Dell 6.2 manual Μsec, 2 µsec, 4 µsec, Mode Enabled by default, Degrade throughput

Parameter	Description
	microseconds. Allowed values: 0 (No restriction on MDPU start spacing), .25 µsec, .5 µsec,
	1 µsec, 2 µsec, 4 µsec.
Short guard interval in 20 MHz	Enable or disable use of short (400ns) guard interval in 20 MHz mode. This parameter is
mode	enabled by default.
	A guard interval is a period of time between transmissions that allows reflections from the
	previous data transmission to settle before an AP transmits data again. An AP identifies
	any signal content received inside this interval as unwanted inter-symbol interference,
	and rejects that data. The 802.11n standard specifies two guard intervals: 400ns (short) and
	800ns (long). Enabling a short guard interval can decrease network overhead by reducing
	unnecessary idle time on each AP. Some outdoor deployments, may, however require a
	longer guard interval. If the short guard interval does not allow enough time for reflections
	to settle in your mesh deployment, inter-symbol interference values may increase and
	degrade throughput.
Short guard interval in 40 MHz	Enable or disable use of short (400ns) guard interval in 40 MHz mode. This parameter is
mode	enabled by default.
	A guard interval is a period of time between transmissions that allows reflections from the
	previous data transmission to settle before an AP transmits data again. An AP identifies
	any signal content received inside this interval as unwanted inter-symbol interference,
	and rejects that data. The 802.11n standard specifies two guard intervals: 400ns (short) and
	800ns (long). Enabling a short guard interval can decrease network overhead by reducing
	unnecessary idle time on each AP. Some outdoor deployments, may, however require a
	longer guard interval. If the short guard interval does not allow enough time for reflections
	to settle in your mesh deployment, inter-symbol interference values may increase and
	degrade throughput.
Supported MCS set	A list of Modulation Coding Scheme (MCS) values or ranges of values to be supported on
	this SSID. The MCS you choose determines the channel width (20MHz vs. 40MHz) and the
	number of spatial streams used by the mesh node.
	The default value is 1–23; the complete set of supported values. To specify a smaller range
	of values, enter a hyphen between the lower and upper values. To specify a series of
	different values, separate each value with a comma.
	Examples:
	2–10
	1,3,6,9,12
	Range: 0–23.

Assigning a Profile to an AP Group

1.Navigate to the Configuration > Wireless > AP Configuration window. Select either the AP Group or AP Specific tab.

• If you selected AP Group, click the Edit button by the AP group name to which you want to assign a new high-throughput SSID profile.

• If you selected AP Specific, click the Edit button by the AP to which you want to assign a new high- throughput SSID profile

2.Under the Profiles list, expand the Mesh menu, then select Mesh High-throughput SSID profile.

3.In the Profile Details window pane, click the Mesh High-throughput SSID profile drop-down list and select the desired profile from the list.

4.Click Apply. The profile name appears in the Mesh High-throughput SSID Profile list with your configured settings. If you configure this for the AP group, this profile also becomes the selected high-throughput SSID profile used by the mesh portal for your mesh network.

Dell PowerConnect W-Series ArubaOS 6.2 User Guide Secure Enterprise Mesh 457