Juniper SRX 5800 Bedienungsanleitung

SRX 5600 and SRX 5800

Services Gateway

Switch Control Board

Installation Instructions

August 2008

Part Number: 530-026269-01

Revision 01

This document describes how to remove and replace a Switch Control Board (SCB)

on a Juniper Networks SRX 5600 and SRX 5800 services gateway. The illustrations

in this document show the SRX 5800 services gateway, but the instructions apply to

all SRX 5600 and SRX 5800 services gateways.

Contents Switch Control Board .......................................................................................2

SCB Slots ...................................................................................................2

SCB Redundancy ......................................................................................3

SCB Components ......................................................................................3

SCB LEDs ..................................................................................................3

Replacing an SCB ............................................................................................4

Powering Off the Services Gateway ..........................................................4

Operating and Positioning the SCB Ejectors ..............................................5

Removing an SCB .....................................................................................5

Installing an SCB .......................................................................................6

Preventing Electrostatic Discharge Damage ....................................................8

Electrostatic Discharge Point ...........................................................................9

List of Technical Publications ........................................................................10

Requesting Technical Support .......................................................................11

Revision History ............................................................................................12

■1

Switch Control Board

The Switch Control Board (SCB) provides the following functions:

■Powers on and powers off IOCs and SPCs

■Controls clocking, system resets, and booting

■Monitors and controls system functions, including fan speed, board power status,

PDM status and control, and the system front panel

■Provides interconnections to all the IOCs within the chassis through the switch

fabrics integrated into the SCB

When the SCB is part of a host subsystem, the Routing Engine installs directly into

a slot on the SCB (see Figure 1 on page 2).

Figure 1: SCB

SCB Slots

You must install at least one SCB in the services gateway as part of a host subsystem.

The SCBs install into the front of the chassis in the slots labeled 0and 1on an SRX

5600 services gateway and 0, 1, and 2/6 on an SRX 5800 services gateway. If any

slots are empty, you must install a blank panel.

2■Switch Control Board

SRX 5600 and SRX 5800 Services Gateway Switch Control Board Installation Instructions

SCB Redundancy

If two SCBs are installed in an SRX 5600 services gateway, one SCB functions as the

master SCB and the other as its backup. If the master fails or is removed, the backup

becomes the master.

On SRX 5800 services gateways, SCBs installed in slots 0and 1provide nonredundant

fabric connections. A third installed SCB in slot 2/6 provides fabric redundancy but

no additional control or routing functions.

Table 1: SCB Slot Mapping and Functionality

SRX 5800 Services GatewaySRX 5600 Services GatewayFunctionality

SCBs in slot 0and slot 1SCB in slot 0

Full fabric (nonredundant)

SCBs in slot 0, slot 1, and slot 2/6SCBs in slot 0and slot 1

Redundant fabric

SCB Components

Each SCB consists of the following components:

■Chassis management Ethernet switch.

■I2C bus logic, used for low-level communication with each component.

■Component redundancy circuitry.

■Control Board/Routing Engine mastership mechanism.

■Gigabit Ethernet switch that is connected to the embedded CPU complex on all

components.

■Switch fabric—Provides the switching functions for the I/O cards (IOC)s.

■Control FPGA—Provides the Peripheral Component Interconnect (PCI) interface

to the Routing Engine.

■1000Base-T Ethernet controller—Provides a 1-Gbps Ethernet link between the

Routing Engines.

■Ethernet switch—Provides 1-Gbps link speeds between the Routing Engine and

the IOCs.

■Circuits for chassis management and control.

■Power circuits for the Routing Engine and SCB.

■LEDs—Provide status (see “SCB LEDs”on page 3).

SCB LEDs

Three LEDs on the SCB indicate the status of the SCB. The LEDs, labeled FABRIC

ACTIVE, FABRIC ONLY, and OK/FAIL, are located directly on the SCB. Table 2 on page

4 describes the functions of the SCB LEDs.

Switch Control Board ■3

Switch Control Board

Table 2: Switch Control Board LEDs

DescriptionStateColorLabel

Fabric is in active mode.On steadilyGreen

FABRIC

ACTIVE

SCB operates in fabric-only mode.On steadilyGreen

FABRIC

ONLY

SCB operates in fabric/control board mode.Off

SCB is online.On steadilyGreen

OK/FAIL

SCB is offline.Off

SCB has failed.On steadilyRed

Replacing an SCB

The services gateway can have up to three SCBs. They are located in the front of the

chassis in the slots marked 0and 1on an SRX 5600 services gateway and 0, 1, and

2/6 on an SRX 5800 services gateway. With a Routing Engine installed, the SCB

weighs approximately 9.6 lb (4.4 kg).

