Displaying PoE Configuration 723n ■ The Switch 7750 do not support the spare mode.■ When a module is almost fully loaded and a new PD is added, the switch willrespond to the PD according to the PoE management mode. For details, see“Setting PoE Management Mode” on page 720.■ In auto mode, when the switch is reaching its full load in supplying power, theswitch decides whether to supply power to remote PDs on a port based on theport priority. Note that the switch can compare only the priority of ports on thesame module.Upgrading the PSEProcessing SoftwareOnlineThe online upgrading of PSE processing software can update the processingsoftware or repair the software if it is damaged. After downloading the PSEprocessing software to the Flash of the switch, you can perform the followingconfiguration. Refer to “File System Management” on page 791 for how todownload the PSE processing software.n ■ The refresh update mode is to upgrade the valid software in the PSE throughrefreshing the software, while the full update mode is to delete the invalidsoftware in PSE completely and then reload the software.■ Generally, the refresh update mode is used to upgrade the PSE processingsoftware.■ When the PSE processing software is damaged (that is, all the PoE commandscannot be successfully executed), you can use the full update mode toupgrade and restore the software.■ When the upgrading procedure in refresh update mode is interrupted forsome unexpected reason (such as power-off) or some errors occur, if theupgrade in full mode fails after restart, you must upgrade in full mode afterpower-off and restart of the device. In this way, the upgrade proceduresucceeds.Displaying PoEConfigurationAfter the above configuration, execute the display command in any view to seethe operation of the PoE feature and verify the configuration.Table 583 Upgrade PSE processing software onlineOperation Command DescriptionEnter system view system-view -Upgrade the PSE processingsoftware onlinepoe upgrade { refresh |full } filename slotslot-numberRequired
