TP-Link TL-SG5426 User Guide - Page 193
Mapping IP Precedence, Command Attributes, IP Precedence Priority Table, Class of Service Value
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3 Configuring the Switch Web - Click Priority, IP Precedence/DSCP Priority Status. Select Disabled, IP Precedence or IP DSCP from the scroll-down menu, then click Apply. Figure 3-89 IP Precedence/DSCP Priority Status CLI - The following example enables IP Precedence service on the switch. Console(config)#map ip precedence Console(config)# 4-204 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 7 6 5 4 Table 3-13 Mapping IP Precedence Traffic Type Priority Level Traffic Type Network Control 3 Flash Internetwork Control 2 Immediate Critical 1 Priority Flash Override 0 Routine 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. 3-150