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The hitless OS software process
Follow the steps given below to perform hitless upgrade of Multi-Service IronWare software.
1. Version 02.3.00 or later of the Multi-Service IronWare software is installed in flash memory to
2. The hitless-reload command is executed on the active management module.
3. The hitless upgrade process is begun on the active management module which initiates the
4. The standby management module is reset.
5. The active management module is reset and the standby management module assumes
6. Active console control is lost to the previously active management module as it becomes the
7.
8. The router is now operating on the new Multi-Service IronWare software. The management
BigIron RX Installation Guide
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Hitless upgrade is only supported from version 2600c or later 2600x patch releases and
hitless downgrade to version 2600c or later 2600x patch releases.
Due to Internal changes introduced in patch release version 02.6.00c, hitless upgrade is not
supported on 02.6.00c and hitless downgrade is not supported from 02.6.00c.
Due to Internal changes introduced in patch release version 02.3.00e, users cannot perform a
hitless upgrade from earlier 02.3.00 versions to 2.3.00f or higher versions.
Due to Internal changes introduced in patch release version 02.3.00f, users cannot perform a
hitless upgrade from earlier 02.3.00 versions to 02.3.00g or higher versions.
The hitless upgrade feature is not supported on release 02.5.00b to 02.5.00c for the BigIron
RX-32 only. It is supported on all other BigIron RX devices.
the primary and secondary image on the active and standby management modules and
interface modules.
upgrade process on the standby management module.
control as the active module.
standby management module.
The active management module initiates the upgrade process on all interface modules.
module that was initially configured as the standby management module is now the active
management module and the management module that was initially configured as the active
management module is now the standby.
Upgrading the BigIron RX Series software
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