56 | Technical Supportw w w . d e l l . c o m | s u p p o r t . d e l l . c o mContacting the Technical Assistance CenterLocating Serial NumbersYou can use the show switch unit command in the CLI to access the serial number of the designatedswitch (unit = stack ID). The serial number of the chassis is located on a sticker on the back of the chassisin the middle. The serial number is below the bar code and has 11integers (numbers).How to Contact Dell Force10TACLog in to iSupport at http://www.force10networks.com/support/, and select the ServiceRequest tab.Information to Submit WhenOpening a Support Case• Your name, company name, phone number, and E-mail address• Preferred method of contact• Model number• Serial Number (see Locating Serial Numbers on page 56)• Software version number• Symptom description• Screen shots illustrating the symptom, including any error messages. These can include:• Output from the show tech-support [non-paged] command (This report is very long, sothe storage buffer in your terminal program should be set high.)• Output from the show logging eventlog [unit] command, where unit is the stack ID ofthe member unit that experienced the failure (This report is included as a section in theoutput of show tech-support.)• Console captures showing the error messages• Console captures showing the troubleshooting steps taken• Saved messages to a syslog server, if one is usedManaging Your Case Log in to iSupport, and select the Service Request tab to view all open cases and RMAs.Downloading SoftwareUpdatesLog in to iSupport, and select the Software Center tab.Technical Documentation Log in to iSupport, and select the Documents tab. This page can be accessed withoutlogging in via the Documentation link on the iSupport page.Contact Information E-mail: support@force10networks.comWeb: http://www.force10networks.com/support/Telephone:US and Canada: 866.965.5800International: 408.965.5800