Sagem 4450E - Manual (Page 194)

SAGEM 3P@C
3P@C Installation Manual
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B. Glossary
This section gives a brief description of some terms.
Terms Definition
Backbone The network that serves as the main path for traffic transmission
between network segments.
Bandwidth Frequency bandwidth of the network channel, which usually means
the data transmission capability of the network channel.
10Base-T An abbreviated term in IEEE 802.3, which refers to the 10Mbps
Ethernet over Category-3 or better twisted pair based on
Manchester signal coding.
100Base-TX An abbreviated term in IEEE 802.3, which refers to the 100Mbps
fast Ethernet over two Category-5 twisted pairs based on 4B/5B
signal coding.
100Base-FX An abbreviated terminology as given in IEEE 802.3, indicating 100
Mbps fast Ethernet over optical fiber cables based on 4B/5B signal
coding.
1000Base-LX An abbreviated terminology as given in IEEE 802.3, indicating 1000
Mbps Ethernet over the long wavelength optical fibers based on
8B/10B signal coding.
1000Base-SX An abbreviated terminology as given in IEEE 802.3, indicating
1000Mbps Ethernet over short wavelength optical fibers based on
8B/10B signal coding.
Auto
negotiation The auto negotiation mode means the interface automatically
adjusts its speed to the highest public level, that is, the fastest
possible speed and duplex mode between the two ends of the line,
according to the connection rate and duplex mode of the equipment
on the other end.
Full-duplex A communication method, which permits simultaneously receiving
and sending data.
Semi-duplex A communication method, which only permits either data sending or
receiving at a moment.
Collision Normal event on the Ethernet in semi-duplex working mode, which
indicates two or more sites access the same channel
simultaneously.
Broadcast
storm A large amount of broadcast frames on the Ethernet causes network
congestion and thus leads to network failure.
RJ-45 A kind of 8-pin module connector for twisted pair links.
MDI Medium-related interface, which is the name of the connector for
establishing physical and electrical connections between the
transceiver and medium segments.
MDIX Crossed medium-related interface, which sends the signal from one
equipment to the signal-receiving side of the other equipment and
vise versa.
SNMP Simple Network Management Protocol
STP Spanning Tree Protocol
VLAN Virtual LAN