Cisco 2950G 24 Software Configuration Guide - Page 264

Upgrading LRE Switch Firmware Chapter 10 Configuring LRE If you wish to override the switch's automatic selection of LRE binaries, you have these methods available: • Global LRE Upgrade Configuration Commands • LRE Controller configuration commands You can use config global commands to specify the LRE binary or binaries for a specified target type. (A target type is the family [and optionally the model or model revision] of a device containing one or more upgradable hardware elements.) A target can be a local LRE controller on the switch or a remote CPE device. You can perform global LRE upgrade configurations by issuing LRE upgrade controller configuration commands from the controller configuration submode. You can use the upgrade configuration command in the controller submode to override the system default selection of an LRE binary to be applied on a particular remote CPE device or local LRE controller. Controller configurations take precedence over global upgrade configurations. The preserve keyword causes the LRE upgrade mechanism to not upgrade the local controller on which preserve is configured or any of the CPE devices connected to that controller. If you want to preserve (in other words, not upgrade) some of the CPE devices connected to a particular controller but allow upgrades to others, you can enter controller upgrade configuration commands for the links that you want to upgrade. The no form of the upgrade command removes the command for applying a particular LRE binary. To resume default upgrade behavior for a given controller, configure the no upgrade commands on that controller Note You also need to remove global configurations that might also affect the controller and devices connected to it. Note When a config global command and a config controller command conflict, the config controller command has precedence. Refer to the reference pages for the upgrade commands in the Catalyst 2950 Desktop Switch Command Reference for further details. Performing an LRE Upgrade You can upgrade either on a system-wide basis (in other words, upgrading the software on all connected CPE devices and local LRE chipsets) or on individual CPE device or LRE controllers. By default, a system-wide upgrade applies the most recent versions of LRE binaries that are most compatible with each upgradable hardware module. The system-wide upgrade method is the one that you use in almost all situations. When executing upgrades, you can elect to upgrade a single CPE device or local controller by using this command hw-module slot upgrade lre [local lo n | remote lo x/y]. If no local or remote option is given, a system-wide upgrade is performed. 10-16 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01