Juniper Networks J4350 - Manual (Page 35)

System Overview
To view the amount of DRAM installed on your router, issue the show chassis
routing-engine command.
EPROM—Stores the serial number of the Routing Engine.
To view the serial number of the Routing Engine, issue either the show chassis
routing-engine command or the show chassis hardware command.
Crypto Accelerator Module—Processor card that enhances performance
of cryptographic algorithms used in IP security (IPSec) services. The
cryptographic algorithms supported include Advanced Encryption Standard
(AES), Data Encryption Standard (DES), triple DES (3DES), Hashed Message
Authentication Code-Message Digest 5 (HMAC-MD5), and HMAC-Secure Hash
Algorithm 1 (SHA-1). The Crypto Module is a standard feature of J6350
Services Routers and an optional feature of J4350 Services Routers.
To determine whether there is a Crypto Accelerator Module installed on your
router, issue the
show chassis hardware command.
Compact flash drive—Provides primary storage for software images,
configuration files, and microcode. J4350 and J6350 routers have an internal
compact flash drive, located on the motherboard. For information about
replacing the compact flash drive, see “Replacing the Compact Flash Disk”
on page 149.
Boot Devices
The J4350 and J6350 Services Routers can boot from two devices:
Compact flash disk
USB storage device
Normally, the Services Router boots from the compact flash disk. If the compact
flash disk fails, the router attempts to boot from the USB storage device.
Front Panel
The front panel of the Services Router (see Figure 7 ) allows you to install or remove
PIMs, view router status LEDs, access the console port, and perform simple control
functions.
J4350 and J6350 Services Router Hardware Features 15