By configuring the effective period, you can apply an ACL in a certain period of time.
Context
- A time range specifies a period of time. In practice, users may want certain ACL rules to be valid during a certain period but be invalid out of the period. That is, the ACL rules are used to filter packets based on the time range. In this case, you can set one or multiple time ranges, and apply the time ranges to a created ACL. Then, packets can be filtered based on the set time ranges.
- An effective period can contain periodic time ranges and valid period. A periodic time range takes effect on a certain day in a week. A validity period contains the start time and the end time.
Procedure
- Create a time range.
- Click Create to open the Create Time Range page.
Table 1 describes the parameters on the page.
Table 1 Create Time Range Parameter
Description
Time range name
Indicates the name of the created time range. It is mandatory.
Time Range
Indicates a validity period.
A validity period contains the start time and the end time. You can configure multiple validity periods by clicking
. To delete validity periods, select the records you want to delete and click 
.NOTE:If only one validity period is created, the validity period takes effect when the current time is within it.
Validity Time
Indicates the periodic time range.
A periodic time range takes effect on a certain day in a week. You can configure multiple periodic time ranges by clicking. To delete time ranges, select the records you want to delete and click .NOTE:If only one periodic time range is created, the time range takes effect when the current time is within the periodic time range.
- Set the required parameters.
NOTE: - If an effective period contains both time range and validity time, the effective period takes effect only when the current time is within the time range and validity time.
- The start time and end time of the time range can be earlier than the current time.
- Either the time range or validity time must be set.
- Click Create to open the Create Time Range page.
- Modify a time range.
- Click a time range name to open the Modify Time Range page.
NOTE:
- Table 1 describes the parameters on the page.
- The time range name cannot be modified.
- The time range and validity time can only be deleted, but cannot be modified.
- Click a time range name to open the Modify Time Range page.
- Delete a time range.
- Select a record that you want to delete and click Delete. The system asks you whether to delete the record.
NOTE:
- To select a record, click the checkbox of the record.
- To delete records in batches, click the checkboxes of records.
- Select a record that you want to delete and click Delete. The system asks you whether to delete the record.