13-Security Configuration Guide

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02-Time range configuration
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02-Time range configuration 46.80 KB

Configuring time ranges

About time ranges

You can implement a service based on the time of the day by applying a time range to it. A time-based service takes effect only in time periods specified by the time range. For example, you can implement time-based ACL rules by applying a time range to them.

The following basic types of time ranges are available:

·     Periodic time range—Recurs periodically on a day or days of the week.

·     Absolute time range—Represents only a period of time and does not recur.

The active period of a time range is calculated as follows:

1.     Combining all periodic statements.

2.     Combining all absolute statements.

3.     Taking the intersection of the two statement sets as the active period of the time range.

Restrictions and guidelines: Time range configuration

When you configure the ACL hardware mode, follow these restrictions and guidelines:

·     If a time range does not exist, the service based on the time range does not take effect.

·     You can create a maximum of 1024 time ranges, each with a maximum of 32 periodic statements and 12 absolute statements.


1.     Enter system view.


2.     Create or edit a time range.

time-range time-range-name { start-time to end-time days [ from time1 date1 ] [ to time2 date2 ] | from time1 date1 [ to time2 date2 ] | to time2 date2 }

If an existing time range name is provided, this command adds a statement to the time range.

Display and maintenance commands for time ranges

Execute the display command in any view.




Display time range configuration and status.

display time-range { time-range-name | all }