Cisco 2950 Software Configuration Guide - Page 290
Configuring for an LRE Upgrade, Performing an LRE Upgrade
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Upgrading LRE Switch Firmware Chapter 13 Configuring LRE Note Whether upgrading a single CPE device or all CPE devices connected to an LRE switch, the expected duration of an LRE upgrade is 3 to 6 minutes. (CPE devices connected to marginal links might take longer than this to upgrade.) You perform an upgrade by using the hw-module slot module-slot-number upgrade lre [force] [local ctrlr-unit-number | remote interface-id] privileged EXEC command. Automatic upgrading is not supported. You can upgrade in one of these ways: • Upgrade a single remote CPE device. • Upgrade a single local LRE controller (local LRE chipset). • Upgrade all CPE devices and local chipsets that require an upgrade (a system-wide upgrade, which is the default). Configuring for an LRE Upgrade In the absence of any LRE upgrade configurations, the LRE upgrade attempts to upgrade all local LRE controllers and CPE devices to the most recent compatible versions of the LRE binaries required for each LRE target device. LRE upgrade configurations should rarely be required. The primary purpose of LRE upgrade configuration commands is to provide for downgrades of LRE binaries. If you wish to override the automatic switch selection of LRE binaries, these methods are available: • Global LRE upgrade configuration commands • LRE controller configuration commands You can 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 entering the upgrade binary and the upgrade preserve controller configuration commands. Note You must remove global configurations that might affect the controller and devices connected to it. Note If you enter the lre upgrade default family global configuration command and the upgrade binary LRE binary [remote interface-id] controller configuration command, the upgrade binary controller configuration command has precedence. 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. 13-24 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
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