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Glossary
Glossary-28 PortMaster Configuration Guide
PRI
Primary Rate Interface. The ISDN interface to primary rate access. Primary rate access
consists of a single 64Kbps D channel plus 23 (T1) or 30 (E1) 64Kbps B channels for voice
or data. Compare BRI.
Primary Rate Interface
See PRI.
propagation
The process of translating and forwarding routes from one routing protocol into another.
Route propagation is also known as route
redistribution
. Lucent Remote Access
recommends using route filters in propagation rules to ensure that you redistribute
information without creating routing loops. Compare summarization.
provisioning
The process of supplying telecommunications service and equipment to a user. In ISDN
provisioning, for example, a telephone service provider configures its own switch that
connects via an ISDN line to the user's ISDN hardware. Because switch configuration
varies according to hardware, telephone company, switch, and available ISDN line, user
and provider must work together to establish the correct settings.erc
proxy Address Resolution Protocol
See proxy ARP.
proxy ARP
Proxy Address Resolution Protocol. A variation of the ARP protocol in which a router or
other device sends an ARP response to the requesting host on behalf of another node.
Proxy ARP can reduce the use of bandwidth on slow-speed WAN links. See also ARP.
PVC
Permanent virtual circuit. A circuit that defines a permanent connection in a switched
digital service such as Frame Relay. Frame Relay is the only switched digital service that
uses PVCs supported by PortMaster products.
R
RADIUS
Remote Authentication Dial-In User Service. A client/server security protocol created by
Lucent.