Juniper T1600 Manuale di installazione e funzionamento

T1600 Internet Routing Node Upgrade

Guide

28 April 2008

Part Number: 530-021924-01

Revision 2

This guide provides procedures for upgrading an operational T640 Internet routing

node to a T1600 Internet routing node. These procedures include preparing the site,

replacing hardware, and verifying operation.

NOTE: Before you upgrade, the T640 routing node must be running JUNOS Release

8.5 or later.

Contents T1600 Routing Node Overview .......................................................................3

T1600 Upgrade Kit ..........................................................................................5

Power Supplies .........................................................................................6

Three-Input 240-A Power Supplies .....................................................6

T1600-SIBs ...............................................................................................9

T1600 Routing Node Upgrade Overview .......................................................10

Verifying the Hardware Version of the Rear Fan Tray ...................................11

Preparing the Site ..........................................................................................12

Typical Power Distribution ......................................................................12

Provisioning Additional Power for the T1600 Routing Node ...................13

Replacing the Rear Fan Tray .........................................................................13

Removing the Rear Fan Tray ..................................................................14

Installing a Rear Fan Tray .......................................................................15

Upgrading the DC Power Supplies .................................................................17

Preparing the DC Power Cables ..............................................................17

Tools and Parts Required ........................................................................17

Removing a Two-Input 160-A Power Supply ...........................................18

Setting the Input Mode Switch on a Three-Input 240-A Power

Supply ..............................................................................................21

■1

Installing a Three-Input 240-A Power Supply ..........................................22

Replacing the Cable Restraint on a Three-Input 240-A Power Supply ......23

Removing the Standard Cable Restraint from a Three-Input 240-A

Power Supply .............................................................................24

Installing the Optional Cable Restraint on a Three-Input 240-A Power

Supply ........................................................................................24

Connecting a Three-Input 240-A Power Supply .......................................25

Powering On a Three-Input 240-A Power Supply ....................................26

Upgrading SIBs ..............................................................................................27

Overview of Upgrading the SIBs .............................................................28

Preparing to Upgrade the SIBs ................................................................29

Tools Required ........................................................................................30

Removing a Standard SIB or SIB Version B .............................................30

Installing a T1600-SIB .............................................................................32

Verifying the Installation of a T1600-SIB .................................................33

Preparing to Exit Upgrade Mode .............................................................33

Exiting Upgrade Mode ............................................................................34

Verifying Operation ................................................................................35

Removing the Upper Front Fan Tray .............................................................39

Replacing the Craft Interface .........................................................................40

Removing the Craft Interface ..................................................................40

Installing the Craft Interface ....................................................................41

Installing the Upper Front Fan Tray ...............................................................42

Attaching the T1600 Agency Label ................................................................42

Registering Your T1600 Upgrade ...................................................................43

T1600 Routing Node Environmental Specifications .......................................43

T1600 Routing Node DC Power Specifications ..............................................44

Power System Electrical Specifications ...................................................44

Three-Input 240-A Power Supply Specifications ......................................45

DC Power Cable Specifications ...............................................................46

Preventing Electrostatic Discharge Damage ..................................................47

List of Technical Publications ........................................................................48

Documentation Feedback ..............................................................................54

Requesting Technical Support .......................................................................55

Revision History ............................................................................................56

2■

T1600 Routing Node Upgrade Guide

T1600 Routing Node Overview

The T1600 Internet routing node is a complete routing system that provides Gigabit

Ethernet, SONET/SDH, and other high-speed interfaces for large networks and network

applications, such as those supported by Internet service providers (ISPs). The routing

node accommodates up to eight Flexible PIC Concentrators (FPCs), which can each

be configured with a variety of network media types. The T1600 routing node provides

up to 800 gigabits per second (Gbps), full duplex (1600 Gbps of any-to-any,

non-blocking, half-duplex switching).

The routing node architecture cleanly separates control operations from packet

forwarding operations. This design eliminates processing and traffic bottlenecks,

permitting the routing node to achieve high performance.

■Control operations in the routing node are performed by the host subsystem,

which runs JUNOS Internet software to handle routing protocols, traffic

engineering, policy, policing, monitoring, and configuration management.

