Specifications

Glossary-xv
Glossary
session management
A facility provided by some access servers that uses TD/SMP to communicate
with a access server device so that the device can process simultaneous,
independent, multiple terminal sessions. On the device, the data exchange of
multiple sessions can be processed simultaneously regardless of which session is
current.
Simple Network Management Protocol
See SNMP.
SLIP
Serial Line Internet Protocol. This protocol uses a simple framing technique to
transmit IP datagrams over serial lines.
SLIP host
An Internet host that uses SLIP as its data link.
SNMP
Simple Network Management Protocol. An Internet protocol that is used to
manage systems from one or more Internet hosts.
subnet addressing
An addressing technique that allows a site to share a single Internet network
address among multiple logical networks, as long as all the hosts and gateways
on those networks cooperate. It is a form of hierarchical routing in which the top
level of the routing hierarchy, the core gateway system, uses the network portion
of the Internet address (when routing packets) to identify the local gateway. The
next level, the local gateway, uses part of the host portion of the Internet address
to identify the subnet and route packets to it. And finally, the lowest level, the
specific host computer, uses the remainder of the host portion of the address to
identify and accept packets addressed to it.
subnet identifier
This is the part of the network address that is unique to the subnet. It can be
determined by logically ANDing the Internet address with the subnet mask.
subnet mask
A 32-bit quantity that enables gateways and host computers to know which bits
in the Internet address correspond to their subnet address and which correspond
to their host addresses.
switch characters
Characters interpreted by the access server that cause the access server to switch
between sessions or between local and service modes.