CHAPTER 1
Overview
IN THIS CHAPTER
SRX5400, SRX5600, and SRX5800 Firewall Card Overview | 2
Cards Supported on SRX5400, SRX5600, and SRX5800 Firewalls | 3
SRX5400, SRX5600, and SRX5800 Firewall Card Overview
The cards described in this guide let you upgrade and customize your SRX5400, SRX5600, or SRX5800
Firewall to suit the needs of your network. The following types of cards are available for the SRX5400,
SRX5600, and SRX5800 Firewalls:
• I/O cards (IOCs) provide addional physical network connecons to the rewall. Their primary
funcon is to deliver data packets arriving on the physical ports to the Services Processing Cards
(SPCs) and to forward data packets out the physical ports aer services processing.
• Flex IOCs have two slots for port modules that add addional physical network connecons to the
rewall. Like IOCs, their primary funcon is to deliver data packets arriving on the physical ports to
the SPCs and to forward data packets out the physical ports aer services processing.
• Modular Port Concentrators (MPCs) have slots on the front panel that accept smaller cards called
Modular Interface Cards (MICs). Each MIC has one or more physical interfaces on it. An MPC with
MICs installed funcons in the same way as a regular I/O card (IOC), but allows greater exibility in
adding dierent types of Ethernet ports to your rewall. MPCs and MICs are similar in form and
funcon to Flex IOCs and port modules. However, the two use dierent form-factors, so you cannot
install port modules in an MPC, nor can you install MICs in a Flex IOC.
• Services Processing Cards (SPCs) provide the processing power to run integrated services such as
rewall, IPsec and IDP. All trac traversing the rewall is passed to an SPC to have services
processing applied to it.
• Switch Control Boards (SCBs) power on and power o IOCs and SPCs; control clocking and system
resets; and control boong, monitor, and system funcons. Each SCB has a slot in the front panel for
a Roung Engine.
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