CRON

The CRON feature supports the SAA functions and time-based policy scheduling to meet time of day requirements. CRON functionality includes the ability to specify the commands to be run, their scheduling, including one-time only functionality (oneshot), interval and calendar functions, and the storage location for the script output. CRON can also specify the relationship between input, output, and schedule. Scheduled reboots, peer turn ups, service assurance agent tests, and OAM events, such as connectivity checks or troubleshooting runs, can also be scheduled.

CRON features are saved to the configuration file.

CRON features run serially with at least 255 separate schedules and scripts. Each instance can support a schedule where the event is repeatedly executed.

The following CRON elements are supported:

• action

  This configures parameters for a script including the maximum amount of time to keep the results from a script run, the maximum amount of time a script may run, the maximum number of script runs to store and the location to store the results.

• schedule

  The schedule function configures the type of schedule to run, including one-time only (oneshot), periodic, or calendar-based runs. All runs are determined by month, day of month or weekday, hour, minute and interval (seconds).

• script

  The script command opens a new nodal context that contains information about a script.

• time range

  ACLs and QoS policy configurations may be enhanced to support time-based matching. CRON configuration includes time-matching with the schedule sub-command. Schedules are based on events; time-range defines an end-time used as a match criteria.

• time of day

  Time of Day (TOD) suites are useful when configuring many types of time-based policies or when a large number of SAPs require the same type of TOD changes. The TOD suite may be configured while using specific ingress or egress ACLs or QoS policies, and is an enhancement of the ingress and egress CLI trees.