User guide

Glossary
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Glossary
AAA
Authentication, Authorization and
Accounting
AAL5
ATM Adaptation Layer 5
Access Domain
A logical network handled by the OAM
system and defined by the approved IP-
addresses. One or more Access Domains
makes up an EDA network, which is a
switched Ethernet. An Access Domain is
managed by one Collection Station.
Access Provider
The Access Provider owns the physical
network, installs equipment and monitors
network status and provides the basis for
offering services to end-users.
Account Management
Account Management tracks usage of
services in the network in order to handle
billing or disable services for exceeded
accounting limits. See also FCAPS.
ADSL
Asymmetrical Digital Subscriber Line
ARP
Address Resolution Protocol. A method for
finding a host's Ethernet address from its
Internet address. An ARP request is sent to
the network naming the IP address; then the
machine with that IP address returns its
physical address so it can receive the
transmission.
ARP proxy
A function, embedded in an Ethernet
device, that answers ARP requests on
behalf of other devices. Used in switching
and bridging equipment to limit broadcast
traffic. Using one machine to respond to
ARP (Address Resolution Protocol)
requests for another machine.The proxy
machine routes transmission packets to the
proper destination.
ARP requests
Requests, broadcasted within Ethernets in
order to get MAC addresses to use for
transmission towards known IP addresses.
ATM
Asynchronous Transfer Mode. A network
technology that enables the transmission of
data, voice, audio, video, and frame relay
traffic in real time.
Backup Manager
A GUI client for handling backup of data in
the PEM system.
Baseband Telephony
Traditional analog telephony as supplied
from a local exchange. See also POTS.
Best Effort
A transport service, defined in IEEE 802.1Q
and normally used for transfer of data when
no special requirements to Quality of
Service (QoS) are specified.
BLES
Broadband Loop Emulation Service. A
method using ATM with AAL2 adaptation
layer encapsulation, recommended by ATM
Forum.
BRAS
Broadband Remote Access Server. A BRAS
is a multi-service access node to manage IP
service access for a large number of
subscribers. See also VLAN.