Mapping Ip Precedence Priority; Table 3-15 Mapping Ip Precedence Values To Cos Priority Queues; Figure 3-120 Globally Enabling The Ip Precedence Priority Status - Digisol DG-FS4526 Management Manual

3
Configuring the Switch

Mapping IP Precedence Priority

The Type of Service (TOS) octet in the IPv4 header includes three precedence bits
(see page 3-192) defining eight different priority levels ranging from highest priority
(7) for network control packets to lowest priority (0) for routine traffic. Bits 6 and 7 are
used for network control, and the other bits for various application types.
Precedence values are defined in the following table.

Table 3-15 Mapping IP Precedence Values to CoS Priority Queues

IP Precedence Value
0
1
2
3
4
5
6
7
Command Attributes
• IP Precedence Priority Status – Enables or disables the IP Precedence priority.
• IP Precedence Priority Table
• Class of Queue Service Value
Note that queue "0" represents low priority and "3" represent high priority.
Note:
IP Precedence priority settings apply to all interfaces.
Web – Click Priority, IP Precedence Priority Status. Set the IP Precedence Priority
Status to Enabled.

Figure 3-120 Globally Enabling the IP Precedence Priority Status

3-190
Traffic Type
Routine
Priority
Immediate
Flash
Flash Override
Critical
Internetwork Control
Network Control
Shows the IP Precedence to CoS map.
–
Maps an IP Precedence value to a CoS queue.
–
www.digisol.com
Default CoS Output Queue
0
0
1
1
2
2
3
3