Hirschmann RS20 User Manual page 133

Network Load Control
The PHB class selector assigns the 7 possible IP precedence values from
the old ToS field to specific DSCP values, thus ensuring the downwards
compatibility.
ToS Meaning
Network Control
Internetwork Control
Critical
Flash Override
Flash
Immidiate
Priority
Routine
Table 10: Assigning the IP precedence values to the DSCP value
DSCP value
0
1-7
8
9,11,13,15
10,12,14
16
17,19,21,23
18,20,22
24
25,27,29,31
26,28,30
32
33,35,37,39
34,36,38
40
41,42,43,44,45,47
46
48
49-55
56
57-63
Table 11: Mapping the DSCP values onto the traffic classes
UM BasicConfig L2E
Release 8.0 05/2013
Precedence Value Assigned DSCP
111
110
101
100
011
010
001
000
DSCP name
Best Effort /CS0
CS1
AF11,AF12,AF13
CS2
AF21,AF22,AF23
CS3
AF31,AF32,AF33
CS4
AF41,AF42,AF43
CS5
EF
CS6
CS7
CS7 (111000)
CS6 (110000)
CS5 (101000)
CS4 (100000)
CS3 (011000)
CS2 (010000)
CS1 (001000)
CS0 (000000)
Traffic Class
(default setting)
1
1
0
0
0
0
0
0
1
1
1
2
2
2
2
2
2
3
3
3
3
8.4 QoS/Priority
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