Lucent Technologies SLC ConnectReach User & Service Manual page 527

Glossary 363-208-050
O
OAM&P — Operations, Administration, Maintenance, and Provisioning.
Off-Hook — Off-hook condition indicates that the circuit is in the active state (that is, busy). The opposite
condition is on-hook (idle).
Outgoing — A call that comes from a user on the SLC ConnectReach system to the CO.
P
Packet Filtering — The recognition and selective transmission or blocking of bundles of data based on
destination addresses or other packet contents.
PAT — Port Address Translation. Allows users on thepublic (WAN) side of a network to access spesific
applications or services on the private (LAN) side of the network.
Pattern — One or more sequences separated by " " followed by an optional time-out. Example: 92[2-3]
|, |
95x matches 922, or 923, or 950, or 951...959.
PBX — Private Branch Exchange. A customer telephone system that emulates a carrier branch exchange
office.
PCV — Path Coding Violations. A count of frame synchronization bit errors in D4 format, or CRCs in the
ESF format.
Ping — A command that sends an ICMP echo packet to a node on an IP network. The target node (if
operational) returns an ICMP response packet to the originator. Commonly used to indicate that both the
target node and the network path to it are functioning properly.
POP — Post Office Protocol. A protocol used to retrieve e-mail from a mail server. POP2 requires simple
mail transfer protocol (SMTP) to send messages whereas, POP3 can be used with or without SMTP.
PPP — Point-to-Point Protocol. A protocol that allows a computer to connect to a remote network or device
over either a synchronous interface or a standard dial-up telephone line and modem.
PRI — Primary Rate Interface. PRI in the United States provides 23 B-channels with a D-channel
transmitting at 1.544 Mb/s. European PRI has 30 B-channels with a D-channel and transmits at
2.048 Mb/s. Also, Priority/Severity field for syslog messages.
GL-9
Issue 4 June 2002