© Copyright Lenovo 2016 Chapter 3: Switch Software Management 85Updating Software on vLAG SwitchesFollowing are the steps for updating the software and boot images for switchesconfigured with vLAG:1. Save the configuration on both switches using the following command:2. Use FTP, STFP, or TFTP to copy the new ENOS and boot images onto both vLAGswitches. For more details, see “Loading New Software to Your Switch” onpage 82.3. Shutdown all ports except the ISL ports and the health check port on the primaryvLAG switch (Switch 1).Note: Do not save this configuration.4. Reload Switch 1. The secondary vLAG switch (Switch 2) will assume the vLAGprimary role. Once Switch 1 has rebooted, Switch 1 will become the new vLAGsecondary vLAG switch.5. Shutdown all ports except the ISL ports and the health check port on Switch 2.Note: Do not save this configuration.6. Reload Switch 2. Switch 1 will assume the vLAG primary role. Once Switch 2 hasrebooted, it will assume its initial role as the secondary vLAG switch.Note: Make sure that Switch 1 is now the vLAG primary switch and Switch 2 isnow the vLAG secondary switch.7. Verify that all the vLAG clients have converged using the following command:USB OptionsYou can insert a USB drive into the USB port on the G8264 and use it to work withswitch image and configuration files. You can boot the switch using files located onthe USB drive, or copy files to and from the USB drive.Note: USB options are not available in stacking mode.To safely remove the USB drive, first use the following command to un‐mount theUSB file system:system usb ejectCommand mode: Global configurationUSB BootUSB Boot allows you to boot the switch with a software image file, boot file, orconfiguration file that resides on a USB drive inserted into the USB port. Use thefollowing command to enable or disable USB Boot:[no] boot usbboot enableRS G8264# copy running config startup configRS G8264> show vlag information
