Glossary, Lossary – 3Com 1100 User Manual

Page 233

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LOSSARY

10BASE-T

The IEEE specification for 10Mbps Ethernet over Category 3, 4 or 5
twisted pair cable.

100BASE-FX

The IEEE specification for 100Mbps Fast Ethernet over fiber-optic cable.

100BASE-TX

The IEEE specification for 100Mbps Fast Ethernet over Category 5
twisted-pair cable.

1000BASE-T

The IEEE specification for Gigabit Ethernet over Category 5 twisted-pair
cable.

1000BASE-SX

The IEEE specification for Gigabit Ethernet over a multimode fiber-optic
cable.

ageing

The automatic removal of dynamic entries from the Switch Database
which have timed-out and are no longer valid.

auto-negotiation

A feature on twisted pair ports that allows them to advertise their
capabilities for speed, duplex and flow control. When connected to a
port that also supports auto-negotiation, the link can automatically
configure itself to the optimum setup.

backbone

The part of a network used as a primary path for transporting traffic
between network segments.

bandwidth

The information capacity, measured in bits per second, that a channel
can transmit. The bandwidth of Ethernet is 10Mbps, the bandwidth of
Fast Ethernet is 100Mbps.

baud

The signalling rate of a line, that is, the number of transitions (voltage
or frequency changes) made per second. Also known as line speed.

BOOTP

The BOOTP protocol allows you to automatically map an IP address to a
given MAC address each time a device is started. In addition, the
protocol can assign the subnet mask and default gateway to a device.

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