For supported firewalls configured in a chassis cluster, you can install additional services processing cards (SPCs) without incurring downtime on network. To perform such an installation, you must meet the following conditions:
| Product / Application | Software | Introduced Release |
|---|---|---|
| SRX5400 | Junos OS | 12.1X46-D10 |
| SRX5600 | Junos OS | 11.4R3 |
| SRX5800 | Junos OS | 11.4R3 |