3Com Switch 8800 Configuration Guide Chapter 45 Device management45-345.2.4 Upgrading BootROMYou can use followed command to upgrade the BootROM with the BootROM programin the Flash Memory. This configuration task facilitates the remote upgrade. You canupload the BootROM program file from a remote end to the switch by FTP and then usethis command to upgrade the BootROM.Perform the following configuration in user view.Table 45-4 Upgrade BootROMOperation CommandUpgrade BootROM boot bootrom file-url slot slot-num-listNote:The Switch 8800 supports master board and slave board. The two boards both havefile system. User can operate the file on the two boards. In the case user upgrade theBootROM adopted on slave board, the file directory or URL should be started with“slot[No.]#flash:”, the [No.] is the slave board number. For example, suppose slot 1 isslave board, “text.txt” file URL on slave board should be “slot1#flash:/text.txt”.When you are upgrading the BootROM on a slave board, the boot code file must bepresent in the local flash.45.2.5 Setting Slot Temperature LimitThe switch system alarms when the temperature on a slot exceeds the preset limit.Perform the following configuration in user view.Table 45-5 Set slot temperature limitOperation CommandSet slot temperature limit temperature-limit slot down-value up-valueRestore temperature limit todefault value undo temperature-limit slot45.2.6 Updating Service Processing BoardsThe size of the flash for a main control board in a Switch 8800 is 16 MB, while the sizeof current host software including the host application of service processing boardreaches over 15MB. If a compact flash (CF) card is not configured, the current flashcannot provide enough room to save loading files. Therefore for a Switch 8800 with the