■Forwarding operations in the routing node are performed by the Packet

Forwarding Engines, which consist of hardware, including ASICs, designed by

Juniper Networks. Application-specific integrated circuits (ASICs) are a definitive

part of the routing node design; these ASICs enable the routing node to achieve

data forwarding rates that match current fiber-optic capacity. The T1600 routing

node provides up to a total of 1600 million packets per second (Mpps) of

forwarding.

Figure 1 on page 4 and Figure 2 on page 5 illustrate the front and rear of a T1600

routing node.

T1600 Routing Node Overview ■3

T1600 Routing Node Overview

Figure 1: Front View of the T1600 Routing Node

4■T1600 Routing Node Overview

T1600 Routing Node Upgrade Guide

Figure 2: Rear View of the T1600 Routing Node

T1600 Upgrade Kit

To upgrade a T640 routing node to a T1600 routing node, you install the following

hardware components:

■Two redundant, load-sharing, three-input 240-A power supplies that connect to

the rear of the midplane

■Five T1600-SIBs

■One T1600 craft interface panel

You can order these components individually or order a T1600 upgrade kit that

contains all the components. You must supply four additional DC power cables.

T1600 Upgrade Kit ■5

T1600 Upgrade Kit

NOTE: These components must be installed before you can install a T1600-FPC in

the T1600 routing node.

Power Supplies

Two redundant, load-sharing DC power supplies are located at the lower rear of the

chassis in slots PEM0 and PEM1 (top to bottom). For power specifications for the

system, power supplies, and power cables, see “T1600 Routing Node DC Power

Specifications”on page 44.

Three-Input 240-A Power Supplies

Each three-input 240-A power supply weighs approximately 25 lb. (11.3 kg) and

consists of three inputs, three 80-A circuit breakers, a fan, and LEDs to monitor the

status of the power supply. Figure 3 on page 6 shows the three-input 240-A power

supply.

Figure 3: Three-Input 240-A Power Supply

Three-Input 240-A Power Supply Inputs

The three-input 240-A DC power supply inputs are labeled INPUT 0, INPUT 1, and

INPUT 2, from top to bottom. Each input consists of –48 VDC and return—each with

its own 80-A circuit breaker. The input mode switch on the faceplate allows you to

set the DC power supply to either two-input or three-input mode mode. Three-input

mode is required for the T1600 routing node. Two-input mode is not currently

supported.

Table 1 on page 7 describes which components are powered by each input.

6■T1600 Upgrade Kit

T1600 Routing Node Upgrade Guide

Table 1: Components Powered by Each Three-Input 240-A Power Supply Input

Two-Input ModeThree-Input ModeInput

FPCs in slots FPC0 and FPC1, SIBs, T-CBs,

fan trays, and Routing Engines

T1600-SIBs, T-CBs, fan trays, and

Routing Engines

INPUT 0

FPCs in slots FPC2 and FPC7FPCs in slots FPC4 through FPC7INPUT 1

Not applicable

FPCs in slots FPC0 through FPC3INPUT 2

Three-Input 240-A Power Supply Load Sharing and Fault Tolerance

When the routing node is operating normally and both power supplies are switched

on, load sharing between them occurs automatically. When one power supply fails

or is turned off, the other power supply immediately assumes the entire electrical

load for the system. A single power supply can provide full power for as long as the

routing node is operational. Table 2 on page 7 describes the behavior of the power

supply if one of the inputs fails.

Table 2: Fault Tolerance

Two-Input ModeThree-Input ModeInput

If this input fails, INPUT 0 and INPUT 1

shut down. The power supply shuts

down, and the other power supply

assumes the electrical load of INPUT 0

and INPUT 1.

If this input fails, INPUT 0, INPUT 1,

and INPUT 2 shut down. The power

supply shuts down, and the other

power supply assumes the electrical

load for all three inputs.

INPUT 0

If this input fails, INPUT 0 is

unaffected and INPUT 1 shuts down.

The other power supply assumes the

electrical load of INPUT 1.

If this input fails, INPUT 0 is

unaffected and INPUT 1 and INPUT 2

shut down. The other power supply

assumes the electrical load of INPUT 1

and INPUT 2.

