Table Of Contents
Integrated Services Digital Network
Information Model Objects (IMOs)
Vendor-Specific Inventory and IMOs
Integrated Services Digital Network
This chapter describes the level of support that Cisco ANA provides for ISDN, as follows:
•
Information Model Objects (IMOs)
•
Technology Description
ISDN is a digital telephony and data transport service offered by regional telephone carriers. ISDN involves digitization of the telephone network, which permits voice, data, text, graphics, music, video, and other source material to be transmitted over existing telephone wires.
ISDN offers two types of channels: A 64-Kb/s Bearer (B) channel used for data, and a 64-Kb/s (maximum) Delta (D) channel used for signaling and control over layers 1, 2, and 3 of the Open Systems Interconnection (OSI) model. It also offers two types of channel-based services: The 192-Kb/s Basic Rate Interface (BRI) service, which offers two B channels and one D channel (2B+D); and the 1.544/2.048-Mb/s Primary Rate Interfaces (PRI) service, which offers 23 to 31 B channels and one D channel, respectively, for the xDSL interface backup.
Information Model Objects (IMOs)
This section describes the following IMOs:
ISDN Interface
The data link layer ISDN Interface object is bound by its Containing Termination Points attribute to a physical layer ISDN Physical object. It is accessed primarily by a PPP Encapsulation bound by its Contained Connection Termination Points attribute.
Table 22-1 ISDN Interface (IIsdnLayer2)
Control Administrative Status
Administrative status (Unknown, Up, Down, Testing)
Product
Status
Operational Status
Operational status (Unknown, Up, Down, Testing, Dormant, Not Present)
Product
Status
Channels Table
Array of ISDN Channels
Product
Configuration
IANA Type
Internet Assigned Numbers Authority (IANA) type of the sublayer
N/A
N/A
Containing Termination Points
Underlying termination points (connection or physical)
Product
N/A
Contained Connection Termination Points
Bound connection termination points
Product
N/A
ISDN Channel
The data link layer ISDN Channel object describes an ISDN Interface channels table's entry.
ISDN Physical
The physical layer ISDN Physical object is bound by its Containing Termination Points attribute to a Port Connector object. It is accessed by the data link layer ISDN Interface bound by its Contained Connection Termination Points attribute.
Table 22-3 ISDN Physical (IIlsdnLayer1)
All attributes are the same as those of Physical Layer (IPhysicalLayer).
Vendor-Specific Inventory and IMOs
There are no vendor-specific inventory or IMOs for this technology.
Service Alarms
The following alarms are supported for this technology: