思科2960交换机开机一会就有 如下提示， 不知道是什么问题，大家帮我看一下如何解决，谢谢！！

The software has detected that this switch may not be a genuine Cisco product a
nd that software loaded on the switch may have been copied in violation of Cisco
's end user license agreement. Cisco licensing, warranties and support programs
only apply to genuine Cisco products. Cisco may deny operation of this product,
or support under your warranty or under a Cisco support program such as SmartNet
. If you receive this message, please contact your Cisco Sales Representative fo
r assistance.