z When the internal temperature of the switch decreases from X (X>65°C, or X>149°F) to Y(60°C≤Y<65°C, or 140°F≤Y<149°F), the switch still keeps the PoE function disabled on all theports.z When the internal temperature of the switch increases from X (X<60°C, or X<140°F) to Y(60°C≤65°C, or 140°F≤149°F), the switch still keeps the PoE function enabled on all theports.Upgrading the PSE Processing Software OnlineThe online upgrading of PSE processing software can update the processing software or repair thesoftware if it is damaged. Before performing the following configuration, download the PSE processingsoftware to the Flash of the switch.Follow these steps to upgrade PSE processing software online:To do… Use the command… RemarksEnter system view system-view —Upgrade the PSEprocessing softwareonlinepoe update { refresh | full }filenameRequiredThe specified PSE processingsoftware is a file with theextension .s19.z In the case that the PSE processing software is damaged (that is, no PoE command can beexecuted successfully), use the full update mode to upgrade and thus restore the software.z The refresh update mode is to upgrade the original processing software in the PSE throughrefreshing the software, while the full update mode is to delete the original processing software inPSE completely and then reload the software.z Generally, the refresh update mode is used to upgrade the PSE processing software.z When the online upgrading procedure is interrupted for some unexpected reason (for example, thedevice restarts due to some errors), if the upgrade in full mode fails after restart, you must upgradein full mode after power-off and restart of the device, and then restart the device manually. In thisway, the former PoE configuration is restored.Upgrading the PSE Processing Software of Fabric Switches OnlineYou can update or repair the damaged PSE processing software through upgrading it.By executing the following command on any device in the fabric, you can upgrade the PSE processingsoftware of all devices in the fabric by using the specified PSE processing software. For details of fabric,see the XRN Fabric part of this manual.49-6
