Allied Telesis OmniConnect/ISDN, Руководство пользователя

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OmniConnect / ISDN
User’s Manual Page 76
Part number 613-10787-00
An Ethernet address, sometimes referred to as an IEEE MAC address, is assigned to every Ethernet
hardware device. Ethernet MAC addresses are 48 bits long, and are usually expressed as 12 character
hexadecimal numbers, where each hexadecimal character (0 through F) represents four binary bits. All
OmniConnect access devices have an Ethernet MAC address that begins with 00-10-98.
Firmware
Software stored in the access device’s memory that is used to run and control the access device. The
OmniConnect’s firmware can be updated.
Gateway
A device that connects two or more networks those use different protocols (for example, TCP/IP and IPX
or Ethernet and Token Ring). In the context of this manual, Gateways are devices to which client PCs send
their data destined for the Internet, i.e., the OmniConnect access device.
Host
A single, addressable device on a network. Client PCs, networked printers, and access devices are hosts.
Internet
In the context of this document, a large, multi-organizational collection of IP networks that allows
applications such as HTTP, FTP, etc. to run.
IP Address
A 32-bit number assigned by the system administrator that is used by the IP protocol for addressing
purposes. The IP address is written in the form of 4 decimal fields separated by periods, e.g., 192.168.1.1.
All machines on a given IP network have a unique IP Address.
IP - Internet Protocol
In the context of this manual, IP is used cover all packets and networking operations that include the use of
the Internet Protocol.
ISDN – Integrated Services Digital Network
ISDN is a method of transmitting data digitally over telephone lines. In the context of this manual, ISDN
provides a data rate of 128 KBPS comprised of two 64 KBPS Bearer channels and one 16 KBPS Data
channel.
ISP -Internet Service Provider
A company that provides Internet-related access services such as an IP address, logins and access to the
World Wide Web.
LAN - Local Area Network
A network used to connect geographically local clients and servers such as Ethernet.
Modem
A device used to convert digital signals from a computer into analog signals that can be transmitted across
standard analog telephone lines. Modem is a contraction of modulator-demodulator.
ML-PPP – Multi-Link Point to Point Protocol
A protocol for framing IP packets and transmitting them over multiple serial line and providing channel
bonding services to increase total throughput.
NAT