Cisco Systems 3550 Manual De Usuario

The online TAC Case Open Tool (

) is the fastest way to open P3 and 

P4 cases. (Your network is minimally impaired or you require product information). After you describe 
your situation, the TAC Case Open Tool automatically recommends resources for an immediate solution. 
If your issue is not resolved using these recommendations, your case will be assigned to a Cisco TAC 
engineer.

For P1 or P2 cases (your production network is down or severely degraded) or if you do not have Internet 
access, contact Cisco TAC by telephone. Cisco TAC engineers are assigned immediately to P1 and P2 
cases to help keep your business operations running smoothly.

To open a case by telephone, use one of the following numbers:

Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227) 
EMEA: +32 2 704 55 55 
USA: 1 800 553-2447 

For a complete listing of Cisco TAC contacts, go to this URL:

To ensure that all cases are reported in a standard format, Cisco has established case priority definitions.

Priority 1 (P1)—Your network is “down” or there is a critical impact to your business operations. You 
and Cisco will commit all necessary resources around the clock to resolve the situation. 

Priority 2 (P2)—Operation of an existing network is severely degraded, or significant aspects of your 
business operation are negatively affected by inadequate performance of Cisco products. You and Cisco 
will commit full-time resources during normal business hours to resolve the situation.

Priority 3 (P3)—Operational performance of your network is impaired, but most business operations 
remain functional. You and Cisco will commit resources during normal business hours to restore service 
to satisfactory levels.

Priority 4 (P4)—You require information or assistance with Cisco product capabilities, installation, or 
configuration. There is little or no effect on your business operations.

Information about Cisco products, technologies, and network solutions is available from various online 
and printed sources.

The Cisco Product Catalog describes the networking products offered by Cisco Systems, as well as 
ordering and customer support services. Access the Cisco Product Catalog at this URL:

Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new 
and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking 
Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design 
Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL: