User guide

Virtual Chassis - ISSU Configuring Virtual Chassis
page 13-16 OmniSwitch AOS Release 8 Switch Management Guide May 2014
2 Create the flash/issu_dir directory and copy the image files, the issu_version file, the vcsetup.cfg, and
vcboot.cfg files to the /flash/issu_dir directory.
3 Enter ‘issu from issu_dir’ to begin the ISSU upgrade.
4 The Master copies the /flash/issu_dir directory to the Slave chassis, the Slave is reloaded with the
upgraded code and rejoins the Virtual Chassis.
5 The Master chassis is now reloaded with the upgraded code which causes the Slave chassis to become
the new Master chassis.
As a result of this process all chassis are now running with the upgraded code and the Master and Slave
chassis will have changed roles.
6 Enter ‘copy running certified flash-synchro’ to certify the configuration.
7 Enter ‘reload chassis-id 2’ to have the original Master resume its Master role.