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Cisco SD-WAN
Product Documentation
Viptela Documentation


wlan guard-interval—Specify the guard interval (on vEdge cellular wireless routers only). The guard interval allows reflections from the previous data transmission to settle before transmitting a new symbol.

vManage Feature Template

For vEdge cellular wireless routers only:

Configuration ► Templates ► WiFi Radio

Command Hierarchy

wlan radio-band
  guard-interval nanoseconds


Guard Interval
Set the guard interval. It can be one of the following values:
400—Short guard interval (SGI), which is 400 nanoseconds. The short guard interval can increase throughput, but it can also increase the error rate because of increased sensitivity to RF reflections. This is the default value for 5-GHz radio frequencies.
800—Normal guard interval, which is 800 nanoseconds. This is the default value for 2.4-GHz radio frequencies.


Explicitly configure the short guard interval for a 5-GHz radio band:

vEdge# show running-config wlan
wlan 5GHz
 channel 36
 guard-interval 400
 interface vap0
  ssid     tb31_pm6_5ghz_vap0
  no shutdown

Release Information

Command introduced in Viptela Software Release 16.3.​

Additional Information

See the Configuring IEEE 802.1X and IEEE 802.11i Authentication article for your software release.

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