Nortel Passport 4400, Using Manual, Page: 134 / 144

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QoS
Quality of Service. A series of service classes which reflects the traffic
importance and urgency over a particular connection.
remote access
Referring to a system, application, or device that must be accessed through a
network.
RFC 1490
Request for Comments 1490. An IETF protocol for encapsulation of network
interconnect traffic (bridging and routing) over a Frame Relay backbone.
ring-down
A configuration option for FXS channels. Causes the local telephone to ring
when the remote telephone is lifted off-hook, or vice versa.
RIP
Routing Information Protocol. A protocol that describes how routers
exchange their routing tables with neighboring routers.
routing
The process of moving a packet of data from source to destination, usually
performed by a dedicated device called a router. Routing enables messages to
pass from one computer to another and eventually reach a target machine.
Each intermediary computer performs routing by passing along the message
to the next computer. Part of this process involves analyzing a routing table to
determine the best path.
RS-232
A standard interface approved by the Electronic Industries Association (EIA)
for connecting serial devices. The EIA-232 standard supports two types of
connectors: a 25-pin D-type connector (DB-25) and a 9-pin D-type connector
(DB-9).
RSA
Remote Server Agent. An entry point for applications requiring access to
Passport 6400 servers. The RSA provides access to the Voice Networking Call
Server (VNCS) for Passport 4400-based applications.