Cisco Systems 3.6 specifications General Interface Example

Page 32

Chapter 4 Advanced Correlation Scenarios

IP Interface Failure Scenarios

Figure 4-6

Interface Example 4

 

 

 

 

unreachable

interface Serial0/0.100

Mixed Multipoint and

 

 

Point-to-point

 

 

 

Router2

 

 

 

point-to-point

 

 

 

connectivity

 

 

 

10.222.1.2

 

 

 

10.200.1.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

interface Serial0/0.55

 

 

 

 

multipoint

 

 

 

interface Serial0/0.101

Frame-Relay

10.200.1.10

Router10

 

 

cloud

Link is "down"

10.222.1.10

 

point-to-point

unreachable

10.200.1.3

 

 

 

 

Router2

 

 

 

All IP interface

 

10.222.1.3

 

 

 

180437

 

 

 

 

state to "down"

 

 

 

above Serial0/0 change

 

The following failures are identified in the network:

•A link-down alarm is generated on Serial0/0.

•A device unreachable alarm is generated for each CE.

•An ip interface status down alarm is generated for each IP interface above Serial0/0.

•An All interfaces down alarm is generated on Serial0/0.

The following correlation information is provided:

•The device unreachable alarms are correlated to the link-down alarm

•The ip interface status down alarm is correlated to the link-down alarm

•The All interfaces down alarm is correlated to the link-down alarm

•All the traps and syslogs for the subinterfaces are correlated to the link-down alarm

Interface Example 5

In this example on the PE1 device that has multipoint connectivity, one of the circuits under the IP interface has gone down and the CE1 device which is connected to it has become unreachable. The status of the IP interface has not changed and other circuits are still operational.

Figure 4-7 General Interface Example

CE1

unreachable

 

Mixed Multipoint

 

and Point-to-point

 

connectivity

CE2

PE1

 

 

Cloud

 

Circuit

CE3

down

 

syslog

180440

The following failures are identified in the network:

•A device unreachable alarm is generated on CE1.

•A Syslog alarm is generated notifying the user about a circuit down.

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

4-8

OL-14284-01

 

 

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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.

One of the standout features of Cisco Systems 3.6 is the introduction of enhanced automation capabilities. Automation reduces the manual effort required for network management, allowing IT teams to focus on strategic initiatives rather than routine maintenance. The system leverages advanced machine learning algorithms to analyze network behavior, detect anomalies, and suggest optimizations, which enhances operational efficiency and uptime.

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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.
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