It is important to note that Cisco IOS software is copyrighted. You cannot legally download these files from third-party "warez" sites. To obtain the legitimate c3560-ipservicesk9-mz.150-2.SE11.bin file:
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The C3560IPServicesK9MZ1502SE11BIN is compatible with the following Cisco Catalyst 3560 series switches: c3560ipservicesk9mz1502se11bin download top