The interval between two RADIUS Accounting Interim Update messages can be configured in the RADIUS accounting policy with the update-interval command, for example:
config
subscr-mgmt
radius-accounting-policy "acct-policy-1" create
update-interval 60
update-interval-jitter absolute 600
A RADIUS specified interim interval (attribute [85] Acct-Interim-Interval) overrides the CLI configured value.
By default, a random delay of 10% of the configured update-interval is added to the update-interval between two Accounting Interim Update messages. This jitter value can be configured with the update-interval-jitter to an absolute value in seconds between zero and 3600. The effective maximum random delay value is the minimum value of the configured absolute jitter value and 10% of the configured update-interval.
A value of zero sends the Accounting Interim Update message without introducing an additional random delay.