Core Isolation feature shuts down ESI interface(s) when all the core interfaces between the Leaf and Spine nodes go down. This feature is enabled by default. Use this command to disable this feature. When disabled, the ESI interface will not be brought down when all the core interfaces between the Leaf and Spine go down.
Core Isolation is enabled by default. It has to be explicitly disabled using this command.
Global configuration mode
The following example shows the disabling of the core-isolation feature
SLX # configure terminal
SLX (config)# core-isolation-disable