Everything you ever wanted to know about security policy management, and much more.
Behind every important business process is a solid network infrastructure that lets us access all of these services. But for an efficient and available network, you need an optimization framework to maintain a strong network lifecycle. It can be carried out as a lifecycle process to ensure continuous monitoring, management, automation, and improvement.
Keep in mind, there are many solutions to help you with connectivity management. Regardless of the tools and techniques you follow, there needs to be a proper lifecycle plan for you to be able to manage your network efficiently. Network lifecycle management directs you on reconfiguring and adapting your data center per your growing requirements.
The basic phases of a network lifecycle
ITIL framework
ITIL stands for Information Technology Infrastructure Library, which is an IT management framework. ITIL put forth a similar lifecycle process focusing on the network services aspect.
The phases, as per ITIL, are:
PPDIOO framework
PPDIOO is a network lifecycle model proposed by Cisco, a learning network services provider. This framework adds to the regular DIO framework with several subtasks, as explained below.
Plan
The overall organizational requirements, network strategy, high-level conceptual architecture, technology identification, and financial planning are all carried out in this phase.
Planning involves identifying goal-based network requirements, user needs, assessment of any existing network, gap analysis, and more. The tasks are to analyze if the existing infrastructure or operating environment can support the proposed network solution. The project plan is then drafted to align with the project goals regarding cost, resources, and scope.
Network design experts develop a detailed, comprehensive network design specification depending on the findings and project specs derived from previous phases.
Build
The build phase is further divided into individual implementation tasks as part of the network implementation activities. This can include procurement, integrating devices, and more. The actual network solution is built as per the design, focusing on ensuring service availability and security.
Operate
The operational phase involves network maintenance, where the design’s appropriateness is tested. The network is monitored and managed to maintain high availability and performance while optimizing operational costs.
Optimize
The operational phase gives important data that can be utilized to optimize the performance of the network implementation further. This phase acts as a proactive mechanism to identify and solve any flaws or vulnerabilities within the network. It may involve network redesign and thus start a new cycle as well.
Why develop a lifecycle optimization plan?
A lifecycle approach to network management has various use cases. It provides an organized process, making it more cost-effective and less disruptive to existing services.
Reduced total network ownership cost
Early on, planning and identifying the exact network requirements and new technologies allow you to carry out a successful implementation that aligns with your budget constraints.
Since there is no guesswork with a proper plan, you can avoid redesigns and rework, thus reducing any cost overheads.
High network availability
Downtimes are a curse to business goals. Each second that goes by without access to the network can be bleeding money. Following a proper network lifecycle management model allows you to plan your implementation with less to no disruptions in availability.
It also helps you update your processes and devices before they get into an outage issue. Proactive monitoring and management, as proposed by lifecycle management, goes a long way in avoiding unexpected downtimes. This also saves time with telecom troubleshooting.
Better business agility
Businesses that adapt better thrive better. Network lifecycle management allows you to take the necessary action most cost-effectively in case of any quick economic changes.
It helps you prepare your systems and operations to accommodate the new network changes before they are implemented. It also provides a better continuous improvement framework to keep your systems up to date and adds to cybersecurity.
Improved speed of access
Access to the network, the faster it is, the better your productivity can be. Proper lifecycle management can improve service delivery efficiency and resolve issues without affecting business continuity.
The key steps to network lifecycle management
Let us guide you through the various phases of network lifecycle management in a step-by-step approach.
Prepare
Establish your goals, gather all your business requirements, and arrive at the immediate requirements to be carried out.
Create the first draft of your network design. This can be a conceptual model of how the solution will work and need not be as detailed as the final design would be.
Do the financial planning for the project detailing the possible challenges, budget, and expected profits/outcomes from the project.
Plan
This step is necessary to properly formulate an implementation plan that will be the least disruptive to your existing services.
Gather all relevant details, such as the hardware and software apps you use in your network. Measure the performance and other attributes and assess them against your goal specifics.
Measure the current system’s performance levels and compare them with the expected outcomes that you want to achieve.
With the collected information, you should be able to draft the implementation plan for your network solution. This plan should essentially contain the various tasks that must be carried out, along with information on milestones, responsibilities, resources, and financing options.
Design
Expand on your initial high-level concept design to create a comprehensive and detailed network design. It should have all the relevant information required to implement your network solution.
Take care to include all necessary considerations regarding your network’s availability, scalability, performance, security, and reliability. Ensure the final design is validated by a proper approval process before being okayed for implementation.
Implementation
The Implementation phase must have a detailed plan listing all the tasks involved, the steps to rollback, time estimations, implementation guidelines, and all the other details on how to implement the network design.
Before implementing the design in the production environment, starting with a lab setting is a good idea. Implement in a lab testing environment to check for any errors and how feasible it is to implement the design. Improve the design depending on the results of this step.
Implement in an iterative process starting with smaller deployments. Start with pilot implementations, test the results, and if all goes well, you can move towards wide-scale implementation.
When your pilot implementation has been successful, you can move toward a full-scale deployment of network operations.
Operate
When you move to the Operational phase, the major tasks will be monitoring and management.
This is probably the longest phase, where you take care of the day-to-day operational activities such as:
Optimize
This phase essentially kicks off another network cycle with its own planning, designing, workflows, and implementation.
Integrate network lifecycle with your business processes
Automate network lifecycle management with AlgoSec
AlgoSec’s unique approach can automate the entire security policy management lifecycle to ensure continuous, secure connectivity for your business applications.
The approach starts with auto discovering application connectivity requirements, and then intelligently – and automatically – guides you through the process of planning changes and assessing the risks, implementing those changes and maintaining the policy, and finally decommissioning firewall rules when the application is no longer in use.
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