SMC Networks SMC TigerStack III SMC6824MPE - Manual (Page 236)

C
ONFIGURING THE
S
WITCH
3-186
Web – Click Priority, IP Precedence/DSCP Priority Status. Select
Disabled, IP Precedence or IP DSCP from the scroll-down menu.
Figure 3-82 IP Precedence/DSCP Priority Status
CLI – The following example enables IP Precedence service on 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.
Console(config)#map ip precedence 4-253
Console(config)#
Table 3-13 Mapping IP Precedence
Priority
Level
Traffic Type Priority
Level
Traffic Type
7 Network Control 3 Flash
6 Internetwork Control 2 Immediate
5 Critical 1 Priority
4 Flash Override 0 Routine