Glossary
Glossary-50
255-700-166
PacketStar
®
PSAX 6-Port DS1 IMA Module User Guide
, Issue 1
Release 7.0
software release distribution
See SRD.
SONET
Synchronous Optical Network. An optical multiplexing inter-
face for wideband, high-speed transmission (up to
13.22 Gbps), used mainly in carrier and telecommunications
networks.
source routing
See SR.
SPVC
SemiPermanent Virtual Circuit. A PVC-type connection in
which SVCs are used for call setup and (automatic) rerouting.
Once either a PVC connection or a permanent virtual path
connection has been configured, an SPVC can be established
between the two network interfaces serving the PVC connec-
tion through the use of signaling procedures. Consequently,
this type of connection has attributes of both a switched vir-
tual connection and a permanent virtual connection.
SR
source routing. A bridging method whereby the source at a
data exchange determines the route subsequent frames use.
SRAM
Static Random Access Memory. A form of RAM that retains
its data without constantly refreshing, as DRAM must. SRAM
is commonly used to cache data traveling between the CPU
and a RAM subsystem populated with DRAM.
SRD
software release distribution. The way by which a user
upgrades the PSAX Multiservice Media Gateway system soft-
ware.
SS7
Signaling System 7. A signaling method, separate from voice
or data channel, that allows intelligent network elements
exchange information among themselves.
SSCOP
Service-Specific Connection-Oriented Protocol. This protocol
provides mechanisms for establishing, releasing, and monitor-
ing signaling information exchanged between peer signaling
entities.
SSCS
Service Specific Convergence Sublayer. The portion of the
convergence sublayer that is dependent upon the type of traf-
fic that is being converted.
standalone
A monolithic application for AQueView
®
that binds the client
and the server into a single process, without HP OpenView or
NNM.
static random access memory
See SRAM.
static route
A route that is manually entered into a routing table. Static
routes take precedence over routes chosen by all dynamic
routing protocols.
STM-1
synchronous transport. A SHD standard for transmitting over
an OC-3 optical fiber at 155.52 Mbps. An STM-1 module is
equivalent to a SONET STS-3c module.
STM-4c
The “c” stands for concatentated, which means the whole
STM-4 is seen as one link.