Cisco Cisco IOS Software Release 12.2(11)YU 發佈版本通知

The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority 
level 2; these classifications are assigned when severe network degradation significantly impacts 
business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC 
engineer will automatically open a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following 
URL:

Before calling, please check with your network operations

 

center to determine the level of Cisco support 

services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network 
Supported Accounts (NSA). In addition, please have available your service agreement number and your 
product serial number.

This document is to be used in conjunction with the documents listed in the 

 section.

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