SMC Networks D3GN301 Manuale Utente
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67
SMCD3GN2 Wireless Cable Modem Gateway Administrator Manual
DSCP Based QoS Menu
The DSCP Based QoS menu lets you classify and prioritize traffic using DSCP tags. DSCP
allows the Gateway to determine how traffic classes should be prioritized. Using the DSCP
Based QoS menu, you can use DSCP to provide different levels of service to conforming
and non-conforming traffic by appropriately selecting the DSCP values in this menu. The
Gateway uses the Hierarchical Token Bucket queuing algorithm, which divides the 64
possible DSCP code values into 8 queues.
allows the Gateway to determine how traffic classes should be prioritized. Using the DSCP
Based QoS menu, you can use DSCP to provide different levels of service to conforming
and non-conforming traffic by appropriately selecting the DSCP values in this menu. The
Gateway uses the Hierarchical Token Bucket queuing algorithm, which divides the 64
possible DSCP code values into 8 queues.
Table 11 shows the actual queuing.
Table 11. Queuing for DSCP-Based QoS
Name
Precedence
DSCP Range
Priority
Routing (default)
000 (0)
000000(0) – 000111 (7)
8
Priority
001 (1)
001000 (8) – 001111 (15)
7
Immediate
010 (2)
010000 (16) – 010111 (23)
6
Flash
011 (3)
011000 (24) – 011111 (31)
5
Flash Override
100 (4)
100000 (32) – 100111 (39)
4
Critical
101 (5)
101000 (40) – 101111 (47)
3
Internetwork Control
110 (6)
111000 (48) – 110111 (55)
2
Network Control
111 (7)
111000 (56) – 111111 (63
1
To access the DSCP Based QoS menu, click QOS in the menu bar and then click the DSCP
submenu in the menu bar. Figure 33 shows an example of the menu.
submenu in the menu bar. Figure 33 shows an example of the menu.
Note: The DSCP submenu is not available in the menu bar if Enable QOS Module
is not checked in the QoS Settings menu (see page 62).
is not checked in the QoS Settings menu (see page 62).