Define destination cache settings for NetLinks in Outbound Multi-Link elements

Information about the performance of each NetLink is cached so that no new measurement is made if a new connection is opened to the same destination within a short time period. You can optionally define the duration of the cached information.

For more details about the product and how to configure features, click Help or press F1.

Steps

In the Outbound Multi-Link Properties dialog box, select the Advanced tab.
Deselect Default.
Enter the Timeout (in seconds) after which a new measurement of NetLink performance is made.
The default is 3600 seconds.
Enter the number of Maximum Retries for checking each NetLink.
The default is 2.
Click OK.

Outbound Multi-Link Properties dialog box

Use this dialog box to define outbound multi-link properties.

Option	Definition
Name	Specifies the Outbound Multi-Link name.
Category	Categories allow you to flexibly filter your Management Client view.
Select	Opens the Category Selection dialog box.
Comment	An optional comment for your own reference.
Method	Defines the method for link selection. Round Trip Time — The firewall periodically probes the NetLinks to test them for speed and selects the fastest available active NetLink for each new outbound connection. Ratio — Traffic is distributed between all the available active NetLinks according to the relative bandwidth of each NetLink. The NetLink with the highest bandwidth is assigned the largest portion of the traffic.

Option	Definition
Multi-Link Members section
NetLink	Shows the selected Netlink.
Type	Shows whether the Netlink is active or standby. Active — Traffic is routed through the NetLink according to the Method you specify in the Outbound Multi-Link element properties. Standby — Traffic is only routed through the NetLink if all primary (active) NetLinks are unavailable.
Selected Range	Specifies the IP address range for dynamic source address translation (NAT) for the internal source IP addresses on this NetLink.
QoS Classes	Specifies the QoS Classes for traffic handled by the NetLink.
Add	Opens the Multi-Link Member dialog box.
Edit	Opens the Multi-Link Member dialog box for the selected Multi-Link Member.
Remove	Removes the selected Multi-Link Members.

Option	Definition
QoS related settings section
Name	Shows the QoS Class and the Netlink name.
NetLink Role	Shows whether the NetLink is Active or Standy.
Method	The method for link selection. Round Trip Time — The firewall periodically probes the NetLinks to test them for speed and selects the fastest available active NetLink for each new outbound connection. Ratio — Traffic is distributed between all the available active NetLinks according to the relative bandwidth of each NetLink. The NetLink with the highest bandwidth is assigned the largest portion of the traffic. No Load Balancing — Traffic is not balanced between the NetLinks based on the QoS Class.