Network Topologies

Infrastructure Wireless Bridge

The IEEE 802.11 standard defines a Wireless Distribution System (WDS) for bridge connections between BSS areas (access points). The access point uses WDS to forward traffic on links between units.

The access point supports WDS bridge links on either the 5 GHz (802.11a) or 2.4 GHz (802.11b/g) bands and can be used with various external antennas to offer flexible deployment options. Up to six WDS bridge links can be specified for each unit in the wireless bridge network. One unit only must be configured as the “root bridge” in the wireless network. The root bridge should be the unit connected to the main core of the wired LAN. Other bridges must configure one “parent” link to the root bridge or to a bridge connected to the root bridge. The other five available WDS links can be specified as “child” links to other bridges. This forms a tiered‐star topology for the wireless bridge network. When using WDS on a radio band, only wireless bridge units can associate to each other. Wireless clients can only associate with the access point using a radio band set to access point.

Figure 2-4 Infrastructure Wireless Bridge

Network

Wireless Bridge Links

Core

Betweeen Access Points

802.11g Radio

Root Bridge

AP Link

 

802.11a Radio

Bridge Link

802.11g Radio

Bridge

AP Link

 

802.11a Radio

 

Bridge Link

 

802.11g Radio

Bridge

AP Link

 

802.11a Radio

Bridge Link

 

802.11g Radio

Bridge

AP Link

RoamAbout RBT-4102 Wireless Access Point Configuration Guide 2-5

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Enterasys Networks RBT-4102 manual Infrastructure Wireless Bridge