i86bi_LinuxL3-AdvEnterpriseK9-M2_157_3_May_2018.bin is a Cisco IOS on Linux (IOL) image, also commonly referred to as IOS on Unix (IOU)
The binary file is a Cisco IOL (IOS on Linux) image used primarily for high-performance network simulation. Also referred to as IOU (IOS on Unix) , this specific image is a Layer 3 (L3) router build running Cisco IOS Software version 15.7(3)M2 . Overview of i86bi LinuxL3-AdvEnterpriseK9-M2 i86bi linuxl3-adventerprisek9-m2 157 3 may 2018.bin
package provides the most comprehensive set of Cisco IOS features, combining several major capability sets: Core Feature Capabilities Routing Protocols: Full support for BGP, OSPF, EIGRP, RIP, and IS-IS. MPLS Support: i86bi_LinuxL3-AdvEnterpriseK9-M2_157_3_May_2018