Hitachi GR2000 Series Manual Do Utilizador
Filtering/QoS Information
GR2K-GA-0014
1-199
Ver. 07-02
Hatching part is RFC’s recommended value.
Table 1-99 Mapping of TOS Value and Output/Queuing Priority Class
Output/
Queuing
Priority Class
Discard4
Discard3
Discard2
Discard1
priority8
High
priority
priority7
↑
priority6
101110
184
priority5
100010
100100
100110
136
144
152
priority4
011010
011100
011110
104
112
120
priority3
010010
010100
010110
72
80
88
priority2
001010
001100
001110
40
48
56
↓
priority1
000000
Low
0
priority
Low drop
←
→
High drop
*
Note: In output priority control, the packet with bigger priority is sent out by priority. In
queuing priority, the one with smaller value is discarded by priority.
Legend:
DSCP value (Binary)
DSCP value (Decimal)
Hatched value is the RFC’s recommended value:
EF’s recommended value
Best Effort’s recommended value
AF’s recommended value
Random code point