Planet Technology SGSD-1022 - Manual (Page 236)

User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
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Precedence TOS MBZ
Pv4 Packet Header Type of Service Octet
The four TOS bits provide 15 different priority values, however only five values have a defined meaning. The following table lists
the defined IP TOS values and the default mapping to CoS queues on the switch. (All the TOS values not defined are mapped to
CoS queue 0.)
IP TOS Value Requested Service Default CoS Output Queue
0 Normal service 0
1 Minimize monetary cost 0
2 Maximize reliability 1
4 Maximize throughput 2
8 Minimize delay 3
Table 4-10-5 Mapping IP TOS Values to CoS Priority Queues
1. Click QoS, Priority, IP TOS Priority Status.
2. Set the IP TOS Priority Status to Enabled.
3. Click QoS, Priority, IP TOS Priority.
4. Select an IP TOS value in the IP TOS Priority Table, enter a queue number in the Class of Queue Service Value field, and
then click Apply.
4.10.2.8 IP TOS Priority Status
Figure 4-10-9 IP TOS Priority Status page screenshot
The page includes the following fields:
Object Description
IP TOS Priority Status Enables or disables the IP TOS priority.