interface-config-radio-instance
Configures the 802.11n guard interval. A guard interval ensures distinct transmissions do not interfere with one another. It provides immunity to propagation delays, echoes and reflection of radio signals.
The guard interval is the space between transmitted characters. The guard interval eliminates ISI (inter symbol interference). ISI which occurs when echoes or reflections from one symbol interferes with another. Adding time between transmissions allows echoes and reflections to settle before the next symbol is transmitted. A shorter guard interval results in shorter symbol times, which reduces overhead and increases data rates by up to 10%.
guard-interval [any|long]
guard-interval [any|long]
| guard-interval | Configures the 802.11n guard interval |
| any | Enables the radio to use any short (400nSec) or long (800nSec) guard interval |
| long | Enables the use of long guard interval (800nSec). This is the default setting. |
nx9500-6C8809(config-profile-510TestProfile-if-radio1)#guard-interval long nx9500-6C8809(config-profile-510TestProfile-if-radio1)#show context interface radio1 description "Primary radio to use" channel 1 data-rates b-only beacon period 50 beacon dtim-period bss 1 5 beacon dtim-period bss 2 2 beacon dtim-period bss 3 5 beacon dtim-period bss 4 5 beacon dtim-period bss 5 5 beacon dtim-period bss 6 5 beacon dtim-period bss 7 5 beacon dtim-period bss 8 5 beacon dtim-period bss 9 5 beacon dtim-period bss 10 5 beacon dtim-period bss 11 5 beacon dtim-period bss 12 5 beacon dtim-period bss 13 5 beacon dtim-period bss 14 5 beacon dtim-period bss 15 5 beacon dtim-period bss 16 5 antenna-gain 12.0 guard-interval long --More-- nx9500-6C8809(config-profile-510TestProfile-if-radio1)#
| no (radio-interface-config-command) | Resets the 802.11n guard interval to default (long: 800nSec) |
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