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
OK
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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