A wireless LAN bridge plugs into this Ethernet network and uses the 802.11 protocol to communicate with an access point that’s within range. This may be necessary if you have a few devices, possibly in a far reaching part of the facility, that are interconnected via Ethernet. ![]() For example, a wireless LAN bridge can interface an Ethernet network directly to a particular access point. The access point here is similar to a bridge device, but the access point interfaces a network to multiple users, not other networks.īridges, though, connect networks and are often less expensive than access points. Each of these users has access to the Ethernet network and to each other. For example, 20 users equipped with 802.11 network interface cards (NICs) may associate with a single access point that connects to an Ethernet network. Access PointsĪccess points connect multiple users on a wireless LAN to each other and to a wired network. Learning bridges also age address table entries by deleting addresses that have not been heard from for a specified amount of time. This increases efficiency because the bridge will not re-transmit a packet if it knows that the destination address is on the same side of the bridge as the sending address. A learning bridge, which is more common, examines the destination address of every packet to determine whether it should forward the packet based on a decision table that the bridge builds over time. Some bridges re-transmit every packet on the opposite port whether or not the packet is heading to a station located on the opposite network.
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