Cisco Systems 3.6 specifications Event Suppression, Cisco ANA Event Correlation and Suppression

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C H A P T E R 3

Cisco ANA Event Correlation and Suppression

This chapter describes how Cisco ANA performs correlation logic decisions:

•Event Suppression—Describes enabling or disabling port-down, port-up, link-down and link-up alarms on a selected port.

•Root-Cause Correlation Process—Describes the root-cause correlation concept.

•Root-CauseAlarms—Describes the root-cause alarm and weights concepts.

•Correlation Flows—Describes correlation by flow and correlation by key. In addition, it describes the DC model correlation cache.

Event Suppression

The user can enable or disable the port-down, port-up, link-down, and link-up alarms on a selected port. By default, alarms are enabled on all ports except for xDSL. When the alarms are disabled on a port, no alarms will be generated for the port, and they will not be displayed in the ticket pane. Using the Registry Editor advanced tool, it is possible to enable or disable service alarms on network entities other than ports, such as the MPBGP (for enabling or disabling BGP neighbor down events), or the MPLS TE Tunnel (for TE-Tunnel down service alarm). It is also possible to enable or disable alarm specific types without regard to a specific network entity.

By default, port-down alarms are suppressed on xDSL ports. Cisco ANA supports selectively enabling sending of port-down alarms on xDSL ports. This can be done by:

•Using a command available in the GUI, right-click on the port in the inventory, select Enable Sending Alarms.

or

•Setting a flag in the registry under the OID of the port. Changes to the registry should only be carried out with the support of Cisco Professional Services.

Refer to the Cisco Active Network Abstraction NetworkVision User Guide for information about disabling or enabling a port alarm.

Events can also be filtered according to their DC type source, for example, all the events that come from any ATM DC can be filtered by configuring the registry. The following alarm under DC types is filtered by default:

•VRF—duplicate ip on vpn

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

 

OL-14284-01

3-1

 

 

 

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Contents Americas Headquarters Page N T E N T S Multi Route Correlation Cloud VNE Alarm Sending Event Correlator Vii About This GuideViii Managing Events Fault Management OverviewBasic Concepts and Terms AlarmEvent Sequence EventFlapping Events Repeating Event SequenceTicket Correlation By Root CauseSequence Association and Root Cause Analysis Severity PropagationEvent Processing Overview OL-14284-01 Unreachable Network Elements Fault Detection and IsolationVNE Sources of Alarms On a Device Alarm IntegrityIntegrity Service Fault Detection and Isolation Integrity Service Cisco ANA Event Correlation and Suppression Event SuppressionCisco ANA Root-Cause Correlation ProcessCorrelation Flows Root-Cause AlarmsCorrelation by Key Correlation by FlowUsing Weights DC Model Correlation CacheCorrelating TCA Device Unreachable Alarm Advanced Correlation ScenariosConnectivity Test Device Unreachable Example Device Fault IdentificationIP Interface Failure Scenarios IP Interface Status Down AlarmCorrelation of Syslogs and Traps IP Interface Failure Examples All IP Interfaces Down AlarmInterface Example 10.200.1.2 General Interface Example Ethernet, Fast Ethernet, Giga Ethernet Examples ATM ExamplesIp interface status down Parameters Interface Registry ParametersMulti Route Correlation Example Multi Route Correlation11 Multi Route Correlation Example Generic Routing Encapsulation GRE Tunnel Down/Up GRE Tunnel Down/Up Alarm14 GRE Tunnel Down Example 1 Single GRE Tunnel GRE Tunnel Down Correlation Example15 GRE Tunnel Down Example 2 Multiple GRE Tunnels 16 Alarms Correlation to GRE Tunnel Down Ticket BGP Process Down Alarm Mpls Interface Removed AlarmLDP Neighbor Down Alarm OL-14284-01 Correlation Over Unmanaged Segments Cloud VNETypes of Unmanaged Networks Supported Supported When Logical Inventory Physical Inventory Cloud Correlation Example Cloud Problem AlarmOL-14284-01 Alarm Type Definition Event and Alarm Configuration ParametersEvent Sub-Type Configuration Parameters Root Cause Configuration ParametersGeneral Event Parameters Network Correlation Parameters Correlation Configuration ParametersFlapping Event Definitions Parameters System Correlation Configuration ParametersImpact Analysis Options Impact AnalysisAffected Severities Impact Report StructureAffected Parties Tab Impact Analysis GUIViewing a Detailed Report For the Affected Pair Detailed Report For the Affected Pair Accumulating Affected Parties Disabling Impact AnalysisAccumulating the Affected Parties In an Alarm Accumulating the Affected Parties In the Correlation TreeUpdating Affected Severity Over Time OL-14284-01 BGP process up Shut down on a device Supported Service AlarmsAll ip interfaces Sent when all IP interfaces True Warnin Shelf Out Rx Dormant Tx DormantLink Over Utilized OL-14284-01 Event and Alarm Correlation Flow Figure B-1 Event Correlation Flow VNE level Software Function ArchitectureEvent Correlation Flow Event Creation VNE levelEvent Correlation Alarm Sending Event Correlator Correlation Logic Event CorrelatorPost-Correlation Rule 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.

In terms of security, Cisco Systems 3.6 integrates robust cybersecurity measures directly into its architecture. It incorporates Cisco's SecureX framework, which provides centralized visibility and control across the entire security stack. This feature allows organizations to respond rapidly to threats, leveraging threat intelligence and automated response mechanisms to mitigate risks effectively.

Another notable characteristic is improved compatibility with cloud environments. With the rise of hybrid cloud models, Cisco Systems 3.6 offers seamless integration capabilities that enable businesses to connect their on-premises networks with public and private cloud infrastructures. This ensures greater flexibility and enhanced performance for cloud-based applications.

Cisco also emphasizes software-defined networking (SDN) with its updated platform. This approach allows for greater agility, enabling network administrators to programmatically manage resources through a centralized interface. SDN facilitates rapid deployment of services and applications, optimizing the overall user experience.

Cisco Systems 3.6 also boasts enhanced collaboration tools, fostering improved communication across teams. Featuring advanced video conferencing and messaging capabilities, it enhances productivity and streamlines processes, regardless of employee location. These tools are designed to support remote work environments, which have become increasingly important in today's business landscape.

Furthermore, energy efficiency is a core aspect of Cisco Systems 3.6. The system is designed to optimize power consumption and reduce overall operating costs, aligning with global sustainability goals. The efficient design prioritizes environmentally friendly practices while still delivering high performance.

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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