2011 Maipu Communication Technology Co., Ltd, All Rights Reserved
41
standard.
Auto-negotiation
Auto-negotiation (formerly NWay) is an Ethernet procedure
by which two connected devices choose common
transmission parameters, such as speed and duplex mode. In
this process, the connected devices first share their
capabilities as for these parameters and then choose the
fastest transmission mode they both support.
QoS Quality of Service
HOL
Head-Of-Line. HOL arises when packets arriving at different
input ports are destined for the same output port.
full duplex
Capability for simultaneous data transmission between a
sending station and a receiving station.
half duplex
Capability for data transmission in only one direction at a time
between a sending station and a receiving station. BSC is an
example of a half-duplex protocol.
MDI
A medium dependent interface (MDI) port or an uplink port is
an Ethernet port connection typically used on the Network
Interface Card (NIC) or Integrated NIC port on a PC.
MDIX
Medium dependent interface crossover (MDIX) (the “X”
representing “crossover”) is a female RJ-45 port connection
on a computer, router, hub, or switch. Straight through cables
connect pins 1 & 2 (transmit) on an MDI device to pins 1 & 2
(receive) on an MDIX device.
RJ-45
The 8 Position 8 Contact (8P8C) (often called RJ45 see
below) modular plugs and sockets are communications
connectors.
Bridge
Device that connects and passes packets between two
network segments that use the same communications
protocol. Bridges operate at the data link layer (Layer 2) of
the
OSI reference model. In general, a bridge filters, forwards, or
floods an incoming frame based on the MAC address of that
frame.
SNMP Simple Network Management Protocol
Appendix 3 Cable
RJ-45 Connector
To Next Page
Loading...
Need help?
General
