Specifications

Glossary-xvii
Glossary
Time To Live
See TTL.
TFTP
Trivial File Transfer Protocol. For access servers, this Internet protocol is used to
downline load software from a load host to the access server.
transceiver
Hardware equipment that provides an electrical connection to a network cable for
a network node.
Transport Control Protocol/Internet Protocol
See TCP/IP.
TRAP message
An SNMP message sent by the agent (in this case, the access server) to one or
more designated Internet hosts.
TSM
Terminal Server Manager. Software that runs on a OpenVMS host system. TSM
allows a manager to monitor and control multiple access servers from one
location.
The access servers must be connected to the same Ethernet LAN as the OpenVMS
host system.
TTL
Time To Live. This is a value that shows the time that an Internet host entry in the
access server database has left to be refreshed or removed. This value appears in
the SHOW INTERNET HOST STATUS display.
upline dumping
The process of sending a copy of the access server memory to a responding load
host, usually following a fatal error. The data is dumped into the unique access
server dump file in the access server directory.
UDP
User Datagram Protocol. A protocol that is the part of the Internet Protocol that
provides datagram service. It distinguishes between multiple destinations on a
host, allowing multiple application programs executing on a host to
independently exchange (send and receive) datagrams with multiple application
programs on another host.
User Datagram Protocol
See UDP.