Nortel 7 - Page 170

170 Glossary
NN46110-500
Point-to-Point Protocol (PPP)
A protocol that provides a method for transmitting packets over serial
point-to-point links.
Point-to-Point Tunneling Protocol (PPTP)
A tunneling protocol that is used as a security tool.
port
A transport layer demultiplexing value. Each application has a unique port
number associated with it.
private default route
The default routes that are used for traffic that comes into the switch via a
public interface, through a tunnel, or from the switch’s public interface
address.
protocol
A formal description of message formats and the rules two computers must
follow to exchange those messages. A protocol can describe low-level details
of machine-to-machine interfaces or high-level exchanges between allocation
programs.
public default route
The default routes that are used for traffic that comes into the switch via a
private interface or from the switch’s private interface address.
Resource Reservation Protocol (RSVP)
A protocol used to signal QoS requests and confirmations.
route
The path that network traffic takes from its source to its destination.
router
A device that forwards traffic between networks. The forwarding decision is
based on network layer information and routing tables.
routing
The process of selecting the correct interface and next hop for a packet being
forwarded.