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Roles and the Associations of Wireless Devices
Understanding Wireless Device Network Roles
Figure 6
Workgroup Bridge Mode
Access point
Workgroup bridge
To enable the router in workgroup-bridge mode:
wd(config)#interface dot11radio interfacenumber
wd(config-in)#station-role workgroup-bridge
The device to which a workgroup bridge associates can treat the workgroup bridge as an infrastructure
device or as a simple client device.
For increased reliability, set the infrastructure–client parameter on the access point or bridge to treat
the workgroup bridge as an infrastructure device. When a workgroup bridge is treated as an
infrastructure device, the access point reliably delivers multicast packets, which include Address
Resolution Protocol (ARP) packets to the workgroup bridge.
If an access point or bridge is configured to treat a workgroup bridge as a client device, more workgroup
bridges are allowed to associate to the same access point or to associate with use of a service set
identifier (SSID) that is not an infrastructure SSID.
The performance cost of reliable multicast delivery—in which the duplication of each multicast packet
is sent to each workgroup bridge—limits the number of infrastructure devices (including workgroup
bridges) that can associate to an access point or bridge. To increase the number of workgroup bridges
that can associate to the access point beyond 20, the access point must reduce the delivery reliability of
multicast packets to the workgroup bridges. With reduced reliability, the access point cannot confirm
that multicast packets reached the intended workgroup bridge. The workgroup bridges at the edge of the
access point coverage area might lose IP connectivity.
A WMIC configured in workgroup bridge mode can only associate to autonomous AP as infrastructure
Note
client. A WMIC configured as workgroup bridge mode can only associate to LWAPP AP in client mode.
Roles and the Associations of Wireless Devices
7
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