:8] Must be validated by
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