Agent Auto Unit Replacement - Nortel 4500 Series Overview-System Configuration

130 About the Nortel Ethernet Routing Switch 4500 Series

Agent Auto Unit Replacement

Use the enhancement to the Auto Unit Replacement functionality, known
as Agent Auto Unit Replacement (AAUR), to ensure that all units in a stack
have the same software image by inspecting units joining a stack and
downloading the stack software image to any unit that has a dissimilar
image. AAUR is enabled by default.
Agent Auto Unit Replacement functions in the following manner:
1. When a stand-alone switch joins an AAUR-enabled stack, the switch
2. If the switch software image differs from the stack software image, the
3. The joining unit is then reset and becomes a member of the stack upon
Use the CLI commands in the following sections to manage and configure
AAUR. You can currently manage this functionality only through the CLI.
stack auto-unit-replacement-image enable command
Use the stack auto-unit-replacement-image enable command
to enable AAUR. Because AAUR is enabled by default, use this command
only if this functionality was previously disabled.
The syntax for this command is
stack auto-unit-replacement-image enable
Run the stack auto-unit-replacement-image enable command in
Global Configuration command mode.
no stack auto-unit-replacement-image-enable command
Use the no stack auto-unit-replacement-image enable
command to disable AAUR. Because AAUR is enabled by default, you must
run this command if you do not want AAUR functionality on a switch.
The syntax for this command is
no stack auto-unit-replacement-image enable
The no stack auto-unit-replacement-image enable command is
executed in the Global Configuration command mode.
default stack auto-unit-replacement-image enable command
Use the default stack auto-unit-replacement-image enable
command to set the AAUR functionality to the factory default of enabled.
Copyright © 2007, Nortel Networks
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software image is inspected.
AAUR functionality downloads the stack software image to the joining
unit.
a reboot.
Nortel Ethernet Routing Switch 4500 Series
Overview — System Configuration
NN47205-500 02.01 Standard
5.0 23 February 2007
Nortel Networks Confidential