SRX5400 Host Subsystem
IN THIS SECTION
SRX5400 Firewall Host Subsystem Overview
The host subsystem is composed of a Routing Engine installed in a Switch Control Board (SCB). The host
subsystem provides the routing and system management functions of the firewall. You must install one
host subsystem on the device. The host subsystem components are as follows:
• Switch Control Board
• SRX5K-SCB-from Junos OS Release 9.2 to 12.3X48
• SRX5K-SCBE-from Junos OS Release 12.1X47-D15 and later
• SRX5K-SCB3-from Junos OS Release 15.1X49-D10 and later
• SRX5K-SCB4-from Junos OS Release 19.3R1 and later
NOTE: SRX5K-SCB4 is not supported on SRX5400 Firewalls.
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