While there are such things that will delay after a power outage this issue sounds like something else is broken or badly configured.
Here's a power on delay box.
Notice "Extended Cold Start" at http://www.bomara.com/cps/ipc.htm
This is just one of dozens of such boxes.
We have a 'extreme 450e 48p' switch installed in our organization along with other networking equipments. When power is restrored 'extreme 450e 48p' switch reboot successfully before other networking equipment thereby create some problems, which we don't know why.
So, for a solution we restart this particular switch again by turning power off and then on for this particular switch after successful restart of all other networking equipments.
As per my understanding 5 minute delay to start booting of 'extreme 450e 48p' switch can resolve the issue, if it's so, please let me know how to create a delay or auto reboot once again this switch.
Any other solutions are most welcome.