3Com Switch 7750 Series
Command Reference Guide – QoS
Chapter 1 QoS Commands
1-30
Keyword
DSCP value (decimal)
DSCP value (binary)
cs3 24 011000
cs4 32 100000
cs5 40 101000
cs6 48 110000
cs7 56 111000
be (default)
0
000000
ip-precedence
pre-value
: Sets IP precedence. The
pre-value
argument ranges from 0
to 7. You can also enter the keywords in Table 1-9.
Table 1-9
Description on IP precedence values
Keyword
IP Precedence (decimal)
IP Precedence (binary)
routine 0
000
priority 1
001
immediate 2
010
flash 3
011
flash-override 4
100
critical 5
101
internet 6
110
network 7
111
cos
cos
: Sets 802.1p priority. The
pre-value
argument ranges from 0 to 7. You can also
enter the keywords in Table 1-10.
Table 1-10
Description on 802.1p priority values
Keyword
802.1p priority (decimal)
802.1p priority value
(binary)
best-effort 0
000
background 1
001
spare 2
010
excellent-effort 3
011
controlled-load 4
100
video 5
101
voice 6
110
