Using a Redundant Management Module
December 2008
© 2008 Foundry Networks, Inc.
6 - 11
•
The Layer 3 hitless upgrade feature is not supported in this release.
Configuration Steps
The following is a summary of the configuration steps for a Layer 2 hitless OS software upgrade:
1.
The software image that supports Layer 2 hitless software upgrade is copied from a TFTP server to the
FastIron switch. See “Loading the Software onto the Switch” .
2.
The software image is installed in flash memory on the active and standby management modules.
3.
The
hitless-reload
command is entered on the active management module. The command triggers the
events described in the section “What Happens During a Hitless OS Upgrade and Hitless Switchover” on
page 6-6.
Loading the Software onto the Switch
Hitless OS upgrade loads from the primary and secondary images on the Management modules. To perform the
hitless upgrade, you must first copy the software image that supports Layer 2 hitless software upgrade onto the
flash memory of the active and standby management modules.
For instructions for copying these files, see the release notes or the
Foundry FastIron Configuration Guide
.
Executing the Hitless-Reload Command
After loading the software image onto the flash memory of the active and standby management modules, you can
begin the process of performing a hitless OS upgrade using the
hitless-reload
command. For example:
FastIron#hitless-reload primary
Syntax:
hitless-reload primary | secondary
The
primary
parameter specifies that the management module will be reloaded with the
primary
image.
The
secondary
parameter specifies that the management module will be reloaded with the
secondary
image.
Verifying the New Software Image
Enter the
show version
command at any CLI level to verify that all management and interface modules are
running the new software image version.
Monitoring Management Module Redundancy
You can monitor the following aspects of management module redundancy:
•
The status of the management modules (if a module is the active or standby module)
•
The switchover history for the management modules
The following sections explain how you can monitor the management modules
Determining Management Module Status
You can determine the status of a management module in the following ways:
•
LEDs – The LEDs on the management module indicate whether a module is the active module or the standby
module, and if the module has power.
•
Redundant management and module information in software – The module information displayed by the
software indicates whether a module is the active module or the standby module.
Status LED
If you are located near the chassis, you can determine which management module is currently the active module
and which is the standby module by observing the Active LED on each module. If this LED is on (green), the
module is the active module. If this LED is off, the module is the standby module.
