User`s guide

Glossary
GL-2
8000-A2-GB21-10
June 1997
Integrated Services Digital Network.
Internet Service Provider.
Local Area Network. Any physical network technology designed to span short distances.
Media Access Control Address. Areas of memory your CPU uses to distinguish between
the various peripheral devices connected to your system when transferring or receiving
data. The MAC address is also known as the physical address.
Management Communications Controller Card. The card in a HotWire DSLAM system or
stack that is used primarily for monitoring and configuring the HotWire DSLAM.
Management Information Base. A collection of information (e.g., configuration, status, and
statistical data) within an SNMP agent that forms a database of information about the
agent which is accessible from the NMS manager. MIB II is the current standard.
A system with connections to two or more logical networks, which may be assigned to one
or more physical networks.
Network Access Provider. The NAP provides a transit network service permitting
connection of service subscribers to Network Service Providers (NSPs). The NAP is
typically the network provider (e.g., a Regional Bell Operating Company, an Alternate
Local Exchange Carrier) that has access to the copper twisted pairs over which the DSLs
operate.
Network Interface Device. An electronic device that connects the telephone line and POTS
splitter to the telephone network.
Network Management System. An NMS communicates to a Simple Network Management
Protocol (SNMP) agent via SNMP to obtain (get) or configure (set) specific parameters or
variables within control of the SNMP agent (e.g., DCE Manager).
Network Service Provider. NSPs can be either public data network providers (i.e., Internet
Service Providers) or private data network providers (i.e., corporate intranets) who provide
network services based on the Internet Protocol (IP). In some cases, the NSP and the
NAP can be a single network provider.
Used in this document to refer to a block of data sent across an IP switching network.
An IP-based application used to test reachability of destinations by sending an ICMP echo
request and waiting for a reply. The ping program is supported from both the DSL and
MCC cards.
Point of Presence. The POP is the access point to the Network Access Provider network
for a Network Service Provider (NSP). The NSP is typically connected to the POP across
an access link that terminates on a router on the NSP premises.
Plain Old Telephone Service.
A device that filters out the DSL signal and allows the POTS frequencies to pass through.
This device can be installed at the Central Office or Customer Premises.
Point-to-Point Protocol. A protocol for framing IP when sending across a serial line.
Proxy Address Resolution Protocol (ARP). The technique in which one machine, usually a
router, answers ARP requests intended for another by supplying its own physical address.
By pretending to be another machine, the router accepts responsibility for forwarding
packets. The purpose of proxy ARP is to allow a site to use a single IP network address
with multiple physical networks.
Rate Adaptive Digital Subscriber Line.
A special purpose, dedicated computer that attaches to two or more networks and
forwards packets from one to the other.
ISDN
ISP
LAN
MAC Address
MCC Card
MIB
multihomed system
NAP
NID
NMS
NSP
Packet
Ping
POP
POTS
POTS Splitter
PPP
Proxy ARP
RADSL
Router