Juniper EX4100-F- 24P/T Manuel utilisateur

Letter of Volatility

IDENTIFICATION OF VOLATILE

AND NON-VOLATILE STORAGE

AND

SANITIZATION OF SYSTEM

COMPONENTS

JUNIPER NETWORKS

EX4100-F- 24P/T

REVISION 1.0

December 27, 2022

 Letter of Volatility EX4100-F-24P/T 2/2/2023 
 
 
 UNCLASSIFIED 
 
TABLE OF CONTENTS 
 
1Introduction...............................................................................................1 
1.1 Purpose ..............................................................................................1 
1.2 Scope .................................................................................................1 
2Equipment Overview.................................................................................1 
2.1 Identification of Chassis......................................................................1 
2.2 Description of Field Replaceable Units (FRU) ....................................2 
3VOLATILE AND NON-VOLATILE MEMORIES ........................................2 
3.1 Power Down and Removal of memory devices..........................................3 
4System Power Down ................................................................................3 
4.1 Disassembly of the EX4100-F-24P/T Chassis and Identification of NV 
storage.........................................................................................................3 
5Follow the assembly procedure in reverse order to assemble the 
EX4100-F-24P/T Chassis.............................................................................7 
 
 
 TABLE OF FIGURES 
 
Figure 2 1: EX4100-F-24P/T....……………………………………………………2 
Figure 4 1: PSU FRUs……………………………………………………………...3 
Figure 4 2: Top cover screws……………………………………………………...4 
Figure 4 3: Side screws of Top Cover…………………………………………….5 
Figure 4 5: Locate On-Board memory Chip and Battery………………………..8 
Figure 4 6: Locate NV storage (eUSB)…………………………………….……..8 
Figure 4 7: Locate NIC internal Firmware Flash and Mainboard EEPROM)…8 
Figure 4 6: Locate MainBoard - CPLD and Uboot SPI Flash……………..……9 
 
 
 

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

1 INTRODUCTION

1.1 Purpose

The purpose of this document is to provide direction to identify and remove all

non-volatile (NV) storage from the Juniper Networks EX4100-F-24P/T platform.

Non-Volatile (NV) storage is a system memory that can store user data

information and system configuration data even when system not powered.

Volatile (V) storage is a system memory that only retains data or its contents

while system powered but when system powered off or interrupted, its data or

contents are immediately lost.

1.2 Scope

This document only addresses the EX4100-F-24P/T platform. While other

platforms offered by Juniper Networks may contain similar hardware

components, this document only applies to these devices. Furthermore, this

document only provides direction for the identification and removal of NV

storage components. It does not address destruction procedures for those

components. As all the NV storage components used in the EX4100-F-24P/T

are commercial off-the-shelf (COTS) components, directions for destruction of

those components are left to the governing Department, Agency, or Office.

2 EQUIPMENT OVERVIEW

2.1 Identification of Chassis

Juniper Networks EX4100-F-24P/T Ethernet Switches provide connectivity for

high-density environments and scalability for growing networks. These

switches can be deployed wherever you need high density of Gigabit Ethernet

ports or redundancy. Typically, EX4100-F-24P/T switches are used in large

branch offices, campus wiring closets, and data centers. In datacenters,

EX4100-F-24P/T switches can be positioned as top-of-rack switches; the top

devices in a rack to provide connectivity for all the devices in the rack. Juniper

Networks SRX Series Ethernet Switches run Junos OS, which provides Layer2

and Layer3 switching, routing, and security services.

The 24-ports EX4100-F-24P/T switch with gigabit ports and provide built-in

Ethernet network ports, 0-23 built-in 1G ports, 0-3 built-in 4x10G SFP+

(Uplink-ports), 0-3 built-in 4x10G SFP+ (Stack ports) Ethernet network ports.

Ethernet network ports support 1Gbps,10Gbps EX4100-F-24P/T is designed to

fit in a standard 19" rack.

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

Figure 2-1: EX4100-F-24P/T

2.2 Description of Field Replaceable Units (FRU)

The power supply and transceivers are hot-swappable. You can remove and

replace them without powering off the system or disrupting system functions.

None of these components contain NV RAM. All NV RAM is either soldered or

installed onto the system board.

3 VOLATILE AND NON-VOLATILE MEMORIES

This section covers the identification of volatile and non-volatile memories on

EX4100-F-24P/T system.

Main Board:

Non-volatile devices are listed below.

CONN 13 - eUSB (System storge) –stores user data.

U136, 137 - Uboot (SPI Flash)

U21 - IDEEPROM

U33 - Main-board CPLD

U192 - Golden CPLD

Volatile devices are listed below.

U14, U17, U22, U31, U34 - On Board DDR Memory

BA1, U140 - RTC battery

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

3.1 POWER DOWN AND REMOVAL OF MEMORY DEVICES

To ensure that no user data or system configurations remain reside on a

EX4100-F-24P/T platform, the following steps must be performed:

1. Power must be removed from the system to clear all volatile storage.

2. Volatile and Non-volatile memory components must be removed

from the system board.

