Configuring MCS Rates
Table 1
MCS Index
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
The legacy rates are as follows:
5 GHz: 6, 9, 12, 18, 24, 36, 48, and 54 Mb/s
2.4 GHz: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mb/s
MCS rates are configured using the speed command. The following example shows a speed setting for
an 802.11g/n 2.4-GHz radio:
interface Dot11Radio0
no ip address
no ip route-cache
!
ssid 800test
!
speed basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m8.
m9. m10. m11. m12. m13. m14. m15.
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
270
Data Rates Based on MCS Settings, Guard Interval, and Channel Width
Guard Interval = 800 ns
20-MHz Channel
40-MHz Channel
Width Data Rate
Width Data Rate
(Mb/s)
(Mb/s)
6.5
13.5
13
27
19.5
40.5
26
54
39
81
52
109
58.5
121.5
65
135
13
27
26
54
39
81
52
108
78
162
104
216
117
243
130
270
Chapter
Configuring Radio Settings
Guard Interval = 400 ns
20-MHz Channel
40-MHz Channel
Width Data Rate
Width Data Rate
(Mb/s)
(Mb/s)
7 2/9
15
14 4/9
30
21 2/3
45
28 8/9
60
43 1/3
90
57 5/9
120
65
135
72 2/9
152.5
14 4/9
30
28 8/9
60
43 1/3
90
57 7/9
120
86 2/3
180
115 5/9
240
130
270
144 4/9
300