ISSU commands
ISSU provides the install and issu command sets. After you identify the ISSU method, use Table 13 to choose the command set you want to use.
Table 13: Command set comparison
Item | issu commands | install commands |
---|---|---|
Upgrade types |
| Compatible. |
Patch install/uninstall | Not supported. | Supported. |
Upgrade mode | Chassis by chassis. | Chassis by chassis. |
Impact on the system | Large. | Small. |
Technical skill requirements | Low. As a best practice, use this command set. | High. Administrators must have extensive system knowledge and understand the impact of each upgrade task on the network. |