Pre-ISSU Compatibility Checks for an SPX System
After you enter the
issu command but before an ISSU is performed in an SPX system, a set of checks similar
to the set of compatibility checks performed for a stack is executed to determine
whether the SPX system is ready for an upgrade.
.
Note: In contrast to the standard stacking checklist, zero-touch provisioning (ZTP) cannot
be in progress when an SPX ISSU is initiated.
A successful compatibility check for an SPX system displays the passing results shown
in the following table. Any differences between an SPX system and a stacking system
are noted.
Pre-ISSU Checks for an SPX System
| Check | Passing Result |
|---|---|
| Stacking Topology is Ring | Yes |
| Standby Present | Yes |
| Standby ready for upgrade | Yes |
| Flash use in progress | No |
| Stack interactive-setup in progress | No |
| Stack ZTP is configured | No |
| SPX interactive-setup in progress | No (unique to SPX ISSU) |
| ZTP is configured | No (unique to SPX ISSU) |
| ISSU in progress or aborted | No |
| Election pending | No |
| Election in progress | No |
| Reload pending | No |
| CPU utilization high | No |
| All units in ready state | Yes |
| Primary Image is upgrade compatible | Yes |
| Secondary Image is upgrade compatible | Yes |
| Startup config and Running Config Same | Yes |
| Boot option present in running config | No |
| User in Config mode | No |
| POE-Firmware Download is in Progress | No |
| System ready for issu | If this flag is present, you can proceed with ISSU. Otherwise, check the conditions flagged by three asterisks (***) and make prescribed corrections to the device before performing an ISSU. |
| ISSU not in progress |