Table 17: Default Mapping Of Dscp Values To Internal Phb/Drop Values - Edge-Core ECS4110-28T Management Manual

| Class of Service
C 10
HAPTER
Layer 3/4 Priority Settings
Drop Precedence – Drop precedence used for Random Early Detection
◆
in controlling traffic congestion. (Range: 0 - Green, 3 - Yellow, 1 - Red)

Table 17: Default Mapping of DSCP Values to Internal PHB/Drop Values

ingress- 0 1
dscp1
ingress-
dscp10
0 0,0 0,1
1 1,0 1,3
2 2,0 2,1
3 3,0 3,3
4 5,0 5,1
5 6,0 6,3
6 7,0 7,1
The ingress DSCP is composed of ingress-dscp10 (most significant digit in the left column)
and ingress-dscp1 (least significant digit in the top row (in other words, ingress-dscp =
ingress-dscp10 * 10 + ingress-dscp1); and the corresponding internal-dscp is shown at
the intersecting cell in the table.
The ingress DSCP is bitwise ANDed with the binary value 11 to determine the drop
precedence. If the resulting value is 10 binary, then the drop precedence is set to 0.
W I
EB NTERFACE
To map DSCP values to internal PHB/drop precedence:
Click Traffic, Priority, DSCP to DSCP.
1.
Select Configure from the Action list.
2.
Set the PHB and drop precedence for any DSCP value.
3.
Click Apply.
4.
Figure 133: Configuring DSCP to DSCP Internal Mapping
To show the DSCP to internal PHB/drop precedence map:
Click Traffic, Priority, DSCP to DSCP.
1.
Select Show from the Action list.
2.
– 282 –
2 3 4 5
0,0 0,3 0,0 0,1
1,0 1,1 1,0 1,3
2,0 2,3 3,0 3,1
4,0 4,1 4,0 4,3
5,0 5,3 5,0 5,1
6,0 6,1 6,0 6,3
7,0 7,3
6 7 8 9
0,0 0,3 1,0 1,1
2,0 2,1 2,0 2,3
3,0 3,3 3.0 3,1
4,0 4,1 4.0 4,3
6,0 5,3 6,0 6,1
7,0 7,1 7.0 7,3