Juniper ACX2000, ACX2100 User Manual

ACX2000 and ACX2100 Universal Metro

Published

2020-11-10

Router Hardware Guide

Juniper Networks, Inc. 1133 Innovation Way Sunnyvale, California 94089 USA 408-745-2000 www.juniper.net

Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

ACX2000 and ACX2100 Universal Metro Router Hardware Guide

The information in this document is current as of the date on the title page.

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.

END USER LICENSE AGREEMENT

The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you agree to the terms and conditions of that EULA.

About the Documentation | ix

Documentation and Release Notes | ix

Using the Examples in This Manual | ix

Merging a Full Example | x

Merging a Snippet | xi

Documentation Conventions | xi

Documentation Feedback | xiv

Requesting Technical Support | xiv

Self-Help Online Tools and Resources | xv

Creating a Service Request with JTAC | xv

iii

Overview

ACX2000 and ACX2100 System Overview | 17

ACX2000 and ACX2100 Universal Metro Router Overview | 17

Benefits of the ACX2000 and ACX2100 Routers | 18

ACX2000 Router Description | 18

ACX2100 Router Description | 19

ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping | 20

ACX2000 Hardware and CLI Terminology Mapping | 20

ACX2100 Hardware and CLI Terminology Mapping | 22

Packet Flow on ACX Series Routers | 24

Protocols and Applications Supported by ACX Series Routers | 26

ACX2000 Chassis Components | 47

Front Panel of an ACX2000 Router | 47

Front Panel of an ACX2100 Router | 48

Uplink Ports on ACX2000 and ACX2100 Routers | 50

T1/E1 Ports | 51

Gigabit Ethernet RJ-45 Ports | 52

PoE Ports | 52

Gigabit Ethernet SFP Ports | 53

10-Gigabit Ethernet SFP+ Ports | 54

ACX2000 and ACX2100 Alarm Contact Port | 54

Clocking Ports on the ACX2000 and the ACX2100 Router | 56

LEDs on ACX2000 and ACX2100 Routers | 57

System LED on the Front Panel | 57

T1/E1 Port LEDs | 58

Ethernet Port LEDs | 58

PoE Port LEDs | 59

SFP and SFP+ Port LEDs | 59

Management and Console Port LEDs on the Front Panel | 60

Cooling System and Airflow in an ACX2000 and ACX2100 Router | 60

ACX2000 Power System | 61

ACX2000 and ACX2100 Power Overview | 62

ACX2100 AC Power Specifications | 62

ACX2100 AC Power Cord Specifications | 63

ACX2000 and ACX2100 DC Power Specifications | 65

Site Planning, Preparation, and Specifications

Site Preparation Checklist for ACX2000 and ACX2100 Routers | 68

ACX2000 and ACX2100 Site Guidelines and Requirements | 69

General Site Guidelines | 70

Site Electrical Wiring Guidelines | 70

Clearance Requirements for Airflow and Hardware Maintenance on ACX2000 and ACX2100

