Cisco Systems 3.6 specifications Supported When Logical Inventory Physical Inventory

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Chapter 5 Correlation Over Unmanaged Segments

Cloud VNE

Table 5-1

Cloud Types Supported

 

 

 

 

 

 

 

Technology Type

 

Supported When...

Logical Inventory

Physical Inventory

 

 

 

 

 

ATM

 

An ATM cloud (representing

The IP interface connected to a

The ATM port connected to the

 

 

unmanaged network segments)

routing entity or VRF

VC encapsulation, for the ATM

 

 

comprised of ATM switches is

component, for the ATM

interface or sub-interface.

 

 

connected to routers (managed

interface or sub-interface.

 

 

 

segments) with ATM interfaces.

 

 

 

 

The ATM interface or

 

 

 

 

sub-interface in the router is IP

 

 

 

 

over an ATM VC encapsulation

 

 

 

 

interface with a VC (VPI or VCI)

 

 

 

 

or VP (VPI) configuration.

 

 

 

 

 

 

 

Frame Relay

 

A Frame Relay cloud

The IP interface connected to a

The Frame Relay port connected

 

 

(representing unmanaged

routing entity or VRF

to the VC encapsulation, for the

 

 

network segments) comprised of

component, for the Frame Relay

Frame Relay interface or

 

 

Frame Relay switches is

interface or sub-interface.

sub-interface.

 

 

connected to routers (managed

 

 

 

 

segments) with Frame Relay

 

 

 

 

interfaces. The Frame Relay

 

 

 

 

interface or sub-interface in the

 

 

 

 

router is IP over a Frame Relay

 

 

 

 

VC encapsulation interface with

 

 

 

 

a DLCI configuration.

 

 

 

 

 

 

 

Ethernet

 

A Ethernet LAN cloud

The IP interface connected to a

The ethernet port connected to

 

 

(representing unmanaged

routing entity or bridges, for the

the VLAN encapsulation, for the

 

 

network segments) comprised of

ethernet interface or

ethernet interface or

 

 

Ethernet LAN switches is

sub-interface.

sub-interface.

 

 

connected to routers (managed

 

 

 

 

segments) with Ethernet

 

 

 

 

interfaces. The ethernet interface

 

 

 

 

or sub-interface in the router can

 

 

 

 

be either native or VLAN

 

 

 

 

interfaces.

 

 

 

 

 

 

 

Fault Correlation Across the Frame Relay or ATM or Ethernet Cloud

When a Layer 3 or Layer 2 event (for example, reachability problem, neighbor change, Frame Relay DLCI down, ATM PVC down) occurs, it triggers a flow along the physical and logical path modeled on the VNEs. This is done in order to correlate to the actual root cause of this fault. If the flow passes over a cloud along the path flow, it marks it as a potential root cause for the fault. If there is no other root cause found on the managed devices, then the cloud becomes the root cause. A ticket is then issued and the original event correlates to it.

Cisco Active Network Abstraction Fault Management User Guide, Version 3.6 Service Pack 1

5-2

OL-14284-01

 

 

Image 44
Contents Americas Headquarters Page N T E N T S Multi Route Correlation Cloud VNE Alarm Sending Event Correlator About This Guide ViiViii Fault Management Overview Managing EventsAlarm Basic Concepts and TermsEvent Event SequenceRepeating Event Sequence Flapping EventsCorrelation By Root Cause TicketSeverity Propagation Sequence Association and Root Cause AnalysisEvent Processing Overview OL-14284-01 Fault Detection and Isolation Unreachable Network ElementsVNE Integrity Service Sources of Alarms On a DeviceAlarm Integrity Fault Detection and Isolation Integrity Service Event Suppression Cisco ANA Event Correlation and SuppressionRoot-Cause Correlation Process Cisco ANARoot-Cause Alarms Correlation FlowsCorrelation by Key Correlation by FlowCorrelating TCA Using WeightsDC Model Correlation Cache Connectivity Test Device Unreachable AlarmAdvanced Correlation Scenarios Device Fault Identification Device Unreachable ExampleIP Interface Status Down Alarm IP Interface Failure ScenariosCorrelation of Syslogs and Traps All IP Interfaces Down Alarm IP Interface Failure ExamplesInterface Example 10.200.1.2 General Interface Example ATM Examples Ethernet, Fast Ethernet, Giga Ethernet ExamplesInterface Registry Parameters Ip interface status down ParametersMulti Route Correlation Multi Route Correlation Example11 Multi Route Correlation Example GRE Tunnel Down/Up Alarm Generic Routing Encapsulation GRE Tunnel Down/UpGRE Tunnel Down Correlation Example 14 GRE Tunnel Down Example 1 Single GRE Tunnel15 GRE Tunnel Down Example 2 Multiple GRE Tunnels 16 Alarms Correlation to GRE Tunnel Down Ticket LDP Neighbor Down Alarm BGP Process Down AlarmMpls Interface Removed Alarm OL-14284-01 Types of Unmanaged Networks Supported Correlation Over Unmanaged SegmentsCloud VNE Supported When Logical Inventory Physical Inventory Cloud Problem Alarm Cloud Correlation ExampleOL-14284-01 Event and Alarm Configuration Parameters Alarm Type DefinitionGeneral Event Parameters Event Sub-Type Configuration ParametersRoot Cause Configuration Parameters Correlation Configuration Parameters Network Correlation ParametersSystem Correlation Configuration Parameters Flapping Event Definitions ParametersImpact Analysis Impact Analysis OptionsImpact Report Structure Affected SeveritiesImpact Analysis GUI Affected Parties TabViewing a Detailed Report For the Affected Pair Detailed Report For the Affected Pair Disabling Impact Analysis Accumulating Affected PartiesUpdating Affected Severity Over Time Accumulating the Affected Parties In an AlarmAccumulating the Affected Parties In the Correlation Tree OL-14284-01 Supported Service Alarms BGP process up Shut down on a deviceAll ip interfaces Sent when all IP interfaces True Warnin Shelf Out Link Over Utilized Rx DormantTx Dormant OL-14284-01 Event and Alarm Correlation Flow Software Function Architecture Figure B-1 Event Correlation Flow VNE levelEvent Correlation Event Correlation FlowEvent Creation VNE level Post-Correlation Rule Event Correlator Alarm Sending Event CorrelatorCorrelation Logic Event Correlator
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3.6 specifications

Cisco Systems 3.6 marks a significant advancement in network technology, presenting an innovative suite of features and capabilities designed to enhance performance, security, and flexibility for modern networks. As a leader in networking solutions, Cisco continues to evolve its offerings, ensuring they meet the demands of businesses operating in increasingly complex environments.

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In conclusion, Cisco Systems 3.6 represents a comprehensive evolution in networking technology, focusing on automation, security, cloud integration, SDN, collaboration, and energy efficiency. These features position Cisco as a pivotal player in supporting organizations as they navigate the complexities of digital transformation and the future of networking.