channel-width

The channel-width parameters defines channel width (20 MHz, 40 MHz or 80 MHz) used by the Smart RF radios in the assigned channel pool.

Supported in the following platforms:

Syntax

channel-width [2.4GHz|5GHz]

channel-width 2.4GHz [20MHz|40MHz|80Mhz|auto]

channel-width 5GHz [20MHz|40MHz|80MHz|auto]

Parameters

channel-width 2.4GHz [20MHz|40MHz|80MHz|auto]
2.4GHz [20MHz|40MHz|auto] Assigns the channel width for the 2.4 GHz band
  • 20MHz – Assigns the 20 MHz channel width. This is the default setting.
  • 40MHz – Assigns the 40 MHz channel width
  • 80MHz – Assigns the 80 MHz channel width
  • auto – Auto-selects the channel. Assigns the best possible channel in the 20 MHz, 40 MHz or 80 MHz channel width.
Note: The 80 MHz wide channel is only supported by the newer 802.11ac radios.
 
channel-width 5GHz [20MHz|40MHz|auto]
channel-width 5GHz [20MHz|40MHz|auto] Assigns the channel width for the 5.0 GHz band
  • 20MHz – Assigns the 20 MHz channel width.
  • 40MHz – Assigns the 40 MHz channel width. This is the default setting.
  • 80MHz – Assigns the 80 MHz channel width
  • auto – Auto-selects the channel. Assigns the best possible channel in the 20 MHz or 40 MHz or 80 MHz channel width.
Note: The 80 MHz wide channel is only supported by the newer 802.11ac radios. We recommend the use of default values, as the default parameters will support legacy 802.11a/b/g devices in addition to newer 802.11n/ac devices.

Usage Guidelines

The 20/40 MHz operation allows the access point to receive packets from clients using 20 MHz, and transmit using 40 MHz. This mode is supported for 802.11n users on both the 2.4 GHz and 5.0 GHz radios. If an 802.11n user selects two channels (a primary and secondary channel), the system is configured for dynamic 20/40 operation. When 20/40 is selected, clients can take advantage of wider channels. 802.11n clients experience improved throughput using 40 MHz while legacy clients (either 802.11a or 802.11b/g depending on the radio selected) can still be serviced without interruption using 20 MHz. Select auto to enable automatic assignment of channels to working radios to avoid channel overlap and avoid interference from external RF sources.

Examples

nx9500-6C8809(config-smart-rf-policy-test)#channel-width 2.4GHz auto

nx9500-6C8809(config-smart-rf-policy-test)#channel-width 5GHz auto

nx9500-6C8809(config-smart-rf-policy-test)#show context
smart-rf-policy test
 assignable-power 2.4GHz max 20
 assignable-power 2.4GHz min 8
 channel-list 2.4GHz 1,12
 channel-width 5GHz auto
 channel-width 2.4GHz auto
 area test channel-list 2.4GHz 1,2,3
 avoidance-time dfs 300
nx9500-6C8809(config-smart-rf-policy-test)#

Related Commands

no (smart-rf-policy-config-mode-command) Resets channel width for the selected frequency to its default
9036316-02 REV AB