: Refers to the specific software version— Cisco IOS Release 15.7(3)M3 . Key Features and Capabilities
: Indicates this is a Virtual IOS (vIOS) image with the Advanced Enterprise Services feature set, which includes full routing, switching, and security capabilities. Vios-adventerprisek9-m.vmdk.spa.157-3.m3
: To run effectively, the appliance typically requires at least 512 MB of RAM and an x86_64 architecture with KVM acceleration enabled. : Refers to the specific software version— Cisco
: The file format, specifically a Virtual Machine Disk file used by VMware products, though it can be converted to .qcow2 for use in KVM-based simulators. which includes full routing
enable configure terminal hostname R1 interface gigabitethernet0/0 ip address dhcp no shutdown exit line vty 0 4 password cisco login transport input telnet ssh end