Routers | 71

Chassis Physical Specifications for ACX2000 and ACX2100 Routers | 72

ACX2000 and ACX2100 Router Environmental Specifications | 73

ACX2000 and ACX2100 Chassis Grounding Cable and Lug Specifications | 74

Grounding Points Specifications | 74

Grounding Cable Lug Specifications | 75

Grounding Cable Specifications | 76

Cabinet Requirements for ACX2000 and ACX2100 Routers | 76

Rack Requirements for ACX2000 and ACX2100 Routers | 78

ACX2000 and ACX2100 Network Cable and Transceiver Planning | 80

Determining Transceiver Support and Specifications | 80

Calculating Power Budget and Power Margin for Fiber-Optic Cables | 81

How to Calculate Power Budget for Fiber-Optic Cable | 81

How to Calculate Power Margin for Fiber-Optic Cable | 82

Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 83

Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 83

Attenuation and Dispersion in Fiber-Optic Cable | 84

ACX2000 and ACX2100 Alarm, Management, and Clocking Cable Specifications and

Pinouts | 85

Alarm Contact Port Pinouts on the ACX2000 and ACX2100 Router | 85

Management Port Connector Pinout Information for ACX Series Routers | 87

Console or Auxiliary Port Connector Pinout on ACX Series Routers | 88

USB Port Specifications for an ACX Series Router | 89

Clocking Ports Specifications on the ACX2000 and the ACX2100 Router | 89

External Clocking Port Connector Specifications | 90

External Clocking Input Port Specifications | 90

Initial Installation and Configuration

Installing and Connecting an ACX2000 or ACX2100 Router Overview | 93

Unpacking and Mounting the ACX2000 and ACX2100 Routers | 94

Unpacking an ACX2000 or ACX2100 Router | 94

Parts Inventory (Packing List) for an ACX2000 and ACX2100 Router | 95

Installing the ACX2000 or ACX2100 Mounting Brackets | 96

Installing the ACX2000 or ACX2100 Router in the Rack | 97

Connecting the ACX2000 and ACX2100 Routers to Power | 99

Connecting the ACX2000 or ACX2100 Router to Earth Ground | 100

Connecting DC Power Cables to the ACX2000 or ACX2100 Router | 102

Connecting AC Power Cords to the ACX2100 Router | 104

Connecting the ACX2000 and ACX2100 to External Devices | 105

Connecting ACX2000 or ACX2100 Routers to Management Devices | 106

Connecting the Router to a Network for Out-of-Band Management | 106

Connecting the Router to a Management Console or Auxiliary Device | 107

Connecting ACX2000 or ACX2100 Routers to External Clocking Devices | 108

Connecting 1-PPS and 10-MHz Timing Devices to the Router | 108

Connecting a T1 or E1 External Clocking Device to the Router | 109

Connecting ACX2000 or ACX2100 Routers to an External Alarm-Reporting Device | 110

