3Com 10014298 manual Configuring ACLs, Be done in sequence, Configuring the Time, Range

Configuring ACLs 151

Configuring ACLs	ACL configuration includes the tasks described in the following sections:
	■ Configuring the Time Range
	■ Selecting the ACL Mode
	■	Defining an ACL
	■	Activating an ACL
	Configure the time range first, then define the ACL (using the defined time range
	in the definition), followed by activating the ACL to validate it. These steps must
	be done in sequence.
Configuring the Time	The process of configuring a time-range includes configuring the hour-minute
Range	range, date range, and period range. The hour-minute range is expressed in the
	units of minutes and hour. The date range is expressed in the units of date, month,
	and year. The periodic time range is expressed by the day of the week.
	Use the following command to set the time range in system view.
	Table 162 Set the Absolute Time Range
	Operation		Command
	Set the absolute time range		time-rangetime-name { start-time to
			end-time days-of-the-week from start-time
			start- date to end-time end-date ]
	Delete the absolute time range		undo time-rangetime-name [ start-time to
			end-time days-of-the-week ] [ from start-time
			start- date] [to end time end-date ]

When the start-timeand end-timeare not configured, they are set to define one day. The end time must be later than the start time.

When the end-timeend-dateis not configured, it will be all the time from now to the latest date that can be displayed by the system. The end time must be later than the start time.

Selecting the ACL Mode The Switch 7750 can only have one of two modes, ip-basedor link-based. In either mode, only L2 ACLs can be defined, activated, and cited by other applications.

You can use the following command to configure a traffic classification rule in ip-basedor link-basedmode.

Perform the following configuration in system view.

Table 163 Select ACL Mode

Operation	Command
Select ACL mode	acl mode { ip-based link-based }

By default, the Switch 7750 uses ip-basedmode and the L3 traffic classification rule.

Defining an ACL The Switch 7750 supports several kinds of ACLs.