SRX5800 Services Gateway Switch Control Board Components

Each SCB consists of the following components:

Chassis management Ethernet switch.
I2C bus logic, used for low-level communication with each component.
Component redundancy circuitry.
Control Board/Routing Engine mastership mechanism.
Gigabit Ethernet switch that is connected to the embedded CPU complex on all components.
Switch fabric—Provides the switching functions for the I/O Cards (IOC)s.
Control FPGA—Provides the Peripheral Component Interconnect (PCI) interface to the Routing Engine.
1000Base-T Ethernet controller—Provides a 1-Gbps Ethernet link between the Routing Engines.
Ethernet switch—Provides 1-Gbps link speeds between the Routing Engine and the IOCs.
Circuits for chassis management and control.
Power circuits for the Routing Engine and SCB.
LEDs—Provide status.