Cisco Systems 3.6 specifications Event Processing Overview

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Chapter 1 Fault Management Overview

Event Processing Overview

The propagated severity of the alarm (the whole event sequence) is always determined by the last event in the sequence. In the above example, when the link-down alarm is open it will have critical severity; when it clears it moves to normal severity. An exception to this rule is the informational event (severity level of info) such as user acknowledge event, which does not change the propagated severity of the sequence (the alarm).

Each ticket assumes the propagated severity of the alarm with the topmost severity, within all the alarms in the correlation hierarchy at any level.

Note Each alarm does not assume the propagated severity of the correlated alarms beneath it. Each alarm assumes its severity only from its internal event sequence, as described above, while the ticket assumes the highest severity among all the alarms in the correlation tree.

Event Processing Overview

Cisco ANA provides a customizable framework for identifying and processing raw events. The raw events are collected into the Event Manager, forwarded to their respective VNE, and then processed as follows:

Step 1 The event data is parsed to determine its source, type, and alarm-handling behavior.

Step 2 If the event type is configured to try and correlate, the VNE attempts to find a compliant cause alarm. This is done in the VNE fabric.

Step 3 The event fields are looked up and completed.

Step 4 The event is sent to the Cisco ANA gateway, where:

•The event is written to the event database.

•If the event belongs to an alarm, it is attached to its respective event sequence and correlated to the respective root-cause alarm within the ticket, or a new sequence and new ticket is opened.

•If the event is marked as ticketable, and it did not correlate to any other alarm, a new ticket will be opened where the alarm that triggered the ticket will be the root cause of any alarms in the correlation tree.

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

 

OL-14284-01

1-7

 

 

 

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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 by Flow Root-Cause AlarmsCorrelation Flows Correlation by KeyUsing 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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