Chapter 4 Advanced Correlation Scenarios

BGP Process Down Alarm

BGP Process Down Alarm

The BGP process down alarm is issued when the BGP process is shut down on a device. If a BGP process is shutdown on a device, the BGP neighbor down events will correlate to it as well as all the device unreachable alarms from the CE devices that lost connectivity to the VRF due to the BGP process down on the route reflector. The syslogs that the device issues expedite the status check of the BGP process and BGP neighbors.

MPLS Interface Removed Alarm

The MPLS interface removed alarm is issued when a MPLS IP interface is removed and there is no MPLS TE tunnel on the same interface. In addition, this may lead to two black holes on either side and MPLS black hole found alarms may be issued. The black holes will send a flood message to the PEs and check for any broken LSPs, and broken LSP discovered alarms may be issued. The MPLS black hole found and broken LSP discovered alarms are correlated to the MPLS interface removed alarm. The syslogs that the device issues expedite the status check of the label switching table and MPLS status.

LDP Neighbor Down Alarm

The "LDP neighbor down" alarm is issued if a session to an LDP neighbor goes down. This can happen as the result of a failure in the TCP connection used by the LDP session, or if the interface is no longer running MPLS. The “LDP neighbor down” alarm is cleared by a corresponding “LDP neighbor up” alarm.

The alarm is issued when a peer is removed from the table in the LDP Neighbours tab. The alarm runs a correlation flow to detect what event happened in the network core, and then performs a Root Cause Analysis to find its root cause. The alarm initiates an IP based flow towards the “Peer Transport Address" destination. If an alarm is found during the flow, it will correlate to it.

Note The "LDP neighbor down" alarm can correlate to the “MPLS interface removed" alarm. See MPLS Interface Removed Alarm, page 4-17.

 

 

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

 

 

 

 

 

 

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Cisco Systems 3.6 specifications BGP Process Down Alarm, Mpls Interface Removed Alarm, LDP Neighbor Down Alarm
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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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