Clarification on last-reboot-time, boot-time and up-time

[AnandJyrm]

• last-reboot-time:

This reports the time of the last reboot of the component

Does this indicate the time at which the reboot was initiated by the user/ the component going down? or does it indicate the time at which the component came back up to oper-status ACTIVE?

• boot-time:

This timestamp indicates the time that the system was last restarted.

• up-time:

The amount of time since the network operating system was initialized

What is the difference between restarted and rebooted in this context? Linux boot-time usually refers to /proc/stat btime. Is that a valid for the boot-time leaf? For platforms with multiple components like Line Cards and Fabric Cards, (with and without CPU), there can be different boot-time/up-time per component. Would it be possible to have enhance ocplatform to contain a component-boot-time/component-up-time for individual components?

[dplore]

IMO, /components/component/state/last-reboot-time should represent the time which a component has booted up. I will propose this clarification to the yang description for review.