Following section provides the instructions on how to remove these

components in detail.

4 SYSTEM POWER DOWN

Power down the system by removing any connected power cords from power

supply.

4.1 Disassembly of the EX4100-F-24P/T Chassis and Identification of

NV storage

The EX4100-F-24P/T does contain NV storages that is replaceable as well as

it is soldered to the system board. To access the memory for removal, refer to

the following steps:

1. Removing ear-mounts on both left and right side.

2. In-Built Power Supplies in device

Figure 4-1: NON-Removable PSU FRUs

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

3. Remove Six screws on top side (figure 4-2)

Figure 4-2: Top cover screws

(Figure 4-3) Slide and lift to remove the Top cover.

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

Figure 4-4: Side screws of Top Cover

4. Locate Volatile On Board memory (U14), and System CPLD (U33)on

the Main Board (figure 4-5)

Figure 4-5: Locate On Board Memory and System CPLD

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

5.Locate NON-Volatile storage on Main Board and RTC Battery (figure 4-6).

Figure 4-6: Locate NV storage (eUSB & RTC Battery)

5. System Main Board ID EEPROM

Top side (figure 4-7).

Figure 4-7: Locate NIC System Mainboard EEPROM

Letter of Volatility EX4100-F-24P/T 2/2/2023

UNCLASSIFIED

6. Locate Uboot SPI FLASH (Bottom side) and Golden CPLD FW (Bottom

Side ) from the Main Board Top Side (figure 4-8).

Figure 4.8: CPU-CPLD and Uboot SPI Flash

NOTE : Before removal, ensure J-TAC and the appropriate account team has

been notified of your intentions.

5 FOLLOW THE ASSEMBLY PROCEDURE IN REVERSE ORDER TO

ASSEMBLE THE EX4100-F-24P/T CHASSIS.

Table des matières

Autres manuels Juniper Matériel réseau

Juniper

Juniper MX240 - UPGRADING Manuel utilisateur

Juniper

Juniper SSG5 Manuel

Juniper

Juniper WX 100 Manuel utilisateur

Juniper

Juniper Junos Space JA2500 Instructions d'installation

Juniper

Juniper SSR130 Manuel utilisateur

Juniper

Juniper SSR130 Instructions d'installation

Juniper

Juniper CTP1000 Series Instructions d'installation

Juniper

Juniper JSA7800 Manuel utilisateur

Juniper

Juniper NFX150 Instructions d'installation

Juniper

Juniper Junos Space JA1500 Manuel utilisateur

Juniper

Juniper CTP2000 Series Guide de démarrage rapide

Juniper

Juniper JCS1200 Mode d’emploi

Juniper

Juniper NFX150-S1 Manuel utilisateur

Juniper

Juniper JSA5800 Instructions d'installation

Juniper

Juniper MX240 Manuel utilisateur

Juniper

Juniper CSE2000 Manuel

Juniper

Juniper QFX Series Manuel utilisateur

Juniper

Juniper MX150 Instructions d'installation

Juniper

Juniper SSR1500 Manuel utilisateur

Juniper

Juniper MX150 Manuel utilisateur

Juniper

Juniper SSR1500 Manuel utilisateur

Juniper

Juniper DUAL-PORT T1-E1 GPIMS Manuel utilisateur

Juniper

Juniper T1600 Manuel utilisateur

Juniper

Juniper SSR1300 Instructions d'installation

Manuels Matériel réseau populaires d'autres marques

Matrix Switch Corporation

Matrix Switch Corporation MSC-HD161DEL Manuel utilisateur

B&B Electronics

B&B Electronics ZXT9-IO-222R2 Manuel utilisateur

Yudor

Yudor YDS-16 Manuel utilisateur

D-Link

D-Link ShareCenter DNS-320L Manuel utilisateur

Samsung

Samsung ES1642dc Instructions d'utilisation

Honeywell Home

Honeywell Home LTEM-PV Instructions de montage

evertz

evertz 7700 Series Manuel utilisateur

D-Link

D-Link ShareCenter DNS-343 Manuel utilisateur

Asante

Asante AsanteBridge 1012 Manuel utilisateur

FireBrick

FireBrick FB2700 Manuel utilisateur

Audiovox Electronics

Audiovox Electronics ARWH2T Manuel utilisateur

ADC

ADC DSX-1 Manuel

NetComm

NetComm NF2 Manuel utilisateur

Alcatel-Lucent

Alcatel-Lucent 5620 Manuel utilisateur

Dell EMC

Dell EMC XC6420 Series Manuel utilisateur

Lanner

Lanner NCA-1020A Manuel utilisateur

Allied Telesis

Allied Telesis AT-TN121-A Manuel utilisateur

Arista

Arista CCA-ETM-Q12 Manuel utilisateur