Initially Configuring the ACX2000 or ACX2100 Router | 111

Maintaining Components

Maintaining ACX2000 and ACX2100 Components | 117

Routine Maintenance Procedures for the ACX2000 and ACX2100 Router | 117

Maintaining Cables That Connect to ACX2000 or ACX2100 Network Ports | 117

Maintaining the ACX2000 and ACX2100 Uplink Ports | 118

Removing a Transceiver from the ACX2000 or ACX2100 | 119

Installing a Transceiver in the ACX2000 or ACX2100 | 121

Replacing an ACX2000 or ACX2100 Management Ethernet Cable | 122

Removing an ACX2000 or ACX2100 Management Ethernet Cable | 122

Installing an ACX2000 and ACX2100 Management Ethernet Cable | 123

Replacing an ACX2000 or ACX2100 Console or Auxiliary Cable | 123

Removing an ACX2000 or ACX2100 Console or Auxiliary Cable | 123

Installing an ACX2000 or ACX2100 Console or Auxiliary Cable | 124

Troubleshooting Hardware

Troubleshooting ACX2000 and ACX2100 | 126

Troubleshooting Resources for ACX2000 and ACX2100 Routers | 126

Command-Line Interface | 126

Front Panel LEDs | 126

Monitoring System Log Messages | 127

Alarm Types and Severity Classes on ACX Series Routers | 127

Alarm Types | 128

Alarm Severity Classes | 128

Verifying Active Alarms | 128

Contacting Customer Support and Returning the Chassis or Components

Contacting Customer Support and Returning the Chassis or Components | 131

How to Return a Hardware Component to Juniper Networks, Inc. | 131

Locating the Serial Number on a ACX2000 or ACX2100 Chassis or Component | 132

ACX2000 and ACX2100 Chassis Serial Number Label | 133

Guidelines for Packing Hardware Components for Shipment | 133

Packing the ACX Series Router for Shipment | 134

Safety and Compliance Information

General Safety Guidelines and Warnings | 137

Definitions of Safety Warning Levels | 138

Qualified Personnel Warning | 141

vii

Warning Statement for Norway and Sweden | 142

Installation Instructions Warning | 142

Chassis and Component Lifting Guidelines | 143

Restricted Access Warning | 144

Ramp Warning | 146

Rack-Mounting and Cabinet-Mounting Warnings | 147

Grounded Equipment Warning | 153

Radiation from Open Port Apertures Warning | 154

Laser and LED Safety Guidelines and Warnings | 155

General Laser Safety Guidelines | 155

Class 1 Laser Product Warning | 156

Class 1 LED Product Warning | 157

Laser Beam Warning | 158

Maintenance and Operational Safety Guidelines and Warnings | 158

Battery Handling Warning | 160

Jewelry Removal Warning | 161

Lightning Activity Warning | 163

Operating Temperature Warning | 164

Product Disposal Warning | 166

General Electrical Safety Guidelines and Warnings | 167

Action to Take After an Electrical Accident | 168

Prevention of Electrostatic Discharge Damage | 168

ACX2100 AC Power Electrical Safety Guidelines | 170

AC Power Disconnection Warning | 171

ACX2000 and ACX2100 DC Power Electrical Safety Guidelines | 172

DC Power Copper Conductors Warning | 173

DC Power Disconnection Warning | 174

viii

DC Power Grounding Requirements and Warning | 176

DC Power Wiring Sequence Warning | 178

DC Power Wiring Terminations Warning | 181

Midplane Energy Hazard Warning | 183

Multiple Power Supplies Disconnection Warning | 184

TN Power Warning | 185

Agency Approvals for ACX2000 and ACX2100 Routers | 185

Compliance Statements for NEBS for ACX2000 and ACX2100 Routers | 187

Compliance Statements for EMC Requirements for ACX2000 and ACX2100 Routers | 188

Canada | 188

European Community | 188

Israel | 188

Japan | 189

United States | 189

Compliance Statements for Environmental Requirements | 190

Compliance Statements for Acoustic Noise for ACX2000 and ACX2100 Routers | 190

About the Documentation

IN THIS SECTION

Documentation and Release Notes | ix

Using the Examples in This Manual | ix

Documentation Conventions | xi

Documentation Feedback | xiv

Requesting Technical Support | xiv

Use this guide to install hardware and perform initial software configuration, routine maintenance, and troubleshooting for the ACX2000 and ACX2100 Universal Metro router. After completing the installation and basic configuration procedures covered in this guide, refer to the Junos OS documentation for information about further software configuration.

Documentation and Release Notes

To obtain the most current version of all Juniper Networks®technical documentation, see the product documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.

If the information in the latest release notes differs from the information in the documentation, follow the product Release Notes.

Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts. These books go beyond the technical documentation to explore the nuances of network architecture, deployment, and administration. The current list can be viewed at https://www.juniper.net/books.

Using the Examples in This Manual

If you want to use the examples in this manual, you can use the load merge or the load merge relative command. These commands cause the software to merge the incoming configuration into the current candidate configuration. The example does not become active until you commit the candidate configuration.

If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example is a full example. In this case, use the load merge command.

If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In this case, use the load merge relative command. These procedures are described in the following sections.

Merging a Full Example

To merge a full example, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following configuration to a file and name the file ex-script.conf. Copy the ex-script.conf file to the /var/tmp directory on your routing platform.

system {

scripts {

commit {

file ex-script.xsl;

}

} } interfaces {

fxp0 {

disable; unit 0 {

family inet {

address 10.0.0.1/24;

}

} }

2. Merge the contents of the file into your routing platform configuration by issuing the load merge configuration mode command:

[edit] user@host# load merge /var/tmp/ex-script.conf load complete

Merging a Snippet

To merge a snippet, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the ex-script-snippet.conf file to the /var/tmp directory on your routing platform.

commit {

file ex-script-snippet.xsl; }

2. Move to the hierarchy level that is relevant for this snippet by issuing the following configuration mode command:

[edit] user@host# edit system scripts [edit system scripts]

3. Merge the contents of the file into your routing platform configuration by issuing the load merge relative configuration mode command:

[edit system scripts] user@host# load merge relative /var/tmp/ex-script-snippet.conf load complete

For more information about the load command, see CLI Explorer.

