Ip Precedence And Dscp Values - Cisco 7604 Configuration Manual

Configuring PFC QoS
Within each range, PFC QoS programs the PFC with token bucket sizes that are multiples of the
granularity values.

IP Precedence and DSCP Values

3-bit IP
Precedence
0
1
2
3
1. MSb = most significant bit
Configuring PFC QoS
These sections describe how to configure PFC QoS on the Cisco 7600 series routers:
•
•
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
41-56
1
6 MSb of ToS
8 7 6 5 4 3
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 1 0
0 0 0 0 1 1
0 0 0 1 0 0
0 0 0 1 0 1
0 0 0 1 1 0
0 0 0 1 1 1
0 0 1 0 0 0
0 0 1 0 0 1
0 0 1 0 1 0
0 0 1 0 1 1
0 0 1 1 0 0
0 0 1 1 0 1
0 0 1 1 1 0
0 0 1 1 1 1
0 1 0 0 0 0
0 1 0 0 0 1
0 1 0 0 1 0
0 1 0 0 1 1
0 1 0 1 0 0
0 1 0 1 0 1
0 1 0 1 1 0
0 1 0 1 1 1
0 1 1 0 0 0
0 1 1 0 0 1
0 1 1 0 1 0
0 1 1 0 1 1
0 1 1 1 0 0
0 1 1 1 0 1
0 1 1 1 1 0
0 1 1 1 1 1
Enabling PFC QoS Globally, page 41-57
Enabling Ignore Port Trust, page 41-58
6-bit 3-bit IP
DSCP Precedence
0 4
1
2
3
4
5
6
7
8 5
9
10
11
12
13
14
15
16 6
17
18
19
20
21
22
23
24 7
25
26
27
28
29
30
31
Chapter 41
1
6 MSb of ToS 6-bit
DSCP
8 7 6 5 4 3
1 0 0 0 0 0 32
1 0 0 0 0 1 33
1 0 0 0 1 0 34
1 0 0 0 1 1 35
1 0 0 1 0 0 36
1 0 0 1 0 1 37
1 0 0 1 1 0 38
1 0 0 1 1 1 39
1 0 1 0 0 0 40
1 0 1 0 0 1 41
1 0 1 0 1 0 42
1 0 1 0 1 1 43
1 0 1 1 0 0 44
1 0 1 1 0 1 45
1 0 1 1 1 0 46
1 0 1 1 1 1 47
1 1 0 0 0 0 48
1 1 0 0 0 1 49
1 1 0 0 1 0 50
1 1 0 0 1 1 51
1 1 0 1 0 0 52
1 1 0 1 0 1 53
1 1 0 1 1 0 54
1 1 0 1 1 1 55
1 1 1 0 0 0 56
1 1 1 0 0 1 57
1 1 1 0 1 0 58
1 1 1 0 1 1 59
1 1 1 1 0 0 60
1 1 1 1 0 1 61
1 1 1 1 1 0 62
1 1 1 1 1 1 63
Configuring PFC QoS
OL-4266-08