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| 3.6 |  | Implementing Physical Layer Solutions |
| 3.6.6 |  | Solving common problems – support resources |

Online resources represent an invaluable tool for the network troubleshooter. The Internet has become a very valuable corporate tool for those seeking answers on specific technical problems. It also potentially represents a vast pool of experience-based information.

The Cisco systems web site reached at http://www.cisco.com/ incorporates customer support, press-release information and a free knowledge base tool on all things Cisco. This site represents an invaluable resource for Cisco customers, support staff and for network administration, troubleshooting and design personnel in general. It contains troubleshooting, implementation and the original white papers on all aspects of data networking technology.

Other highly useful resource sites are as follows:

- Microsoft website: http://www.microsoft.com
- Apple website: http://www.apple.com
- Sun website: http://www.sun.com
- Linux website: http://www.linux.org
- Protocols in general: http://www.protocols.com

Vendor websites also contain a wealth of information and support resources.

Some computer vendors:

- http://www.dell.com
- http://www.gateway.com
- http://www.ibm.com
- http://www.toshiba.com