50 Contact Nortel technical support• Have you search the solutions database? Were any related solutionsfound? Is there currently a workaround for this issue?• Have you recently changed or upgraded your system, your network,or a custom application? (For example, has any configuration or codebeen changed?)When were these changes made? Provide the date and time. Whomade these changes? Were the changes made by a partner orcustomer? Provide the names of the individuals who made thechanges.Also provide Nortel Technical Support with the following information:• A copy of your configuration files• A detailed network topology diagram• Log filesGetting help from the Nortel Web siteThe best way to get technical support for Nortel products is from the NortelTechnical Support Web site:http://www.nortel.com/supportThis site provides quick access to software, documentation, bulletins, andtools to address issues with Nortel products. More specifically, the siteenables you to:• download software, documentation, and product bulletins• search the Technical Support Web site and the Nortel Knowledge Basefor answers to technical issues• sign up for automatic notification of new software and documentationfor Nortel equipment• open and manage technical support casesGetting help over the phone from a Nortel Solutions CenterIf you do not find the information you require on the Nortel TechnicalSupport Web site, and have a Nortel support contract, you can also gethelp over the phone from a Nortel Solutions Center.In North America, call 1-800-4NORTEL (1-800-466-7835).Outside North America, go to the following Web site to obtain the phonenumber for your region:Nortel TPS 4.7Threat Protection System Troubleshooting GuideNN47240-700 01.01 Standard11 2007Copyright © 2007 Nortel Networks.