Before you replace an SCB or a Routing Engine, you must power off the services

gateway (see “Powering Off the Services Gateway”on page 4). To replace an SCB,

use the following procedures:

■Powering Off the Services Gateway on page 4

■Operating and Positioning the SCB Ejectors on page 5

■Removing an SCB on page 5

■Installing an SCB on page 6

Powering Off the Services Gateway

Before installing or removing SCBs you must power off the services gateway:

1. On the external management device connected to the Routing Engine, issue the

request system halt operational mode command. The command shuts down the

Routing Engine cleanly, so its state information is preserved.

user@host> request system halt

Wait until a message appears on the console confirming that the operating system

has halted. For more information about the command, see the JUNOS System

Basics and Services Command Reference.

2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and

connect the strap to one of the ESD points on the chassis. For more information

about ESD, see “Preventing Electrostatic Discharge Damage”on page 8.

4■Replacing an SCB

SRX 5600 and SRX 5800 Services Gateway Switch Control Board Installation Instructions

3. On an AC-powered services gateway, switch the circuit breaker on each power

supply to the off position (O). On a DC-powered services gateway, switch the

circuit breaker on each power supply to the off position (OFF).

Operating and Positioning the SCB Ejectors

■When removing or inserting an SCB, ensure that the SCBs or blank panels in

adjacent slots are fully inserted to avoid hitting them with the ejector handles.

The ejector handles require that all adjacent components be completely inserted

so the ejector handles do not hit them, which could result in damage.

■The ejector handles have a center of rotation and need to be stored toward the

center of the board. Ensure the long ends of the ejectors located at both the top

and the bottom on an SRX 5800 services gateway, left and right on an SRX 5600

services gateway of the board are horizontal and pressed as far as possible

towards the center of the board.

■To insert or remove the SCB, slide the ejector across the SCB horizontally, rotate

it, and slide it again another quarter of a turn. Turn the ejector again and repeat

as necessary. Utilize the indexing feature to maximize leverage and to avoid

hitting any adjacent components.

■Operate both ejector handles simultaneously. The insertion force on an SCB is

too great for one ejector.

Removing an SCB

To remove an SCB (see Figure 2 on page 6):

NOTE: The SCB and Routing Engine are removed as a unit. You can also remove the

Routing Engine separately.

1. Power off the device. See “Powering Off the Services Gateway”on page 4.

2. Place an electrostatic bag or antistatic mat on a flat, stable surface.

3. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and

connect the strap to one of the ESD points on the chassis. For more information

about ESD, see “Preventing Electrostatic Discharge Damage”on page 8.

4. Rotate the ejector handles simultaneously counterclockwise to unseat the SCB.

5. Grasp the ejector handles and slide the SCB about halfway out of the chassis.

6. Place one hand underneath the SCB to support it and slide it completely out of

the chassis.

7. Place the SCB on the antistatic mat.

8. If you are not replacing the SCB now, install a blank panel over the empty slot.

Replacing an SCB ■5

Replacing an SCB

Figure 2: Removing an SCB

Installing an SCB

To install an SCB (see Figure 3 on page 8):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and

connect the strap to one of the ESD points on the chassis. For more information

about ESD, see “Preventing Electrostatic Discharge Damage”on page 8.

2. If you have not already done so, power off the device as described in “Powering

Off the Services Gateway”on page 4.

3. Carefully align the sides of the SCB with the guides inside the chassis.

4. Slide the SCB into the chassis until you feel resistance, carefully ensuring that it

is correctly aligned.

5. Grasp both ejector handles and rotate them simultaneously clockwise until the

SCB is fully seated.

6. Place the ejector handles in the proper position, horizontally and toward the

center of the board.

7. Switch the circuit breaker or toggle switch for each power supply to the ON

position to start the device. The OK LED on the power supply faceplate should

blink, then light steadily.

6■Replacing an SCB

SRX 5600 and SRX 5800 Services Gateway Switch Control Board Installation Instructions

For detailed instructions on powering-on the device see the SRX 5600 Services

Gateway Hardware Guide or the SRX 5800 Services Gateway Hardware Guide.

