Руководство По Проектированию для Cisco Cisco Cius Wi-Fi
Cisco Cius Wireless Deployment Guide
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Cisco Cius has a single antenna, therefore it supports up to MCS 7 data rates for 802.11n connectivity (up to 72 or 150 Mbps
depending on the channel width utilized).
MCS 8 - MCS 15 rates can be left enabled for other 802.11n clients, which are utilizing the same band frequency and utilize
MIMO (multiple input / multiple output) antenna technology, which can take advantage of those higher rates.
If 802.11b clients are not allowed in the wireless network, then it is strongly recommended to disable the data rates below 12
Mbps. This will eliminate the need to send CTS frames for 802.11g protection as 802.11b clients can not detect these OFDM
frames.
When 802.11b clients exist in the wireless network, then an 802.11b rate must be enabled and only an 802.11b rate can be
configured as a mandatory / basic rate. In this case, is suggested to enable the data rates 11 Mbps and higher.
The recommended data rate configurations are the following:
depending on the channel width utilized).
MCS 8 - MCS 15 rates can be left enabled for other 802.11n clients, which are utilizing the same band frequency and utilize
MIMO (multiple input / multiple output) antenna technology, which can take advantage of those higher rates.
If 802.11b clients are not allowed in the wireless network, then it is strongly recommended to disable the data rates below 12
Mbps. This will eliminate the need to send CTS frames for 802.11g protection as 802.11b clients can not detect these OFDM
frames.
When 802.11b clients exist in the wireless network, then an 802.11b rate must be enabled and only an 802.11b rate can be
configured as a mandatory / basic rate. In this case, is suggested to enable the data rates 11 Mbps and higher.
The recommended data rate configurations are the following:
802.11 Mode
Mandatory (Basic)
Data Rates
Supported (Optional)
Data Rates
Disabled
Data Rates
802.11a /n
12 Mbps
18-54 Mbps,
MCS 1 - MCS 7
(MCS 8 - MCS 15)
MCS 1 - MCS 7
(MCS 8 - MCS 15)
6, 9 Mbps,
MCS 0
MCS 0
802.11g/n
12 Mbps
18-54 Mbps,
MCS 1 - MCS 7
MCS 1 - MCS 7
(MCS 8 - MCS 15)
1, 2, 5.5, 6, 9, 11 Mbps,
MCS 0
MCS 0
802.11b/g/n
11 Mbps
12-54 Mbps,
MCS 1 - MCS 7
(MCS 8 - MCS 15)
MCS 1 - MCS 7
(MCS 8 - MCS 15)
1, 2, 5.5, 6, 9 Mbps,
MCS 0
MCS 0
802.11a
12 Mbps
18-54 Mbps
6, 9 Mbps
802.11g
12 Mbps
18-54 Mbps
6, 9 Mbps
802.11b/g
11 Mbps
12-54 Mbps
1, 2, 5.5, 6, 9 Mbps
802.11b
11 Mbps
None
1, 2, 5.5 Mbps
For a voice only application, data rates higher than 24 Mbps (36, 48 and 54 Mbps) can optionally be enabled or disabled, but
there is no advantage from a capacity or throughput perspective and enabling these rates could potentially increase the number
of retries for a data frame.
If deploying in an environment where excessive retries may be a concern, then a limited set of the data rates can be used (e.g.
12, 24, 54, MCS 1, MCS 4, MCS 7), where the lowest enabled rate is the mandatory / basic rate.
For rugged environments or deployments requiring maximum range, it is recommended to enable 6 Mbps as a mandatory /
basic rate.
To preserve high capacity and throughput, data rates of 24 Mbps and higher only can be enabled (24-54 Mbps, MCS 3 - MCS
7).
If using other applications like video or virtual desktop, then it is recommended to enable these higher data rates including
802.11n rates (MCS 1 - MCS 15).
Note: Some environments may require that a lower data rate be enabled due to use of legacy clients, environmental factors or
maximum range is required.
Set only the lowest data rate enabled as the single mandatory / basic rate. Multicast packets will be sent at the highest
mandatory / basic data rate enabled.
Note that capacity and throughput are reduced when lower rates are enabled.
there is no advantage from a capacity or throughput perspective and enabling these rates could potentially increase the number
of retries for a data frame.
If deploying in an environment where excessive retries may be a concern, then a limited set of the data rates can be used (e.g.
12, 24, 54, MCS 1, MCS 4, MCS 7), where the lowest enabled rate is the mandatory / basic rate.
For rugged environments or deployments requiring maximum range, it is recommended to enable 6 Mbps as a mandatory /
basic rate.
To preserve high capacity and throughput, data rates of 24 Mbps and higher only can be enabled (24-54 Mbps, MCS 3 - MCS
7).
If using other applications like video or virtual desktop, then it is recommended to enable these higher data rates including
802.11n rates (MCS 1 - MCS 15).
Note: Some environments may require that a lower data rate be enabled due to use of legacy clients, environmental factors or
maximum range is required.
Set only the lowest data rate enabled as the single mandatory / basic rate. Multicast packets will be sent at the highest
mandatory / basic data rate enabled.
Note that capacity and throughput are reduced when lower rates are enabled.