Glossary
597
standard IP access list
IP access list that uses only the source IP addresses
to filter a network.
standard IPX access list
IPX access list that uses only the source and des-
tination IPX address to filter a network.
star topology
A LAN physical topology with endpoints on the network
converging at a common central switch (known as a hub) using point-to-
point links. A logical ring topology can be configured as a physical star
topology using a unidirectional closed-loop star rather than point-to-point
links. That is, connections within the hub are arranged in an internal ring.
See also: bus topology and ring topology.
startup range
If an AppleTalk node does not have a number saved from
the last time it was booted, then the node selects from the range of values
from 65280 to 65534.
state transitions
Digital signaling scheme that reads the "state" of the
digital signal in the middle of the bit cell. If it is five volts, the cell is read as
a one. If the state of the digital signal is zero volts, the bit cell is read as a zero.
static route
A route whose information is purposefully entered into
the routing table and takes priority over those chosen by dynamic routing
protocols.
static VLANs
Static VLANs are manually configured port-by-port. This is
the method typically used in production networks.
statistical multiplexing
Multiplexing in general is a technique that allows
data from multiple logical channels to be sent across a single physical
channel. Statistical multiplexing dynamically assigns bandwidth only to
input channels that are active, optimizing available bandwidth so that more
devices can be connected than with other multiplexing techniques. Also
known as statistical time-division multiplexing or stat mux.
STM-1
Synchronous Transport Module Level 1. In the European SDH
standard, one of many formats identifying the frame structure for the
155.52Mbps lines that are used to carry ATM cells.
Copyright ©2000 SYBEX , Inc., Alameda, CA
www.sybex.com