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POE startup delay

bjbaird
Community Member

I have a SG30010-MPP

Is there a way to delay applying POE to a port until after the switch is fully booted?

I have a situation where I am using the switch with DCHP capabilities, but I need the switch and DHCP server to be fully booted before power is applied to the port.  Since power is applied before the switch is fully booted, my devices configure with auto-IP and never see the DHCP server.  is there a way to control the boot sequence to make sure the DCHP server if fully functional before power gets applied to the ports?

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dave.joyce
Community Member

I'm having the same type of issue but since we use 2 vlans (one for voip and another for data) on a switch reboot, it seems that the phones pickup an IP from the default vlan of the data DHCP instead of the higher vlan id for the voice.

I suspect this is the same type of issue you are probably still dealing with, since a POE reboot (disable-enable) always brings the phones back to the correct voice vlan.

Did you resolve the issue with the Cisco SG models or find another POE switch that does a better job on reboot?

Wish I knew this issue before deployment!!!!