As already mentioned in section 2.2, board alarms are mapped to their contained modules. The presence of a backup SCP in this switch type can also be determined through autodiscovery. A redundant PS module belongs to the standard configuration. Besides, this is the only model equipped with two fan banks.
| ASX-4000 | HP OV |
|---|---|
| Everything up | Normal |
| SCP module down | Major for dual SCP configurationCritical for single SCP |
| Power supply module down | Major |
| Fan bank module down | Major |
| Any physical module down | Major |
| Any physical port down | Minor |
| Any ATM PVC down | Warning |