c3560-ipservicesk9-mz.150-2.SE11.bin is a specific Cisco IOS Software image designed for the Cisco Catalyst 3560 Series
Ensure the switch has at least 128MB of DRAM. Running IP Services with complex routing tables on 64MB of RAM can lead to crashes or "low memory" warnings. How to Install The standard method involves using a TFTP or FTP server: c3560ipservicesk9mz1502se11bin top