Enterasys Networks 802.11 - Manual (Page 19)

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RoamAbout AP
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Dynamic address learning
The forwarding and translating process module automatically adds new source
addresses to the address database while the AP is operating. This reverse learning of
the address and port association allows automatic network configuration without prior
downline loading of configuration data to the AP. Address learning is protocol and
management entity independent.
An Aging Timer determines how long an address remains in the database. The timer
measures the time since data was last addressed to or from a particular node. If the
timer lapses without any traffic, the node’s address is removed from the database. The
Aging Timer interval can be modified by a Network Management System.
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Workgroup Bridge mode
In Workgroup Bridge mode, the AP communicates with wireless clients. The AP only
forwards packets to multicast addresses, broadcast addresses, and known addresses on
the wireless LAN.
The RoamAbout Access Point 2000 learns addresses only from the wireless side of the
network. The default Aging Timer interval is 32 minutes.
The RoamAbout R2 learns addresses from both the wired and wireless side. The
default Aging Timer interval is approximately 7 minutes.
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LAN-to-LAN Endpoint Bridge mode
In a Point-to-Point configuration, both APs are configured as Endpoints.
In this mode, the AP filters packets based upon their destination address and forwards
all packets with unknown addresses.
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LAN-to-LAN Multipoint Bridge mode
This mode is used where multiple APs are configured as dedicated wireless links
between LANs in a Point-to-Multipoint configuration. One AP must be designated as
the Central AP. The Central AP can communicate with up to six other APs configured
as Endpoints.
In this mode, the AP filters packets based upon their destination address and forwards
all packets with unknown addresses.
Refer to the Release Notes that shipped with your AP for a complete list of product features.
NOTE: You must purchase a valid activation key to enable Multipoint
bridge mode. Contact your Enterasys Representative.
NOTE