8. To verify that the SCB is functioning normally, check the LEDs on its faceplate.

The green OK/FAIL LED should light steadily a few minutes after the SCB is

installed. If the OK/FAIL LED is red, remove and install the SCB again (see

“Removing an SCB”on page 5 and “Installing an SCB”on page 6). If the

OK/FAIL LED still lights steadily, the SCB is not functioning properly. Contact

your customer support representative.

To check the status of the SCB:

user@host> show chassis environment cb

CB 0 status:

State Online Master

Temperature 30 degrees C / 86 degrees F

Power 1

1.2 V 1202 mV

1.5 V 1511 mV

1.8 V 1798 mV

2.5 V 2481 mV

3.3 V 3306 mV

5.0 V 4956 mV

12.0 V 12084 mV

1.25 V 1250 mV

3.3 V SM3 3287 mV

5.0 V RE 5046 mV

12.0 V RE 11910 mV

Power 2

11.3 V bias PEM 11292 mV

4.6 V bias MidPlane 4833 mV

11.3 V bias FPD 11156 mV

11.3 V bias POE 0 11253 mV

11.3 V bias POE 1 11272 mV

Bus Revision 42

FPGA Revision 1

CB 1 status:

State Online

Temperature 31 degrees C / 87 degrees F

Power 1

1.2 V 1205 mV

1.5 V 1508 mV

1.8 V 1817 mV

2.5 V 2507 mV

3.3 V 3306 mV

5.0 V 5053 mV

12.0 V 12200 mV

1.25 V 1256 mV

3.3 V SM3 3306 mV

5.0 V RE 5091 mV

12.0 V RE 0 mV

Power 2

11.3 V bias PEM 11214 mV

4.6 V bias MidPlane 4821 mV

11.3 V bias FPD 11350 mV

11.3 V bias POE 0 11350 mV

11.3 V bias POE 1 11330 mV

Bus Revision 42

FPGA Revision 0

Replacing an SCB ■7

Replacing an SCB

Figure 3: Installing an SCB

Preventing Electrostatic Discharge Damage

Many services gateway hardware components are sensitive to damage from static

electricity. Some components can be impaired by voltages as low as 30 V. You can

easily generate potentially damaging static voltages whenever you handle plastic or

foam packing material or if you move components across plastic or carpets. Observe

the following guidelines to minimize the potential for electrostatic discharge (ESD)

damage, which can cause intermittent or complete component failures:

■Always use an ESD wrist strap or ankle strap, and verify that it is in direct contact

with your skin.

CAUTION: For safety, periodically check the resistance value of the ESD strap. The

measurement should be in the range of 1 to 10 Mohms.

■When handling any component that has been removed from the chassis, verify

that the equipment end of your ESD strap is attached to one of the ESD points

on the chassis, which are shown in Figure 5 on page 9, and Figure 6 on page 10.

8■Preventing Electrostatic Discharge Damage

SRX 5600 and SRX 5800 Services Gateway Switch Control Board Installation Instructions

■Avoid contact between the component and your clothing. ESD voltages emitted

from clothing can still damage components.

■When removing or installing a component, always place it component-side up

on an antistatic surface, in an antistatic card rack, or into an electrostatic bag

(see Figure 4 on page 9). If you are returning a component, place it into an

electrostatic bag before packing it.

Figure 4: Placing a Component into an Electrostatic Bag

Electrostatic Discharge Point

Figure 5 on page 9 and Figure 6 on page 10 show the location of the ESD point on

the front of each chassis.

Figure 5: Front View of a Fully Configured SRX 5600 Services Gateway Chassis

Electrostatic Discharge Point ■9

Electrostatic Discharge Point

Figure 6: Front View of a Fully Configured SRX 5800 Services Gateway Chassis

List of Technical Publications

Table 3 on page 10 lists the hardware guides and release notes for Juniper Networks

SRX–series services gateways and describes the contents of each document. All

documents are available at http://www.juniper.net/techpubs/.

Table 3: Technical Documentation for Supported Devices

DescriptionBook

Hardware Documentation

Describes how to install, maintain, and troubleshoot the services

gateway and components. Each services gateway type has its own

hardware guide.

SRX 5600 Services Gateway Hardware Guide or

SRX 5800 Services Gateway Hardware Guide

Release Notes

10 ■List of Technical Publications

SRX 5600 and SRX 5800 Services Gateway Switch Control Board Installation Instructions

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