Table Of Contents

Integrated Services Digital Network (ISDN)

Technology Description

ISDN

Inventory and Information Model Objects (IMOs)

Integrated Services Digital Network Interface

Integrated Services Digital Network Channel

Integrated Services Digital Network (ISDN) Physical

Vendor-Specific Inventory and Information Model Objects

Network Topology

Service Alarms

Integrated Services Digital Network (ISDN)

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This chapter describes the level of support that Cisco ANA provides for ISDN, as follows:

•Technology Description

•Inventory and Information Model Objects (IMOs)

•Vendor-Specific Inventory and Information Model Objects

•Network Topology

•Service Alarms

Technology Description

ISDN

Integrated Services Digital Network (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 Kbps Bearer (B) channel used for data, and a 64 Kbps (maximum) Delta (D) channel used for signalling and control over Layers 1, 2 and 3 of the OSI model. It also offers two types of channel-based services: The 192Kbps Basic Rate Interface (BRI) service, which offers two B channels and one D channel (2B+D); and the 1.544/2.048 Mbps Primary Rate Interfaces (PRI) service, which offers 23 to 31 B channels and one D channel, respectively, for the xDSL interface backup.

Inventory and Information Model Objects (IMOs)

This section describes the following IMOs:

•Integrated Services Digital Network Interface (IIsdnLayer2)

•Integrated Services Digital Network Channel (IIsdnChannel)

•Integrated Services Digital Network Physical (IIsdnLayer1)

Integrated Services Digital Network Interface

The Data Link layer Integrated Services Digital Network Interface object is bound by its Containing Termination Points attribute to a Physical Layer Integrated Services Digital Network (ISDN) Physical object. It is accessed primarily by a Point To Point Protocol Encapsulation bound by its Contained Connection Termination Points attribute.

Table 10-1 Integrated Services Digital Network Interface (IIsdnLayer2)

Attribute Name	Attribute Description	Scheme	Polling Interval
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 Integrated Services Digital Network Channels	Product	Configuration
IANA Type	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

Integrated Services Digital Network Channel

The Data Link layer Integrated Services Digital Network Channel object describes an Integrated Services Digital Network Interface channels table's entry.

Table 10-2 Integrated Services Digital Network Channel (IIsdnChannel)

Attribute Name	Attribute Description	Scheme	Polling Interval
Control Administrative Status	Administrative status (Unknown, Up, Down, Testing)	Product	Status
Operational Status	Operational status (Unknown, Up, Down, Testing, Dormant, Not Present)	Product	Status

Integrated Services Digital Network (ISDN) Physical

The Physical layer Integrated Services Digital Network (ISDN) Physical object is bound by its Containing Termination Points attribute to a Port Connector object. It is accessed by the Data Link layer Integrated Services Digital Network Interface bound by its Contained Connection Termination Points attribute.

Table 10-3 Integrated Services Digital Network Physical (IIsdnLayer1)

Attribute Name	Attribute Description	Scheme	Polling Interval
Same as Physical Layer (IPhysicalLayer)

Vendor-Specific Inventory and Information Model Objects

There are no vendor-specific inventory or IMOs for ISDN.

Network Topology

Cisco ANA does not support discovery of ISDN Physical layer topology. This topology is manually (statically) configured by the system administrator.

Service Alarms

The following alarms are supported for this technology:

•Link Down/Link Up

•Port Down/Port Up

For detailed information about alarms and correlation, see the Cisco Active Network Abstraction 3.6.5 User Guide.