Mapping Ip Precedence; Table 3-17 Mapping Ip Precedence; Figure 3-114 Mapping Ip Precedence Priority Values - SMC Networks 8126PL2-F - annexe 1 Management Manual

10/100/1000 l2-lite smb poe gigabit switch
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3
Configuring the Switch

Mapping IP Precedence

The Type of Service (ToS) octet in the IPv4 header includes three precedence bits
defining eight different priority levels ranging from highest priority for network control
packets to lowest priority for routine traffic. The default IP Precedence values are
mapped one-to-one to Class of Service values (i.e., Precedence value 0 maps to
CoS value 0, and so forth). Bits 6 and 7 are used for network control, and the other
bits for various application types. ToS bits are defined in the following table.
Priority Level
Traffic Type
7
Network Control
6
Internetwork Control
5
Critical
4
Flash Override
Command Attributes
• IP Precedence Priority Table – Shows the IP Precedence to CoS map.
• Class of Service Value – Maps a CoS value to the selected IP Precedence value.
Note that "0" represents low priority and "7" represent high priority.
Web – Click Priority, IP Precedence Priority. Select an entry from the IP Precedence
Priority Table, enter a value in the Class of Service Value field, and then click Apply.
3-196

Table 3-17 Mapping IP Precedence

Figure 3-114 Mapping IP Precedence Priority Values

Priority Level
Traffic Type
3
Flash
2
Immediate
1
Priority
0
Routine

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