Catalyst 4500-X Fixed 10 GE Aggregation Switch
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• The 4-command syntax is as follows (from the priv # prompt)<br />
• issu loadversion bootflash:new_image <br />
slavebootflash:new_image<br />
• This command will reboot the standby and install the new image on the standby sup.<br />
• issu runversion slavebootflash:new_image<br />
• A switchover happens at this point. The new Active is now on the new image. The former.<br />
Active is now standby – has not rebooted, and is still running the old code in hot-standby.<br />
• issu accept version bootflash:new_image<br />
• (optional) Use this issu command if you want to stop the rollback timer (default is 45<br />
minutes) which is used as a safety feature to revert back to the original version if the issu<br />
process kills communication between the 2 sups.<br />
• issu commitversion slavebootflash:new_image<br />
• reboots the new standby Sup and loads the new slavebootflash image.<br />
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