This section explains LCM interface exclusions, which allow interfaces to be temporarily removed from LCM mitigation actions.
You can temporarily pause LCM from including an interface for mitigations in either Automated or Manual modes. When an interface is paused, it will no longer be considered as part of a recommendation, and any existing solutions that the interface participates in will be removed. Pausing operations in Automated mode may be necessary in many use cases, such as the following:
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Where deployed solutions do not result in the intended resolution
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When there is uneven ECMP traffic
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When there are policies that do not carry traffic
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When an interface is continuously throttling between different solutions
LCM may automatically pause an interface when certain anomalies are detected, for example, when there is:
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No LCM SR policy traffic
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Excessive imbalance in LCM policy traffic
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Excessive LCM oscillations or removals per hour
In these circumstances, the user may perform a corrective action, and manually resume the interface.
Pause and resume an interface
From the Actions column of the LCM Operational Dashboard, select Pause for the interface you would like to exclude from LCM calculations. To include the interface in LCM calculations again, select Resume.
Pausing multiple interfaces at the same time may result in requests timing out. However, each request will be queued and displayed on the dashboard.
