Outlines the function of Changeover tool, which guides network transitions by providing sequenced routing configuration changes and minimizing congestion during interim states.
The Changeover tool is a Cisco Crosswork Planning tool that
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provides a step-by-step sequence of routing configuration changes to move a network safely from an initial configuration to a pre-specified final configuration, and
optimizes the order of changes to minimize network congestion during intermediate configurations.
Cisco Crosswork Planning lets you model the topology, routing, and utilization of a currently operational network. It enables exploration of modifications, such as adjusting interface metrics or explicit LSP routings to obtain a new routing configuration.
Supported configuration changes between initial and final plans include:
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Changes to interface metrics
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Changes to LSP configurations
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Changes of circuits and nodes between active and inactive states
An individual step in the changeover sequence consists of:
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A single metric change on a specific interface
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LSP configuration changes on all LSPs sourced from a specific node
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The activation or inactivation of a specific circuit or node