Configuring Guard Interval for HE (High Efficiency )

Configuring Guard Interval for HE

Longer guard intervals improve link reliability for longer range outdoor deployments and this features like guard interval supports URWB stacks.

To configure a guard interval, use the following CLI commands.

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

gi will be one of the following values

1600 - Configure 1600 ns guard intervasl (only in HE mode)

3200 - Configure 3200 ns guard interval (only in HE mode)

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

800 - Configure 800 ns guard interval (default guard interval mode and disabled mode in HT, VHT, 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 CLI 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