DSCP & TOS

The following table shows common decimal, hex and binary values for TOS, broken down into the meaning of the parts of that byte including DSCP values when interpreting that byte as DSCP.

TOS (Dec)
TOS (Hex)
TOS (Bin)

TOS Precedence (Bin)

TOS Precedence (Dec)

TOS Precedence Name
TOS Delay flag
TOS Throughput flag
TOS Reliability flag
DSCP (Bin)
DSCP (Hex)
DSCP (Dec)
DSCP/PHB Class
0
0x00
00000000

000

0

Routine

0

0

0

000000
0x00
0
none
4
0x04
00000100

000

0

Routine

0

0

1

000001
0x01
1
none
8
0x08
00001000

000

0

Routine

0

1

0

000010
0x02
2
none
12
0x0C
00001100

000

0

Routine

0

1

1

000011
0x03
3
none
16
0x10
00010000

000

0

Routine

1

0

0

000100
0x04
4
none
32
0x20
00100000

001

1

Priority

0

0

0

001000
0x08
8
cs1
40
0x28
00101000

001

1

Priority

0

1

0

001010
0x0A
10
af11
48
0x30
00110000

001

1

Priority

1

0

0

001100
0x0C
12
af12
56
0x38
00111000

001

1

Priority

1

1

0

001110
0x0E
14
af13
64
0x40
01000000

010

2

Immediate

0

0

0

010000
0x10
16
cs2
72
0x48
01001000

010

2

Immediate

0

1

0

010010
0x12
18
af21
80
0x50
01010000

010

2

Immediate

1

0

0

010100
0x14
20
af22
88
0x58
01011000

010

2

Immediate

1

1

0

010110
0x16
22
af23
96
0x60
01100000

011

3

Flash

0

0

0

011000
0x18
24
cs3
104
0x68
01101000

011

3

Flash

0

1

0

011010
0x1A
26
af31
112
0x70
01110000

011

3

Flash

1

0

0

011100
0x1C
28
af32
120
0x78
01111000

011

3

Flash

1

1

0

011110
0x1E
30
af33
128
0x80
10000000

100

4

FlashOverride

0

0

0

100000
0x20
32
cs4
136
0x88
10001000

100

4

FlashOverride

0

1

0

100010
0x22
34
af41
144
0x90
10010000

100

4

FlashOverride

1

0

0

100100
0x24
36
af42
152
0x98
10011000

100

4

FlashOverride

1

1

0

100110
0x26
38
af43
160
0xA0
10100000

101

5

Critical

0

0

0

101000
0x28
40
cs5
176
0xB0
10110000

101

5

Critical

1

0

0

101100
0x2C
44
voice-admit
184
0xB8
10111000

101

5

Critical

1

1

0

101110
0x2E
46
ef
192
0xC0
11000000

110

6

InterNetwork Control

0

0

0

110000
0x30
48
cs6
224
0xE0
11100000

111

7

Network Control

0

0

0

111000
0x38
56
cs7