Wifi Band specific options

Default values

config lime-wifi-band '2ghz'
	option channel '11'
	option htmode 'HT20'
	option distance '1000'
	option adhoc_mcast_rate '24000'
	option ieee80211s_mcast_rate '24000'

config lime-wifi-band '5ghz'
	list channel '48'
	list channel '157'
	option htmode 'HT40'
	option distance '10000'
	option adhoc_mcast_rate '6000'
	option ieee80211s_mcast_rate '6000'

2ghz

Configure all radios at 2ghz adding a section config lime-wifi-band '2ghz' in lime-node Settings in this section applies for all radios in 2ghz (or 5ghz) band. And take precedence over lime wifi section

config lime-wifi-band '2ghz'
    option channel '11'
    option htmode 'HT20'
    option distance '1000'                             
    option adhoc_mcast_rate '24000'
    option ieee80211s_mcast_rate '24000'

• htmode 'HT20' - htmode sets the width of the channel. HT40 should have better performances in non-noisy environments. Refer to the OpenWrt wiki: https://openwrt.org/docs/guide-user/network/wifi/basic#htmodewi-fi_channel_width
• distance '1000' # 1 km max distance, farther clients or peers will not be able to connect

5ghz

config lime-wifi-band '5ghz'
    list channel '48'                                   
    list channel '157'
    option htmode 'HT40'
    option distance '10000'                             
    option adhoc_mcast_rate '6000'
    option ieee80211s_mcast_rate '6000'

• channel 48 - May be either a list or a single option, in case of a list a channel for each radio will be selected according to radio index Check for allowed channels on https://en.wikipedia.org/wiki/List_of_WLAN_channels#regulatory_tables5.0ghz
• distance '10000' - Distance between this node/ap and the furthest connected node/client in meters, affects performances. If you are unsure of the right number, better to use a too-large distance here than a too-small one. Farther clients or peers will not be able to connect
• htmode 'HT40' - htmode sets the width of the channel. VHT80 should have better performances in non-noisy environment. Check out the valid channels list in this comment: https://github.com/libremesh/lime-packages/issues/647#issuecomment-1503968192 and refer to the OpenWrt wiki htmode: Wi-Fi channel width

Examples

Dual band

For networks where only dual band routers are used:

• the 5GHz radio can be reserved for the node-to-node connections.
• the 2.4Ghz radios can be reserved for access points.

config lime-wifi-band '5ghz'
    list modes 'ieee80211s'                                

config lime-wifi-band '2ghz'
    list modes 'ap'                                     
    list modes 'apname'