SG300-52P PoE / Time Range

[Philip McNamara]

We have recently bought a SG300-52P switch which is going to be used in an isolated enviroment without any connection to an external Time Server. The clock in the switch can be set manually and will run as long as the unit hasn't rebooted. After a reboot the time needs to be set again via console or GUI.

This creates a bit of a problem because I need to set up an "infinite" time range in order that the PoE configuration works:

If the system time is not running, the infinite time range doesn't work and hence the PoE cannot be activated.

I am trying to provide PoE continuously on 5 Ports. Can I do this without setting up an "infinite" time range? Thanks

[Diana Karolina Rojas · Accepted solution]

Isn't there anything on your network that can function as an NTP server? Can not you set one up? In any case if you always need POE availability having this problem you do not need to establish a schedule, read the following information from Cisco:

Use the power inline Interface Configuration mode command to configure the power on an interface.

Syntax power inline {auto | never} [time-range time-range-name]

Parameters • auto—Turns on the device discovery protocol and applies power to the device.

• never—Turns off the device discovery protocol and stops applying power to the device.

• auto time-range-name—Turns on the power in the specified time range. When the time range is not in effect the power is not supplied to the attached device. If a time range is not specified, there is no time range bound to the port.

• never time-range-name—Turns off the power to the device in the specified time range. When the time range is not in effect the power is supplied to the attached device. If a time range is not specified, there is no time range bound to the port.

---Do not forget reta useful post---

Regards,

[Philip McNamara]

Many thanks :-)

[Diana Karolina Rojas]

Your welcome! Have a good day! :)