1813 VoIP Gateway User’s Guide
remote digital loopback test:
This test loops the remote digital receiver output back into the
transmitter input.
remote host:
The computer receiving the network commands.
RFC:
Request for Comments. Documents published by the Internet Engineering Task Force
pertaining to Internet protocols and policies.
RIP:
Routing Information Protocol. The protocol governing the exchange of routing
information.
RJ11:
A 6-position jack used with dial networks and telephone sets.
RJ45:
An 8-position jack used with programmable dial networks.
router:
Protocol-dependent device that connects subnets together. Routers operate at the
network layer (layer 3) of the ISO Open Systems Interconnection Reference Model.
routing table:
A table that lists routing paths to enable a node to route traffic to another node in
the network.
RS-232:
a low-speed, 25-position, DCE/DTE interface.
server:
Hardware or software that offers a specific service, such as database management, to a
client.
SHDSL:
Symmetric High Bit Rate Digital Subscriber Loop. A DSL technology that allows
symmetrical transmissions over longer distances. Defined by the G991.2 ITU standard.
SLA:
Service Level Agreement. A contract between a service provider and a customer, which
guarantees a minimum level or quality of service to the customer.
SMTP:
Simple Mail Transport Protocol. A protocol used to transfer e-mail between or among
servers.
SNMP agent:
An application program that enables communication between a management
system and a device.
SNMP trap:
A message sent to a SNMP manager to communicate information about changes
in the network, such as a device being reset.
SNMP:
Simple Network Management Protocol. Protocol for open networking management.
static route:
A route that is permanent rather than a route that is dynamically assigned by
another router.
STP:
Shielded Twisted Pair. Telephone wire that is wrapped in a sheath to eliminate external
interference.
subnet address:
The subnet portion of an IP address.
subnet mask:
A number that identifies the subnet portion of a network address. so that IP
addresses can be shared on a local area network.
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