hub:--
A common connection point for devices in
a network. Hubs are commonly used to
connect segments of a LAN . A hub
contains multiple ports . When a packet
arrives at one port, it is copied to the
other ports so that all segments of the
LAN can see all packets.
A passive hub serves simply as a conduit
for the data, enabling it to go from one
device (or segment) to another. So-called
intelligent hubs include additional features
that enables an administrator to monitor
the traffic passing through the hub and to
configure each port in the hub. Intelligent
hubs are also called manageable hubs.
A third type of hub, called a switching
hub , actually reads the destination
address of each packet and then forwards
the packet to the correct port.
A common connection point for devices in
a network. Hubs are commonly used to
connect segments of a LAN . A hub
contains multiple ports . When a packet
arrives at one port, it is copied to the
other ports so that all segments of the
LAN can see all packets.
A passive hub serves simply as a conduit
for the data, enabling it to go from one
device (or segment) to another. So-called
intelligent hubs include additional features
that enables an administrator to monitor
the traffic passing through the hub and to
configure each port in the hub. Intelligent
hubs are also called manageable hubs.
A third type of hub, called a switching
hub , actually reads the destination
address of each packet and then forwards
the packet to the correct port.