下面的链接可能帮助到您 Q. If a customer wants to use a redundant supervisor in the same chassis, does the customer have to buy another software package for the second supervisor engine? A. No, since it is a redundant card and only one is online at a time, a single software package will be required for this system. Q. Will a software package be required if customer decides to move a redundant supervisor engine to another system? A. Yes. If a redundant supervisor engine is moved to another system, the customer will need to have at least one license for each system. Q. What happens when customer replaces a damaged chassis? Does the customer need to purchase another package? A. Since the software package is tied to the supervisor engine, the customer will not need to purchase another package. The coverage will automatically be ported over to the supervisor engine on the new chassis. http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-software-releases-12-2-sx/qa_c67-661785.pdf
