c3560: Refers to the model of the switch, in this case, a Cisco 3560 series switch.ipservices: Indicates the feature set of the IOS. "IP Services" typically suggests that this image supports a broad range of IP features but might not include all the advanced features like those found in the "Advanced IP Services" or specific technology-focused feature sets.k9: Indicates that the image is for a switch with a specific hardware configuration, often related to the type of cryptographic support. The "k9" denotes that it supports 2048-bit (or larger) RSA keys, which is a common and more secure key size for cryptographic operations.mz: Represents the packaging and general capabilities of the IOS. "MZ" typically indicates a standard IOS image.1502: Could refer to specific build or version details, potentially relating to the release 15.0(2) of the IOS.se11: Suggests a specific software release within the 15.0 series, potentially a patch or a set of features/bug fixes included in that release.bin: The file extension indicating it's a binary executable file.configure terminal
no boot system
boot system flash:c3560-ipservicesk9-mz.150-2.SE11.bin
end
delete flash:c3560-xxx-old-image.bin
This guide covers upgrading a Cisco Catalyst 3560 switch to the c3560-ipservicesk9-mz.150-2.SE11.bin IOS image using a TFTP server. 1. Preparation