Chapter 4 Advanced Correlation Scenarios

IP Interface Failure Scenarios

The following correlation information is provided:

device unreachable on the CE:

The Syslog alarm is correlated by flow to the possible root cause, for example, a device unreachable alarm on CE1

ATM Examples

Similar examples involving ATM technology have the same result, assuming that a failure in an unmanaged network causes the status of the IP interface to change to down (ILMI is enabled).

Ethernet, Fast Ethernet, Giga Ethernet Examples

Interface Example 6

In this example there is an unreachable CE due to a failure in the unmanaged network.

Figure 4-8

Interface Example 6

 

 

CE1 unreachable

 

PE1

 

 

 

 

 

Etherenet

 

 

 

 

 

cloud

 

 

 

Subinterface with

 

 

Subinterface with

 

 

 

IP configured

 

 

 

IP configured

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The following failures are identified in the network:

A device unreachable alarm is generated on the CE.

A cloud problem alarm is generated.

The following correlation information is provided:

No alarms are generated on a PE for Layer1, Layer2 or for the IP layers.

The device unreachable alarm is correlated to the cloud problem alarm.

Interface Example 7

In this example there is a link down on the PE that results in the CE becoming unreachable.

Figure 4-9

Interface Example 7

 

 

CE1 unreachable

 

PE1

 

 

 

 

 

Etherenet

 

 

 

 

 

cloud

 

 

 

 

 

 

 

Link is "down"

 

 

 

 

 

Subinterface with

 

 

 

Subinterface with

IP configured

 

 

 

IP configured

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Cisco Systems 3.6 specifications ATM Examples, Ethernet, Fast Ethernet, Giga Ethernet Examples

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 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.

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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.

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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.