Modules Supported On Srx1400, Srx3400, And Srx3600 Services Gateways - Juniper SRX3600 Hardware Manual

processing, including session setup based on policies, fast packet processing for packets that match a
session, encryption and decryption, and IKE negotiation.
NPCs are CFM cards that receive inbound traffic from the IOCs and direct it to the appropriate SPC for
processing. Once services processing is complete, the NPC receives outbound traffic from the SPC(s)
and directs it back to the appropriate IOC. Additionally, the NPC buffers incoming traffic and queues
outgoing traffic, and also performs advanced traffic management, including DoS/DDoS protective
measures. For example, it can drop traffic to or from a particular IP address, protecting from ICMP, UDP,
and TCP SYN flooding, and buffering bursty traffic to protect the SPC.
The Routing Engine is a PowerPC platform that runs the Junos operating system (Junos OS). Unlike
other modules, the Routing Engine is not in the CFM form factor, and so has an assigned slot within the
chassis (RE0). Software processes that run on the Routing Engine maintain the routing tables, manage
the routing protocols used on the services gateway, control the services gateway interfaces, control
some chassis components, and provide the interface for system management and user access to the
services gateway.
The SRX Clustering Module (SCM) is a card that you can install in the services gateway to enable the
dual control link feature for chassis cluster supported in Junos OS Release 10.2 and later. Unlike other
modules, the SCM is not in the CFM form factor, and so has an assigned slot within the chassis (RE1).
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Modules Supported on SRX1400, SRX3400, and SRX3600 Services Gateways | 28

Eligible Slots for SRX1400, SRX3400, and SRX3600 Services Gateway Modules | 30
Installing Common Form Factor Modules In SRX1400, SRX3400, and SRX3600 Services Gateways
Modules Supported on SRX1400, SRX3400, and SRX3600 Services
Gateways
Table 9 on page 28 describes the modules supported on the SRX1400, SRX3400, and SRX3600 Services
Gateways.
Table 9: Supported Modules for SRX1400, SRX3400, and SRX3600 Services Gateways
Module Name and Number
Services Processing Cards (SPCs)
Earliest Supported Junos OS Release
SRX1400 SRX3400
28
SRX3600