Documentation Conventions

Table 1 on page xii defines notice icons used in this guide.

Table 1: Notice Icons

xii

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Caution

Indicates a situation that might result in loss of data or hardware damage.

Alerts you to the risk of personal injury or death.Warning

Alerts you to the risk of personal injury from a laser.Laser warning

Indicates helpful information.Tip

Alerts you to a recommended use or implementation.Best practice

Table 2 on page xii defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions

ExamplesDescriptionConvention

Fixed-width text like this

Italic text like this

Represents text that you type.Bold text like this

Represents output that appears on the terminal screen.

Introduces or emphasizes important

•

new terms.

Identifies guide names.

•

Identifies RFC and Internet draft

•

titles.

To enter configuration mode, type the configure command:

user@host> configure

user@host> show chassis alarms

No alarms currently active

A policy term is a named structure

•

that defines match conditions and actions.

Junos OS CLI User Guide

•

RFC 1997, BGP Communities

•

Attribute

Table 2: Text and Syntax Conventions (continued)

xiii

ExamplesDescriptionConvention

Italic text like this

Text like this

< > (angle brackets)

| (pipe symbol)

Represents variables (options for which you substitute a value) in commands or configuration statements.

Represents names of configuration statements, commands, files, and directories; configuration hierarchy levels; or labels on routing platform components.

variables.

Indicates a choice between the mutually exclusive keywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity.

Configure the machine’s domain name:

[edit] root@# set system domain-name

domain-name

To configure a stub area, include

•

the stub statement at the [edit protocols ospf area area-id]

hierarchy level.

The console port is labeled

•

CONSOLE.

stub <default-metric metric>;Encloses optional keywords or

broadcast | multicast

(string1 | string2 | string3)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

GUI Conventions

Indicates a comment specified on the same line as the configuration statement to which it applies.

Encloses a variable for which you can substitute one or more values.

Identifies a level in the configuration hierarchy.

Identifies a leaf statement at a configuration hierarchy level.

rsvp { # Required for dynamic MPLS only

community name members [ community-ids ]

[edit] routing-options {

static {

route default {

nexthop address; retain;

}

Table 2: Text and Syntax Conventions (continued)

xiv

ExamplesDescriptionConvention

Bold text like this

> (bold right angle bracket)

Represents graphical user interface (GUI) items you click or select.

Separates levels in a hierarchy of menu selections.

In the Logical Interfaces box, select

•

All Interfaces.

To cancel the configuration, click

•

Cancel.

In the configuration editor hierarchy, select Protocols>Ospf.

Documentation Feedback

We encourage you to provide feedback so that we can improve our documentation. You can use either of the following methods:

Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper

•

Networks TechLibrary site, and do one of the following:

Click the thumbs-up icon if the information on the page was helpful to you.

•

Click the thumbs-down icon if the information on the page was not helpful to you or if you have

•

suggestions for improvement, and use the pop-up form to provide feedback.

E-mail—Send your comments to techpubs-comments@juniper.net. Include the document or topic name,

•

URL or page number, and software version (if applicable).

Requesting Technical Support

Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active Juniper Care or Partner Support Services support contract, or are

covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.

JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User

•

Guide located at https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.

Product warranties—For product warranty information, visit https://www.juniper.net/support/warranty/.

•

JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week,

•

365 days a year.

Self-Help Online Tools and Resources

For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features:

Find CSC offerings: https://www.juniper.net/customers/support/

•

Search for known bugs: https://prsearch.juniper.net/

•

Find product documentation: https://www.juniper.net/documentation/

•

Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/

•

Download the latest versions of software and review release notes:

•

https://www.juniper.net/customers/csc/software/

Search technical bulletins for relevant hardware and software notifications:

•

https://kb.juniper.net/InfoCenter/

Join and participate in the Juniper Networks Community Forum:

•

https://www.juniper.net/company/communities/

Create a service request online: https://myjuniper.juniper.net

•

To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool:

https://entitlementsearch.juniper.net/entitlementsearch/

Creating a Service Request with JTAC

You can create a service request with JTAC on the Web or by telephone.

