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Catalyst2950 and Catalyst2955 Switch Software Configuration Guide
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Chapter13 Configuring LRE Upgrading LRE Switch Firmware
When executing upgrades, you can elect to upgrade a single CPE device or lo cal controller by using the
hw-module slot module-slot-number upgrade lre [force] [local ctrlr-unit-number | remote
interface-id] privileged EXEC command. If no local or remote option is given, a system-wide upgrade
is performed.
Global Configuration of LRE Upgrades
Beginning in privileged EXEC mode, follow these steps to perform a system-wide upgrade to configure
the LRE binary to apply to a target device and upgradable hardware element combination:
Note The lre upgrade default family global configuration command essentially overrides the system default
selection of an LRE binary for a specified family of CPE devices (target devices).
Controller Configuration of LRE Upgrades
Beginning in privileged EXEC mode, follow these steps to explicitly direct the LRE binaries to be
applied to either the local controller or a specific very-high-data-rate digital subscriber line (VDSL) link :
You can use the upgrade controller configuration command to override the system default selection of
an LRE binary that will be applied on either end of a particular LRE link. Con troller 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 lin ks you want t o
upgrade.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 lre binary default target_device LRE_binary Enter the device to which the LRE binary should be applied and
the LRE binary to be applied.
Step3 end Return to privileged EXEC mode.
Step4 show lre upgrade version Verify the change.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 controller lre chipset_number Enter the particular LRE local chipset on the switch to be applied.
Step3 upgrade {LRE binary [remote lre-interface] |
preserve}Enter the LRE binary to be applied, or set preserve, which
prevents the upgrade of any CPE devices connected to a controller
or local chipset.
Step4 end Return to privileged EXEC mode.
Step5 show lre upgrade version Verify the change.