SGlossary
B-74 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
subNMS Subnetwork Management System: A Network Management System that is
managing one or more subnetworks and that is managed by one or more Network
Management Systems.
Summary Address An address prefix that tells a node how to summarize reachability information.
SUT System Under Test: The real open system in which the Implemen tation Under Test
(IUT) resides.
SVC Switched Virtual Circuit: A connection established via signal ing. The user defines
the endpoints when the call is initiated.
SVCC Switched Virtual Channel Connection: A Switched VCC is one which is
established and taken down dynamically through control signaling. A Virtual
Channel Connection (VCC) is an ATM connection where switching is performed
on the VPI/VCI fields of each cell.
SVE SAP Vector Element: The SAP address may be expresse d as a ve ctor , ( ATM_addr,
ATM_selector, BLLI_id2, BLLI_id3, BHLI_id), where:
• ATM_addr corresponds to the 19 most significant octets of a device's 20-octet
ATM address (priv ate A TM address structure) or the entire E.164 address (E.16 4
address structure)
• ATM_selector corresponds to the least significant octet of a device's 20-octet
ATM address (private ATM address structure only)
• BLLI_id2 corresponds to an octet in the Q.2931 BLLI information element that
identifies a layer 2 protocol •BLLI_id3 corresponds to a set of octets in the
Q.2931 BLLI information element that identify a layer 3 protocol
• BHLI_id corresponds to a set of octets in the Q .2931 BHLI information element
that identify an application (or session layer protocol of an application)
Each element of the SAP vector is called a SAP Vector Element, or SVE. Each SVE
consists of a tag, length, and value field.