Configuring Guard Interval for HE (High Efficiency)

Configuring Guard Interval for HE (High Efficiency)

Longer guard intervals improve link reliability for long range outdoor deployments and the feature like guard interval supports URWB stacks.

To configure a guard interval, use the following CLI command:

Device# configure dot11Radio [interface] guard-interval [gi]

gi - Guard interval values are:

1600 - To configure 1600 ns guard interval (supported only in HE mode)

3200 - To configure 3200 ns guard interval (supported only in HE mode)

400 - To configure 400 ns guard interval (supported in HT and VHT modes)

800 - To configure 800 ns guard interval (default guard interval mode and disable mode in HT, VHT, and HE)

Example:

Device# configure dot11Radio 1 high-efficiency enable
Device# configure dot11Radio 1 guard-interval 1600
Device# configure dot11Radio 1 guard-interval 3200
Device# wr
To validate a guard interval, use the following show commands:
Device# show dot11Radio 1 config
Maximum tx mcs: 9
High-efficiency : enabled
Maximum tx nss : 2
RTS protection : disabled
guard-interval : 1600 ns
Device# show dot11Radio 2 config
Maximum tx mcs: 9
High-efficiency : enabled
Maximum tx nss : 2
RTS protection : disabled
guard-interval : 3200 ns