OmniSwitch AOS Release Notes

September 2015

Appendix B: AOS 6.7.1.R01 Downgrade Instructions

OmniSwitch Downgrade Overview

This section documents the downgrade requirements for OmniSwitch 6250 and OmniSwitch 6450 Models. These instructions apply to the following:

•

•

OmniSwitch 6250 models being downgraded from AOS 6.7.1.R01.

OmniSwitch 6450 models being downgraded from AOS 6.7.1.R01.

Note: The OmniSwitch 6350 requires a minimum of AOS Release 6.7.1.R01 and cannot be downgraded.

Prerequisites

This instruction sheet requires that the following conditions are understood and performed, BEFORE downgrading:

•

•

Read and understand the entire downgrade procedure before performing any steps.

The person performing the downgrade must:

•

•







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 users will be affected by this procedure.

 Have a working knowledge of the switch to configure it to accept an FTP connection through the

Network Interface (NI) Ethernet port.

Read the 6.7.1.R01 Release Notes prior to performing any downgrade for information specific to this release.

All FTP transfers MUST be done in binary mode.

WARNING: Do not proceed until all the above prerequisites have been met and understood. Any deviation from these procedures could result in the malfunctioning of the switch. All steps in these procedures should be reviewed before beginning.

OmniSwitch Downgrade Requirements

Downgrading the Uboot/Miniboot or CPLD is not required when downgrading AOS from 6.7.1.R01. Previous AOS releases are compatible with the Uboot/Miniboot and CPLD versions shipping from the factory.

Summary of Downgrade Steps

1. FTP all the required AOS files to the switch

2. Downgrade the AOS images as required. (A reboot is required).

3. Verify the downgrade.

Page 23 of 24 OmniSwitch 6250/6350/6450 —Release 6.7.1.R01