Cisco Active Network Abstraction Technology Support and Information Model Reference Manual, 3.6.2
Frame Relay “FR”

Table Of Contents

Frame Relay "FR"

Technology Description

Frame Relay

Inventory and Information Model Objects (IMOs)

Frame Relay Interface

Frame Relay Virtual Connection

Frame Relay Traffic Descriptor

Frame Relay Logical Interface

Frame Relay Trunk Virtual Connection

Network Topology

Service Alarms


Frame Relay "FR"


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

Technology Description

Inventory and Information Model Objects (IMOs)

Network Topology

Service Alarms

Technology Description

Frame Relay

Frame Relay (FR) is a high performance variable length packets switching with statistical multiplexing Data Link (Layer 2) WAN protocol, which Although originally designed for use across Integrated Services Digital Network (ISDN) interface, today it is used over a variety of other network interfaces as well.

FR networks consist of FR switches interconnected by point-to-point FR links or Interfaces and are fundamentally connection-oriented, which means that a virtual channel (VC) must be set up across the FR network prior to any data transfer.

Inventory and Information Model Objects (IMOs)

This section includes the following tables:

Frame Relay Interface (IFrameRelay/IFrTrunk)

Frame Relay Virtual Connection (IFrVc)

Frame Relay Traffic Descriptor (IFRTrafficDescriptor)

Frame Relay Logical Interface (IFrameRelayLogicalPort/Trunk)

Frame Relay Trunk Virtual Connection (IFrTrunkVc)

Frame Relay Interface

The following Data Link layer Frame Relay Interface object aggregates multiple Frame Relay Virtual Connections, which it is bound to by its VC Table attributes. It is bound by its Containing Termination Points attribute to a Physical Layer Interface, and is primarily being accessed by Data Link layer VC Multiplexer, bound by its Contained Connection Termination Points attribute. It is also being accessed by Virtual Connection Switching Entity.

Table 7-1 Frame Relay Interface (IFrameRelay/IFrTrunk)

Attribute Name
Attribute Description
Scheme
Polling Interval

Address Format

Frame relay address format (Unknown, q921, q922March90, q922November90, q922)

Any

Configuration

Maximum Supported VCs

Maximum supported virtual connections

Any

Configuration

Protocol Type

Frame relay protocol type (Unknown, Frame Relay, FR FUNI, Frame Forward)

Any

Configuration

VC Table

Array of Frame Relay Virtual Connections

Any

Configuration

Cross Connect Table

Array of Virtual Cross Connections

Any

Configuration

IANA Type

IANA type of the sub/layer

N/A

N/A

Containing Termination Points

Underlying termination points (connection or physical)

Any

N/A

Contained Connection Termination Points

Bound Connection Termination Points

Any

N/A


Frame Relay Virtual Connection

The following Data Link layer Frame Relay Virtual Connection object, is bound by its Containing Termination Points attribute to a Data Link layer Frame Relay Interface object, and is primarily accessed by the Virtual Cross Connection and Data Link layer VC Encapsulation, however it is not bound to any of them by any of its attributes.

Table 7-2 Frame Relay Virtual Connection (IFrVc) 

Attribute Name
Attribute Description
Scheme
Polling Interval

Data Link Connection Identifier

Data Link Connection Identifier (DLCI)

Any

Configuration

Traffic Descriptor

Traffic descriptor (Frame Relay Traffic Descriptor)

Any

Configuration

Ingress Traffic Descriptor

Ingress traffic descriptor (Frame Relay Traffic Descriptor)

Any

Configuration

Egress Traffic Descriptor

Egress traffic descriptor (Frame Relay Traffic Descriptor)

Any

Configuration

Administrative Status

Administrative status (Unknown, Up, Down)

Any

Status

Operational Status

Operational status (Unknown, Up, Down)

Any

Status

IANA Type

IANA type of the sub/layer

N/A

N/A

Containing Termination Points

Underlying termination points (connection or physical)

Any

N/A

Contained Connection Termination Points

Bound Connection Termination Points

Any

N/A


Frame Relay Traffic Descriptor

The following Frame Relay Traffic Descriptor object describes the traffic of a single Frame Relay Virtual Connection is being aggregated by a Traffic Descriptor Container object (see Common (Shared by Several)).

Table 7-3 Frame Relay Traffic Descriptor (IFRTrafficDescriptor)

Attribute Name
Attribute Description
Scheme
Polling Interval

Committed Rate

Committed burst rate

Any

Configuration

Excess Burst Rate

Excess burst rate

Any

Configuration

Name

Traffic descriptor name

Any

Configuration

Index

Traffic descriptor index

Any

Configuration


Frame Relay Logical Interface

The following Data Link layer Frame Relay Logical Interface object aggregates multiple Frame Relay Virtual Connections, which it is bound to by its VC Table attributes. It is bound by its Containing Termination Points attribute to a Physical Layer Interface, and is primarily accessed by the Virtual Connection Switching Entity and Data Link layer VC Encapsulation bound by its Contained Connection Termination Points attribute.

Table 7-4 Frame Relay Logical Interface (IFrameRelayLogicalPort/Trunk)

Attribute Name
Attribute Description
Scheme
Polling Interval

Administrative Status

Administrative status (Null, Up, Down, Testing)

Any

Status

Operational Status

Operational status (Null, Up, Down, Testing, Unknown, Dormant, Not Present)

Any

Status

Same as Frame Relay Interface (IFrameRelay/IFrTrunk)


Frame Relay Trunk Virtual Connection

The following Data Link layer Frame Relay Trunk Virtual Connection object, is bound by its Containing Termination Points attribute to a Frame Relay Interface object, and is primarily accessed by the Virtual Cross Connection and Data Link layer VC Encapsulation, however it is not bound to any of them by any of its attributes.

Table 7-5 Frame Relay Trunk Virtual Connection (IFrTrunkVc)

Attribute Name
Attribute Description
Scheme
Polling Interval

Destination Description

Destination party description

Any

Configuration

Same as Frame Relay Virtual Connection (IFrVc)


Network Topology

The discovery of Frame Relay (FR) Data Link layer topology is unsupported and is manually (statically) configured by the system administrator.

Service Alarms

The following alarms are supported for this technology:

Cloud Problem

Discard Input Packets/Normal Discard Input Packets

Dropped Output Packets/Normal Dropped Output Packets

Link Down/Link Up

Port Down/Port Up

Receive Utilization/Receive Utilization Normal

Transmit Utilization/Transmit Utilization Normal


Note Note that these alarms, apart from the Cloud Problem, are related to the underlying Physical Interface (see Common (Shared by Several)).



Note For a detailed description of these alarms and for information about correlation see the Cisco Active Network Abstraction Fault Management User Guide.