> MME Service Thresholds
> MME Service thresholds generate alerts or alarms for the average number of calls setup. A threshold can be configured to report this information on entire system for MME service. Thresholds can also be configured for session registration response failures, discarded interface registration requests, discarded network entry registration acknowledgments for MME services.
> Alerts or alarms are triggered for these MME thresholds based on the following rules:

> • | Enter condition: When the actual average of call setups or actual number of failures or discards passes, or is equal to, the configured Threshold value an alert or alarm is set.

> • | Clear condition: When the actual average of call setups or actual number of failures or discards passes below the Threshold value the alert or alarm is cleared.

> If a trigger condition occurs within the polling interval, the alert or alarm is not generated until the end of the polling interval.
> Saving Your Configuration
> When you configure thresholds they are not permanent unless you save the changes. When you have completed configuring thresholds, save your configuration as described in the Verifying and Saving Your Configuration chapter.
> System-Level MME Service Thresholds
> The system-level thresholds for MME Service-Level can be configured to monitor thresholds for MME authentication, session registration response failures, discarded registration requests for individual or all MME services.
> Following thresholds can be configured for the MME service-level:

> • | Number of MME authentication failures

> • | Number of MME session registration failures

> Configuring System-level MME Service Thresholds
> Use the following example to configure and enable these thresholds:
> configuration
> threshold mme-auth-failure <high_thresh> [ clear <low_thresh>]
> threshold mme-attach-failure <high_thresh> [ clear <low_thresh> ]
> threshold total-mme-sessions <high_thresh> [ clear <low_thresh>]
> threshold poll mme-auth-failure interval <dur>
> threshold poll mme-attach-failure interval <dur>
> threshold poll total-mme-session interval <dur>
> threshold monitoring mme-service
> end

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