Rockwell Automation 1783-WAPxxx Stratix 5100 Wireless Access Point User Manual - Manual (Page 271)

Rockwell Automation Publication 1783-UM006A-EN-P - May 2014 271
Configuring Radio Settings Chapter 7
The performance cost of reliable multicast delivery, that is a duplication of each
multicast packet sent to each workgroup bridge—limits the number of
infrastructure devices, including workgroup bridges, that can associate to the
wireless access point. To increase beyond 20 the number of workgroup bridges
that can maintain a radio link to the wireless access point, the wireless access
point must reduce the delivery reliability of multicast packets to workgroup
bridges. With reduced reliability, the wireless access point cannot confirm
whether multicast packets reach the intended workgroup bridge, so workgroup
bridges at the edge of the wireless access point's coverage area can lose IP
connectivity. When you treat workgroup bridges as client devices, you increase
performance but reduce reliability.
A Cisco Aironet Workgroup Bridge provides a wireless LAN connection for up
to eight Ethernet-enabled devices.
This feature is not supported on the 5 GHz radio.
Beginning in privileged EXEC mode, follow these steps to configure the
encapsulation transformation method:
1. Enter global configuration mode.
configure terminal
2. Enter interface configuration mode for the 2.4 GHz radio interface.
interface dot11radio { 0 }
3. Enable reliable multicast messages to workgroup bridges.
infrastructure-client
4. Return to privileged EXEC mode.
end
5. (Optional) Save your entries in the configuration file.
copy running-config startup-config
Use the no form of the command to disable reliable multicast messages to
workgroup bridges.
TIP This feature is used with stationary workgroup bridges. Mobile
workgroup bridges can encounter spots in the wireless device's
coverage area where they don’t receive multicast packets and lose
communication with the wireless device even though they are still
associated to it.