User guide

Getting Started and Upgrading AOS Upgrading the Software
OmniSwitch AOS Release 7 Switch Management Guide March 2015 page 1-7
Prerequisites
Before upgrading, the individual performing the upgrade must:
• Read the release notes for the appropriate AOS release.
• Be the responsible party for maintaining the switch's configuration
• Be aware of any issues that may arise from a network outage caused by improperly loading this code
• Understand that the switch must be rebooted and network access may be affected by following this
procedure.
• Have a working knowledge of the switch to configure it to accept an FTP connection through the EMP
or Network Interface (NI) Ethernet port
• Read the GA Release Notes prior to performing any upgrade for information specific to this release.
• Ensure there is a current certified configuration on the switch so that the upgrade can be rolled-back if
required.
• Verify the current versions of Uboot and FPGA. If they meet the minimum requirements, (i.e. they
were already upgraded during a previous AOS upgrade) then only an upgrade of the AOS images is
required.
• Depending on whether a standalone chassis or VC is being upgraded, upgrading can take from 5 to 20
minutes. Additional time will be needed for the network to re-converge.
• The examples below use various models and directories to demonstrate the upgrade procedure.
However any user-defined directory can be used for the upgrade.
• If possible, have EMP or serial console access to all chassis during the upgrade. This will allow moni-
toring of the VC during the ISSU process and before the virtual chassis has been re-established.
Knowledge of various aspects of AOS directory structure, operation and CLI commands can be found in
the Alcatel-Lucent OmniSwitch User Guides. Recommended reading from the Switch Management Guide
includes the following chapters:
• Chapter 1, “Getting Started and Upgrading AOS”
• Chapter 2, “Logging Into the Switch”
• Chapter 3, “Managing System Files”
• Chapter 4, “Managing CMM Directory Content”
• Chapter 5, “Using the CLI”
• Chapter 6, “Working With Configuration Files”
• Chapter 12, “Configuring Virtual Chassis”
• Release Notes - for the version of software you're planning to upgrade to.