Visit https://myjuniper.juniper.net.

•

Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).

•

For international or direct-dial options in countries without toll-free numbers, see

https://support.juniper.net/support/requesting-support/.

CHAPTER

Overview

ACX2000 and ACX2100 System Overview | 17

ACX2000 Chassis Components | 47

Cooling System and Airflow in an ACX2000 and ACX2100 Router | 60

ACX2000 Power System | 61

ACX2000 and ACX2100 System Overview

IN THIS SECTION

ACX2000 and ACX2100 Universal Metro Router Overview | 17

ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping | 20

Packet Flow on ACX Series Routers | 24

Protocols and Applications Supported by ACX Series Routers | 26

ACX2000 and ACX2100 Universal Metro Router Overview

IN THIS SECTION

Benefits of the ACX2000 and ACX2100 Routers | 18

ACX2000 Router Description | 18

ACX2100 Router Description | 19

The ACX2000 and ACX2100 Universal Metro Routers are principally designed to provide superior management for rapid provisioning to the access network. The ACX Series routers support rich Gigabit Ethernet and 10-Gigabit Ethernet capabilities for uplink, along with support for legacy interfaces and Gigabit Ethernet interfaces for radio and NodeB connectivity in a compact form factor that is environmentally hardened and passively cooled. Seamless, end-to-end MPLS can be used to address legacy and emerging requirements to provide the foundation for a converged network that utilizes the same mobile backhaul infrastructure for business or residential services.

The ACX Series router is a single-board router with a built-in Routing Engine and one Packet Forwarding Engine. Because there is no switching fabric, the single Packet Forwarding Engine takes care of both ingress and egress packet forwarding:

Routing Engine—Provides Layer 3 routing services and network management.

•

Packet Forwarding Engine—Performs Layer 2 and Layer 3 packet switching, route lookups, and packet

•

forwarding.

The ACX Series router is powered by Junos OS, supporting extensive L2 and L3 features, IP and MPLS with traffic engineering, rich network management, fault management, service monitoring and Operation, Administration, and Maintenance (OAM) capabilities, and an open software development kit (SDK) system that allows providers to customize and integrate operations with their own management systems. For a list of related Junos OS documentation, see https://www.juniper.net/documentation/software/junos/.

As part of the mobile backhaul, the ACX Series router at the cell site and the MX Series router at the aggregation layer provide comprehensive end-to-end Ethernet, MPLS, and OAM features with the one Junos OS running on both platforms.

The compact routers are one rack unit (U; that is, 1.75 in., or 4.45 cm) tall. Several routers can be stacked in a single floor-to-ceiling rack for increased port density per unit of floor space.

The chassis is a rigid sheet metal structure that houses all the other router components. The chassis measures 1.75 in. (4.45 cm) high, 9.4 in. (24 cm) deep, and 17.5 in. (44.5 cm) wide. The outer edges of the mounting brackets extend the width to 19 in. (48 cm) (from the front-mounting brackets to the rear of the chassis). The chassis installs in standard 300-mm deep (or larger) enclosed cabinets, 19-in. equipment racks, or telco open-frame racks.

Benefits of the ACX2000 and ACX2100 Routers

Improved operational efficiency with zero-touch deployment (ZTD)—The ACX Series routers support

•

a zero-touch deployment (ZTD) model that significantly reduces the time for any new equipment installation and provisioning, resulting in improved operational efficiency.

Installation flexibility with an environmentally hardened design—Most ACX Series routers are temperature

•

hardened and support passive cooling for outdoor deployments in extreme weather conditions.

ACX2000 Router Description

The ACX2000 router contains sixteen T1/E1 ports, six Gigabit Ethernet ports, and two PoE ports. The ACX2000 router also supports installation of two Gigabit Ethernet SFP transceivers and two 10-Gigabit Ethernet SFP+ transceivers.

