138GLOSSARY
Quality of Service Parameters that are defined by the network manager and include (QoS) metrics information on bandwidth, guaranteed cell delay, jitter, and other
performance options available for establishing a new ATM connection.
R
reachability A list of reachable addresses for any one node. information
router A device that connects two remote networks by selectively forwarding messages between them. A router differs from a bridge and a gateway in that it selectively forwards information between the networks.
Routers can be implemented in pairs, or a router may communicate directly with a computer.
S
SAR Segmentation and Reassembly. A method of breaking up arbitrarily sized packets.
scope A scope defines the level of advertisement for an address. The level is a level of a peer group in the PNNI routing hierarchy.
server A computer that provides clients with application and network services. Servers are shared by multiple users.
source routing The selection of the correct path, by the PNNI.
SNMP Simple Network Management Protocol. A protocol originally designed to be used in managing TCP/IP internets. SNMP is presently implemented on a wide variety of computers and networking equipment and may be used to manage many aspects of network and
summary address An address prefix that tells a node how to summarize reachability information.
SuperStack II Switch 3Com
2700 devices to each other and to an ATM backbone.
