Symantec 10521146 Administration Guide - Page 313
Setting Event Queue Length, Configuration, Network Security Parameters, Select Node
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Advanced configuration 313 Configuring advanced parameters To configure node parameters 1 Click Configuration > Node > Network Security Parameters. 2 In Select Node, choose the node from the pull-down list, and click OK. 3 In the left pane, click Event Destination Hashes. 4 In the lower right pane, enter the value. 5 Click Apply. 6 In Apply Changes To, select the node or subset of nodes that you want to apply the parameter to. 7 Click OK to save the changes to this sensor and close. Caution: Take note of the following precautions: ■ Before making such changes, we recommend that you consult our support team at http://www.symantec.com/techsupp/enterprise ■ Make sure that the system has enough RAM to support this advanced parameter. ■ Restart Symantec Network Security for changes to this parameter to take effect. Setting Event Queue Length Event Queue Length prevents the system from becoming overloaded during a denial-of-service attack. This parameter indicates the length of the event queue by setting the maximum number of elements that can wait in line in a particular hash bucket. This controls the rate that event data enters the system. The default value is set to 10 for optimum performance, and you do not need to change it under most circumstances. If a network experiences a high rate of DoS or other flood attacks, an increased number of event queues can prevent event expiration. Because there is little or no difference between individual events related to a flood incident, no critical information is lost by expiring the events. To configure node parameters 1 Click Configuration > Node > Network Security Parameters. 2 In Select Node, choose the node from the pull-down list, and click OK. 3 In the left pane, click Event Queue Length. 4 In the lower right pane, enter the value.