Chapter3

Cisco Carrier Sensitive Routing Application Operations

Activating CSR

CSR as a User Process

While the CSR is running as a daemon, other instances may run as user processes. If all instances are connected to the same database at startup, startup errors can occur because the following processes are attempted by all instances:

•Listening on the same TCP port for incoming connections

•Attempting to connect to the same gatekeepers as the same application and priority

•Listening to the database for notification events from the GUI such as shutdown, update dataset, update logging level, and update gatekeeper connections

You can create other databases with the command createcsrdb; for example, createcsrdb csrdb2. You can connect to each of the databases separately by using the GUI and provisioning the database accordingly.

Step 1 To activate CSR, enter the following command:

csr csrdb1 &

This command activates CSR by connecting it to a different database and typing the process to a console. Step 2 Optionally, to run CSR continuously after logout, enter the following command:

nohup

Multiple Instances

To run multiple CSR instances, all but one must run as a user process. If all instances are connected to the same database at startup, startup errors occur because the following processes are attempted by all instances:

•Listening on the same TCP port for incoming connections

•Attempting to connect to the same gatekeepers as the same application and priority

•Listening to the database for notification events from the GUI such as shutdown, update dataset, update logging level, and update gatekeeper connections

You can create other databases with the command createcsrdb; for example, createcsrdb csrdb1, createcsrdb csrdb2, createcsrdb csrdb3. You can connect to each of the databases separately by using the CSR GUI and provisioning the databases accordingly.

Step 1 To start multiple instances of CSR that are connected to different databases such as csrdb1, csrdb2, csrdb3, enter the following commands:

csr csrdb1 &

csr csrdb2 &

csr csrdb3 &

This method ties the process to a console.

Step 2 Optionally, to run CSR continuously after logout, enter the following command:

nohup

Cisco Carrier Sensitive Routing User Guide

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Cisco Systems Version 1.1 manual Multiple Instances, CSR as a User Process
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Version 1.1 specifications

Cisco Systems Version 1.1 introduced significant advancements in network technology, setting a new standard for performance, security, and management in the ever-evolving landscape of enterprise networking. This version is characterized by a robust architecture that supports a wide array of devices and applications, ensuring seamless connectivity and efficiency for businesses of all sizes.

One of the standout features of Cisco Systems Version 1.1 is its enhanced routing capabilities. The introduction of advanced routing protocols enables more efficient data handling and traffic management. This improvement translates into reduced latency and optimized bandwidth utilization, which are crucial for organizations relying on real-time applications like VoIP and video conferencing.

Another notable technology integrated into Version 1.1 is the expanded support for Software-Defined Networking (SDN). This allows network administrators to manage their network resources more flexibly and dynamically, adapting quickly to changing demands. With SDN, Cisco provides a centralized control plane that enables automated provisioning and orchestration of network services, ultimately leading to reduced operational costs and improved service quality.

Security improvements are also a hallmark of Cisco Systems Version 1.1. The incorporation of advanced intrusion detection and prevention systems (IDPS) enhances the overall security posture of networks. Additionally, built-in encryption protocols ensure that data is transmitted securely, safeguarding sensitive information from potential cyber threats.

Furthermore, Version 1.1 emphasizes user experience with its intuitive management interface. Network monitoring and troubleshooting tools have been redesigned to be more user-friendly, allowing IT teams to quickly identify and resolve issues, thereby minimizing downtime and improving overall network reliability.

Scalability is another critical characteristic of this version, designed to accommodate the growth of companies. Whether an organization is expanding its physical infrastructure or transitioning to cloud-based services, Cisco Systems Version 1.1 provides the flexibility necessary to scale operations without sacrificing performance.

In summary, Cisco Systems Version 1.1 is a comprehensive networking solution that integrates advanced routing capabilities, SDN support, enhanced security features, and a user-friendly management interface. Its scalability ensures that it can meet the growing demands of modern enterprises, making it a pivotal choice for businesses looking to optimize their networking infrastructure. As companies continue to embrace digital transformation, Cisco Systems Version 1.1 stands out as a reliable foundation for future growth and innovation.
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