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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
customer identifier (CID)
The customer identifier is used in customer network management (CNM) to
limit the user’s access to components that belong to the same customer
identifier. A CNM operator can send commands only to components
provisioned with the same CID as the operator. A CNM operator receives only
data collection system (DCS) data, such as alarms, that is generated by
components provisioned with the same CID as that of the operator. The
special CID of 0 is reserved for the network owner, known as the network
manager (Netman). A CID of zero is required to provision the overall network.
customer network management (CNM)
Allows virtual private network (VPN) user access to VPN-specific information,
such as real-time alarms and the use and status of VPN network components
and shared components.
D-channel
See delta channel (D-channel) (page 41).
D4
One of the framing patterns for DS1, in which there are 12 frames for each
multiframe. See also
extended superframe (ESF) (page 50).
data circuit-terminating equipment (DCE)
In data communications, the equipment at the network side of a subscriber
link that provides both interface control and the means of digital transmission
between user premises and the network nodes.
data collection system (DCS)
A software system that collects various types of management data (such as
alarms, accounting records, logs, state change notifications, and traps
information) and distributes it as requested.
data encryption standard (DES)
A symmetric encryption algorithm standardized by the National Institute of
Standards and Technology.
data link connection identifier (DLCI)
Ten bits within the two address octets of a frame relay address header that
carry information used to locally identify the virtual circuits or permanent
virtual circuits. For more information, see NN10600-900 Nortel Multiservice
Switch 7400/15000/20000 Frame Relay Technology Fundamentals.