Network Processing Cards - Juniper SRX1400 Hardware Manual

Appendix E: Using SRX3000 Series Services Gateway Hardware Components on SRX1400 Services Gateway

Network Processing Cards

Copyright © 2011, Juniper Networks, Inc.
Network Processing Cards (NPCs) are common form-factor module (CFM) cards that
receive inbound traffic from the I/O cards (IOCs) and direct it to the appropriate Services
Processing Card (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 performs the following functions:
Buffers incoming traffic and queues outgoing traffic.
Performs advanced traffic management, including denial of service/distributed denial
of service (DoS/DDoS) protective measures. For example, it can drop traffic to or from
a particular IP address, protecting the device from Internet Control Message Protocol
(ICMP), UDP, and TCP SYN flooding, and buffering bursty traffic to protect the SPC.
NOTE:
If a CFM slot is not occupied by a card, you must install a blank panel to
shield the empty slot and to allow cooling air to circulate properly through
the device.
The ONLINE button on NPC does not perform any function and currently
it is not supported.
Figure 65 on page 211 shows the NPC that can be used on SRX1400 Services Gateway.
Figure 65: Network Processing Card
Table 53 on page 212 describes the NPC behavior indicated by the LEDs on its front panel.
SR X3K -NP
C
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