Lucent Technologies PortMaster - Manual (Page 337)

Glossary
Glossary-27
(2) In Multichassis PPP, the relationship between a master and slave. A peer is distinct
from a neighbor.
permanent virtual circuit
See PVC.
physical circuit
A physical connection between two devices.
ping
Packet Internet Groper. A program that is useful for testing and debugging networks. Ping
sends an ICMP echo packet to the specified host and waits for a reply. Ping reports success
or failure and sometimes statistics about its operation.
Point-to-Point Protocol
See PPP.
policy
In BGP, the rule or set of rules the PortMaster follows for accepting, injecting, and/or
advertising BGP routes to its BGP internal and external peers. You assign policies to a
peer when you add it to the PortMaster during configuration. You can use the default
policy easy-multihome, or create and assign your own policies. One policy can handle
all three functions, or you can create separate policies for acceptance, injection, and
advertisement. See also acceptance policy; advertisement policy; injection policy.
port
The physical channel or connection through which data flows.
port speed
The rate at which data is accepted by the port at the end of the wire. For example, when
a T1 line exists between a site and a telecommunications provider, the
telecommunications provider accepts only the number of bits per second ordered by the
customer into the port on its equipment. Upgrading port speed is generally a software
change.
PPP
Point-to-Point Protocol. A protocol that provides connections between routers and
between hosts and networks over synchronous and asynchronous circuits. See also SLIP.