INPUT 1

Not applicable

If this input fails, INPUT 0 is

unaffected and INPUT 1 and INPUT 2

shut down. The other power supply

assumes the electrical load of INPUT 1

and INPUT 2.

INPUT 2

Three-Input 240-A Power Supply LEDs

LEDs on each power supply faceplate (see Figure 4 on page 8) indicate the status

of the power supply. In addition, a power supply failure triggers the red alarm LED

on the craft interface. Table 3 on page 8 describes the functions of the power supply

LEDs.

T1600 Upgrade Kit ■7

T1600 Upgrade Kit

Figure 4: Three-Input 240-A Power Supply LEDs

Table 3 on page 8 describes the three-input 240-A power supply LEDs.

Table 3: Three-Input 240-A Power Supply LEDs

DescriptionStateColorLED

Circuit breaker is on.On steadilyGreen

CB ON—One per

input

Circuit breaker is not turned on, or

host subsystem has detected a

failure and has turned the circuit

breaker off.

Off

When the power supply is correctly

set to three-input mode mode and

all three inputs are properly

energized, the DC OK LED indicates

that the power supply is

functioning normally.

When the power supply is correctly

set to two-input mode and INPUT 0

and INPUT 1 are both properly

energized, the DC OK LED indicates

that the power supply is

functioning normally.

On steadilyBlue

DC OK—One per

power supply

Power supply is starting up, is not

functioning, is not properly

installed, or is not operating

properly.

Blinking

Input is receiving voltage.On steadilyGreen

INPUT

PRESENT—One

per input Input voltage is not present.Off

Power supply has exceeded

recommended temperature.

On steadilyAmber

OVER

TEMP—One per

power supply

Power supply is within the

recommended temperature or the

power supply is not on.

Off

8■T1600 Upgrade Kit

T1600 Routing Node Upgrade Guide

T1600-SIBs

Figure 5 on page 9 shows a T1600-SIB.

Figure 5: T1600-SIB

Each T1600-SIB consists of the following components:

■Switch fabric ASICs.

■High-speed links to each FPC.

■SIB online/offline button, located on the SIB faceplate.

■Three LEDs located on the SIB faceplate that display the status of the SIB.

Table 4 on page 9 describes the functions of the SIB LEDs. If all three LEDs are

off, the SIB is not receiving power. The craft interface has three additional LEDs

that show the status of each T1600-SIB. The OK and FAIL LEDs are replicated on

the craft interface.

Table 4: SIB LEDs

DescriptionStateColorLabel

SIB is in active mode.On steadilyGreen

ACTIVE

SIB is functioning normally.On steadilyGreen

SIB is starting up.Blinking

SIB has failed.On steadilyAmber

FAIL

Each SIB weighs approximately 6.5 lb (3 kg).

T1600 Upgrade Kit ■9

T1600 Upgrade Kit

T1600 Routing Node Upgrade Overview

NOTE: The T640 routing node can be upgraded while the routing node is powered

on and operational.

NOTE: During the SIB upgrade:

■The routing node should not experience packet loss if the traffic is less than

50 percent per Packet Forwarding Engine in each FPC.

■The routing node might experience some packet loss if the traffic is more than

50 percent per Packet Forwarding Engine in each FPC, depending on the

operational environment.

For more information, contact your customer support representative.

To upgrade the T640 routing node, use the following procedures:

1. If you have not already done so, install JUNOS Release 8.5 or later in the T640

routing node.

2. Verify that the required hardware version of the rear fan tray is installed. If

needed, order a new rear fan tray.

3. Prepare the site. Provision additional power as needed.

4. Remove one two-input 160-A power supply.

5. Install a three-input 240-A power supply.

6. Replace the other power supply.

7. Upgrade the existing standard SIBs to T1600-SIBs.

8. Remove the upper fan tray.

9. Replace the craft interface.

10. Reinstall the upper fan tray.

11. Verify the installation of components.

12. Attach the T1600 agency label.

13. Register your T1600 upgrade.

NOTE: Do not install T1600-FPC4s until after all upgrade procedures are completed.

10 ■T1600 Routing Node Upgrade Overview

T1600 Routing Node Upgrade Guide

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