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1. From the Rule Base choose the rule you want to modify.

2. Right-click in the Action column of the selected rule and select Edit Properties. The QoS Action

Properties window is displayed.

 If the Action Type of the rule is defined as Simple, the QoS Action Properties window opens:

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 If the Action Type of the rule is defined as Advanced, the following QoS Action Properties

window opens:

Figure 5-18 QoS Action Properties Advanced

Note - When Express QoS has been installed, Advanced Actions are not available.

3. The following properties are displayed for a QoS rule with a simple action type. You can change any of these fields:

In the Action Type area:

 Simple: The full set of actions with the exception of the Guarantee Allocation and the per

connection limit features.

 Advanced: The full set of actions with the Guarantee Allocation feature included.

 In the VPN Traffic area:

 Allow rule only to encrypted traffic: Check this box if you want the rule to be matched only by

VPN traffic. If you do not check this field, rules will be matched by all traffic types, both VPN and non-VPN traffic. VPN traffic means traffic that is encrypted in this same gateway by IPSec VPN. This field does not apply to traffic that was encrypted prior to arriving to this gateway. This type of traffic can be matched using the "IPSec" service. For further explanation on how to use this check box for prioritizing VPN traffic over non-VPN, see Example of a Rule Matching VPN Traffic (on page 21).  In the Action Properties area you can define the restrictions on bandwidth for connections to which

the rule applies in the following fields:

 Rule Weight: Enables you to define the weight of the rule. This field is checked by default and has

It is recommended to leave this value as is to avoid a complete loss of bandwidth. For detailed information see Weight (on page 19).

Important - 0 rate in conjunction with 0 guarantee can lead to the

rule's complete loss of bandwidth. To prevent this from happening, retain some ratio in the Rule Weight. The default is 10.

 Rule Limit: Enables you to restrict the total bandwidth consumed by the rule. For detailed

information see Limits (on page 19).

Note - When using weights or guarantees, the weighted fair queuing algorithm that QoS makes use of assures that no bandwidth is ever wasted. Spare bandwidth is divided among the backlogged rules. However, if you set a rule limit, it will not use spare bandwidth above this limit.

 Rule Guarantee: Enables you to define the absolute bandwidth allocated to the rule. For detailed

information see Guarantees (on page 19).

Note - The number you enter for the Rule Guarantee cannot be larger than the Rule Limit.

4. (Optional) The following additional properties are displayed for a QoS rule with an advanced action type. You can change any of these fields:

In the Limit area:

 Rule Limit: Enables you to restrict the total bandwidth consumed by the rule. For detailed

information see Limits (on page 19).

Note - When using weights or guarantees, the weighted fair queuing algorithm that QoS makes use of assures that no bandwidth is ever wasted. Spare bandwidth is divided among the backlogged rules. However, if you set a rule limit, it will not use spare bandwidth above this limit.

 Per connection limit: Enables you to set a rule limit per connection.

Note - The number you enter for the Rule Guarantee cannot be larger than the Rule Limit.

In the Guarantee Allocation area:

 Guarantee: Enables you to allocate a minimum bandwidth to the connections matched with a rule.

For detailed information see Guarantees (on page 19).

 Per rule: Enables you to define the absolute bandwidth allocated to the rule.

Note - The number you enter for the Per rule cannot be larger than the Rule Limit.

 Per connection: Enables you to manage the bandwidth at the connection-level.

 Per connection guarantee: Enables you to restrict the absolute bandwidth allocated per

connection.

 Number of guaranteed connections: Enables you to allocate a minimum number of guaranteed

connections.

Note - The Number of guaranteed connections multiplied by the

Per connection guarantee cannot be greater than the rule limit.

 Accept additional connections: Check this checkbox to allow connections without per connection

guarantees to pass through this rule and receive any left over bandwidth. Enter the maximum amount of bandwidth that is allowed for this option in the text box. This only occurs if all other conditions have been met.

Note - Select a non-zero rule weight when Accept additional non-

guaranteed connections is checked.

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To Reset the Rule Actions to Default Values

1. From the Rule Base choose the rule you want to modify.

2. Right-click in the Action column of the selected rule and select Reset to Default. The action properties for the selected rule are reset to their default values. The default values are defined in the QoS page of

the Global Properties window (see Defining QoS Global Properties (on page 50)).