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Broadband Subscriber Management Solutions Terms and Acronyms
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AAA (authentication, authorization,
and accounting)—An IP-based networking system
that controls user access to computer resources and manages the activity
of users over a network.
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ASM (Any Source Multicast)—A method of allowing a multicast receiver to listen to all
traffic sent to a multicast group, regardless of its source.
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BSR (broadband services router)—A router used for subscriber management and edge routing.
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CoA (change of authorization)—RADIUS messages that contain information for dynamically changing
session authorizations.
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CoS (class of service)—A method of managing network traffic by grouping similar types
of traffic together and treating each traffic type as a “class”
with a defined service priority.
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DHCP (Dynamic Host Configuration
Protocol )—A networking protocol used by subscribers
to obtain the addressing information necessary for operation in an
Internet Protocol (IP) network.
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IGMP (Internet Group Membership
Protocol)—A host to router signaling protocol
for IPv4 used to support IP multicasting.
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IS-IS (Intermediate System-to-Intermediate
System)—A link-state, interior gateway routing
protocol (IGRP) for IP networks that uses the shortest-path-first
(SPF) algorithm to determine routes.
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LSP (label-switched path)—The path traversed by a packet that is routed by MPLS. Some
LSPs act as tunnels. LSPs are unidirectional, carrying traffic only
in the downstream direction from an ingress node to an egress node.
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MPLS (Multiprotocol Label Switching)—A mechanism for engineering network traffic patterns that
functions by assigning to network packets short labels that describe
how to forward the packets through the network.
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MSAN (Multiservice Access Node)—A group of commonly used aggregation devices including digital
subscriber line access multiplexers (DSLAMs) used in xDSL networks,
optical line termination (OLT) for PON/FTTx networks, and Ethernet
switches for Active Ethernet connections.
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Multiplay—A
networking paradigm that enables the ability to add new and robust
networking services that individual subscriber can access.
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OIF (outgoing interface)—An interface used by multicast functions within a router to
determine which egress ports to use for fowarding multicast groups.
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OSPF (Open Shortest Path First)—A link-state interior gateway protocol (IGP) that makes routing
decisions based on the shortest-path-first (SPF) algorithm (also referred
to as the Dijkstra algorithm).
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PIM (Protocol Independent Multicast)—A multicast routing protocol used for delivering multicast
messages in a routed environment.
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RADIUS (Remote Authentication
Dial In User Service)—A networking protocol that
provides centralized access, authorization, and accounting management
for subscribers to connect and use a network service.
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Residential gateway—A firewall, Network Address Translation (NAT) router, or other
routing device used as a customer premises equipment (CPE) terminator
in the home, office, or local point of presence (POP).
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SSM (single-source multicast)—A routing method that allows a multicast receiver to detect
only a specifically identified sender within a multicast group.
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set-top box—The
end host or device used to receive IPTV video streams.
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Triple play—A
networking paradigm that dedicates bandwidth to data, voice, and video
service.
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VOD (video on demand)—A unicast streaming video offering by service providers that
enables the reception of an isolated video session per user with rewind,
pause, and similar VCR-like capabilities.
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VSR (video services router)—A router used in a video services network to route video streams
between an access network and a metro or core network. The video services
router is any M-series or MX-series router that supports the video
routing package provided with JUNOS software Release 8.3 or later.
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