User guide

Glossary
GL-7
Alvarion
collisions detected on a particular interface later than 512 bit-times into the
transmission of a packet.
See also: AP Manager Remote Statistics
P
Packets received/lost
The ‘Packets received/lost’ counter displays the percentage of packets received
relative to the number of packets expected. The ‘packets received/lost’ counter is
only displayed when you select the View Details option.
See also: Client Manager Link Test
Path cost
An advanced Bridge Setup parameter for Base Station that is used to determine the
preferred data paths between bridges throughout the network and the root bridge as
calculated by the ‘Spanning Tree Algorithm.
The ‘Root Bridge’ transmits BPDU messages throughout the Local Area Network.
When a bridge unit receives a BPDU message at one of its ports, it will add the
value in the “Path Cost” field for that port to the value in the ‘root path cost field’ of
the BPDU message prior to forwarding the message again. This will help the other
bridges to determine the ‘Total Path Cost’ to the Root Bridge via this port.
A lower ‘Path Cost’ value would typically be used for ports to LAN segments closer
to the Root Bridge. A higher ‘Path Cost’ value would typically be used for ports to
LAN segments that are ‘the leafs’ of the Spanning Tree.
For example, when you use the Base Station as an access point for wireless
stations to the Ethernet, a high ‘Path Cost’ for the BreezeNET port will minimize
unnecessary use of the bandwidth for the wireless medium (recommended value
500).
When you use Base Station units in a wireless point-to-point link to interconnect two
LAN segments, a low ‘Path Cost’ for the BreezeNET port will prioritize this link as
compared to other physical links, such as a leased line or low-bandwidth
connections.
Valid values: 0-255. Initial value: ‘100’
Peer-to-Peer Workgroup
A stand-alone workgroup of wireless stations which participate in a small (Peer-to-
Peer) network. This is typically a BreezeNET network configuration without Base
Stations that could connect the stations into a network infrastructure.
The stations must be configured to operate in Peer-to-Peer mode.
Point-to-Point Link
A wireless connection between two or more remote locations, such as multiple
buildings on a campus location.
In (outdoor) point-to-point link configurations, you will typically use two or more Base
Station units that have been equipped with BreezeNET Range Extender Antenna
and external antennas.
The wireless interfaces on both ends of the antenna link must be configured with an
identical NWID.