MSM7xx Controllers Configuration Guide v6.4.0

An AP uses the following methods to encourage a wireless client to associate at 5 GHz instead
of 2.4 GHz.
• The AP waits 200 ms before responding to the first probe request sent by a client at 2.4
GHz.
• If the AP has learned that a client is capable of transmitting at 5 GHz, the AP refuses the
first association request sent by the client at 2.4 GHz.
• Once a client is associated at 5 GHz, the AP will not respond to any 2.4 GHz probes
from the client as long as the clients signal strength at 5 GHz is greater than -80 dBm
(decibel milliwatt). If the clients signal strength falls below -80 dBm, then the AP will respond
to 2.4 GHz probes from the client without delay.
NOTE:
• To support band steering, the VSC must be bound to APs with two radios (MSM422, HP
425, MSM430, MSM460, MSM466, or MSM466-R). One radio must be configured for
2.4 GHz operation and the other for 5 GHz operation.
• Band steering is temporarily suspended on an AP when the radio configured for 5 GHz
operation reaches its maximum number of supported clients.
Wireless clients
Settings
Max clients per radio
Specify the maximum number of wireless client stations that can be associated with this SSID
at the same time on each radio.
Allow traffic between nn wireless clients
Use this option to control how non-access-controlled wireless clients that are connected to the
same VSC can communicate with each other. The following settings are available:
• no: Blocks all inter-client communications.
• 802.1X: Only authenticated 802.1X clients can communicate.
• all: All authenticated and unauthenticated clients can communicate. Default setting.
• IPv6: Only authenticated clients using IP version 6 can communicate.
Communications between client stations connected to different non-access-controlled VSCs can
only occur if the clients are both assigned to the same VLAN. The easiest way to do this is to
assign the same VLAN to both VSCs using the Egress network option when binding the VSC
to an AP. A second option is to configure the same VLAN for the VSC egress mapping in each
VSC. Another method, is to dynamically assign the same VLAN to two different users via
RADIUS or the local user accounts. See “User-assigned VLANs” (page 221).
In addition, the following rules govern how traffic is exchanged:
• Unicast traffic exchanged between VSCs on the same radio is controlled by the setting of
either the sender's or the receiver's VSC.
• Unicast traffic exchanged between VSCs on different radios is controlled by the setting of
the sender's VSC.
• Multicast traffic exchanged between VSCs is always controlled by the setting of the senders
VSC.
VSC configuration options 119