D-Link DWS-1008 User Manual
11
Session Load Balancing
You can assign access points to a load-balancing group. A load-balancing group helps reduce congestion
by distributing client sessions among the access points in the group. For example, if an 802.11b/g radio
operating on channel 1 is supporting more sessions than a neighboring 802.11b/g radio operating on
channel 6, the load-balancing feature can reject association requests to the radio on channel 1.
To balance the sessions, MSS rejects an association request for an access point’s radio if that radio
has at least four more active sessions than the radio of the same type with the least number of active
sessions within the group. If the rejected client associates with another access point in the same group,
the session load among the access points in the group becomes more balanced.
Load balancing is based only on association requests for new sessions. Adding an access point to a
group does not affect sessions that are already active on the access point. In addition, MSS does not
attempt to rebalance sessions when a client disassociates from an access point. If MSS rejects an
association request for load-balancing reasons but not for authentication reasons, the rejection does
not count as an authentication failure.
D-Link recommends that you configure small groups and ensure that all the radios in the group provide
comparable coverage within the same service area.
Service Profiles
A service profile controls advertisement and encryption for an SSID. You can specify the following:
• Whether SSIDs that use the service profile are beaconed
• Whether the SSIDs are encrypted or clear (unencrypted)
• For encrypted SSIDs, the encryption settings to use
• The fallthru authentication type for users that are not authenticated with 802.1X or MAC
authentication
The table below lists the parameters controlled by a service profile and their default values.
Parameter
Default Value
Radio Behavior When Parameter
Set To Default Value
attr
No attributes configured
Does not assign the SSID’s authorization attribute values to
SSID users, even if attributes are not otherwise assigned.
auth-dot1x
Enable
When the Wi-Fi Protected Access (WPA) information
element (IE) is enabled, uses 802.1X to authenticate WPA
clients.
auth-fallthru
None
Denies access to users who do not match an 802.1X or
MAC authentication rule for the SSID requested by the
user.
auth-psk
Disable
Does not support using a preshared key (PSK) to
authenticate WPA clients.
beacon
Enable
Sends beacons to advertise the SSID managed by the
service profile.
Summary of Contents for DWS-1008
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