Appendix H. Glossary
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H-7
packet
A message containing both control information and data. The control informa-
tion is used for routing the packet through a network to its final destination.
Contrast with frame relay frame.
packet-switching network
A telecommunications network based on packet-switching technology, wherein
a transmission channel is occupied only for the duration of the transmission of
the packet. Contrast with frame relay network.
parameter
A numerical code that controls an aspect of terminal and/or network operation.
Parameters control such aspects as page size, data transmission speed, and tim-
ing options.
permanent virtual circuit (PVC)
A frame relay logical link, whose endpoints and class of service are defined by
network management. Analogous to an X.25 permanent virtual circuit, a PVC
consists of the originating frame relay network element address, originating data
link control identifier, terminating frame relay network element address, and ter-
mination data link control identifier. Originating refers to the access interface
form which the PVC is initiated. Terminating refers to the access interface at
which the PVC stops. Many data network customers require a PVC between two
points. Data terminating equipment with a need form continuous communion
use PVCs. See also data link connection identifier (DLCI).
ping
An internet protocol standard that provides loopback on demand for any device
in an IP network. One device "pings" another by sending a loopback request to
the device's IP address.
point-to-point
Type of communications link that connects a single device to another single
device, such as a remote terminal to a host computer.
remote configuration
A feature designed into ADTRAN DSU/CSU products that allow remote DSU/
CSU to be configured from a local DSU/CSU or VT-100 compatible terminal.
Содержание DSU IV ESP
Страница 54: ...Chapter 4 Applications 4 8 DSU IV ESP User Manual 61204011L1 1...
Страница 80: ...Chapter 8 Configuring Test Options 8 4 DSU IV ESP User Manual 61204011L1 1...
Страница 92: ...Chapter 9 Configuring Dial Options 9 12 DSU IV ESP User Manual 61204011L1 1...
Страница 104: ...Chapter 11 Configuring Unit Utilities 11 6 DSU IV ESP User Manual 61204011L1 1...
Страница 108: ...Chapter 12 Activating Dial Functions 12 4 DSU IV User Manual 61204011L1 1...
Страница 134: ...Chapter 14 Viewing Status Information 14 6 DSU IV ESP User Manual 61204011L1 1...
Страница 140: ...Appendix A Pinouts A 6 DSU IV ESP User Manual 61204011L1 1...
Страница 152: ...Appendix B AT Commands B 12 DSU IV ESP User Manual 61204011L1 1...
Страница 168: ...Appendix D Configuration Profiles D 4 DSU IV ESP User Manual 61204011L1 1...
Страница 172: ...Appendix E DSU to DSU Tail Circuit E 4 DSU IV ESP User Manual 61204011L1 1...
Страница 176: ...Appendix F Specifications Summary F 4 DSU IV ESP User Manual 61204011L1 1...
Страница 190: ...Appendix H Glossary H 10 DSU IV ESP User Manual 61204011L1 1...
Страница 194: ...Index Index 4 DSU IV ESP User Manual 61204011L1 1...