196issu pexUse issu pex to specify images used for PEX upgrade.Syntaxissu pex pex-model file { boot filename | system filename | feature filename&<1-30> } *issu pex pex-model file ipe ipe-filenameViewsUser viewPredefined user rolesnetwork-adminParameterspex-model: Specifies the PEX model, a case-insensitive string. You must enter the complete PEXmodel name for the device to identify the PEX correctly. For available PEX models, enterboot-loader pex ?.boot: Specifies a boot image file.system: Specifies a system image file.feature: Specifies a space-separated list of up to 30 feature image files.filename: Specifies the name of a .bin file in the root directory of a storage medium, in the[slotn#]storage-medium:/base-filename.bin format. The slotn# section is optional if the file is on themaster. The storage-medium:/base-filename.ipe section can have a maximum of 63 characters.ipe ipe-filename: Specifies the name of an .ipe file in the root directory of a storage medium, in the[slotn#]storage-medium:/base-filename.ipe format. The slotn# section is optional if the file is on themaster. The storage-medium:/base-filename.ipe section can have a maximum of 63 characters.Usage guidelinesUse this command if you want to upgrade PEXs during an ISSU that uses issu commands.This command only specifies images used for PEX upgrade. This command does not load theupgrade images. The PEXs will load the upgrade images when the parent devices are upgraded. Formore information, see Fundamentals Configuration Guide.You may upgrade all or some of the software images. If you are upgrading only some of the images,make sure the new images are compatible with the images that are not to be upgraded. The upgradewill fail if a conflict exists.If the PEXs have a storage medium, the system performs the following operations after verifyingvalidity of the source file:1. If you specify an .ipe file, the system automatically decompresses the .bin image files fromthe .ipe file to the same directory as the .ipe file.2. Copies the .bin files to all PEXs of the specified model.3. Displays a prompt for you to delete the following files:{ Source .ipe file (if any).{ Source .bin files if the .bin files are not on a PEX of the specified model.If the PEXs do not have a storage medium, the system performs the following operations afterverifying validity of the source file:4. If you specify an .ipe file, the system automatically decompresses the .bin image files fromthe .ipe file to the same directory as the .ipe file.5. Copies the .bin files to all other parent devices.