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 more 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 Configuration in the function area. Choose Security Services > ACL Config > Validity Time Range to open the Validity Time Range page.
Click Create to open the Create Time Range page, as shown in Figure 1.
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.
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 OK.
Modify a time range.
Click Configuration in the function area. Choose Security Services > ACL Config > Validity Time Range to open the Validity Time Range page.
Click a time range name to open the Modify Time Range page, as shown in Figure 2.