The ACX2000 router has one “pseudo” Flexible PIC Concentrator (FPC 0), and four “pseudo” PICs (PIC 0 through 3).

Figure 1 on page 19 shows the front view of the ACX2000 router. Figure 2 on page 19 shows the rear

view.

Figure 1: Front View of the ACX2000 Router

g006402

ACX2000

0/0/12

0/0/13

0/0/14

0/0/4

0/0/5

0/0/6

0/0/7

0/0/15

0/0/8

0/0/9

0/0/10

0/0/11

0/1/0

0/1/1

0/1/2

0/1/3POE

0/1/4

0/1/5

0/1/6

0/1/7POE

EXTREFCLK IN

g006403

g017844

g006403

Figure 2: Rear View of the ACX2000 Router

ACX2100 Router Description

The ACX2100 router contains sixteen T1/E1 ports, and four Gigabit Ethernet ports. The ACX2100 router also contains two ports for installing Gigabit Ethernet SFP transceivers and two ports for installing 10-Gigabit Ethernet SFP+ transceivers. The ports labeled COMBO PORTS provide an additional four copper Gigabit Ethernet ports or four Gigabit Ethernet SFP ports. You can use only one set of combination ports at a time.

The ACX2100 router has two “pseudo” Flexible PIC Concentrators (FPC 0 and FPC 1), and four “pseudo” PICs (PIC 0 through 3).

Figure 3 on page 19 shows the front view of the ACX2100 router. Figure 4 on page 19 shows the rear

view.

Figure 3: Front View of the ACX2100 Router

Figure 4: Rear View of the ACX2100 Router

ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping

IN THIS SECTION

ACX2000 Hardware and CLI Terminology Mapping | 20

ACX2100 Hardware and CLI Terminology Mapping | 22

ACX2000 Hardware and CLI Terminology Mapping

Table 3 on page 20 describes the hardware terms used in ACX2000 router documentation and the

corresponding terms used in the Junos OS command line interface (CLI). Figure 5 on page 22 shows the port locations of the interfaces.

Table 3: CLI Equivalents of Terms Used in Documentation for ACX2000 Routers

Hardware Item (as displayed in the CLI)

FPC (n)

Description (as displayed in the CLI)

Abbreviated name of the Flexible PIC Concentrator (FPC)

Value (as displayed in the CLI)

Value of n is always 0.

Router chassis–ACX2000Chassis

The router does not have actual FPCs. In this case, FPC refers to the router itself.

Additional InformationItemin Documentation

“Chassis Physical Specifications for ACX2000 and ACX2100 Routers” on page 72

Interface Naming Conventions

Used in the Junos OS Operational

Commands

Table 3: CLI Equivalents of Terms Used in Documentation for ACX2000 Routers (continued)

Hardware Item (as displayed in the CLI)

Description (as displayed in the CLI)

Value (as displayed in the CLI)

Additional InformationItemin Documentation

PIC (n)

Abbreviated name of the Physical Interface Card (PIC)

6x 1GE (RJ-45)

•

2x 1GE (POE

•

RJ-45)

n is a value in the range of 0–3.

PIC 016x T1/E1 (RJ-48)

PIC 1One of the following:

PIC 22x 1GE (SFP)

PIC 32x 10GE (SFP+)

The router does not have actual PIC devices; see entries for PIC 0 through PIC 3 for the equivalent item on the router.

Built-in network ports on the front panel of the router

Built-in uplink ports on the front panel of the router

Interface Naming Conventions

Used in the Junos OS Operational

Commands

“ACX2000 and ACX2100 Universal Metro Router Overview” on page 17

Xcvr (n)

supply (n)

Abbreviated name of the transceiver

Built-in power supplyPower

equivalent to the number of the port in which the transceiver is installed.

always 0.

Optical transceiversn is a value

DC power supplyValue of n is

“Uplink Ports on ACX2000 and ACX2100 Routers” on page 50

“ACX2000 and ACX2100 Power Overview” on page 62

Table 3: CLI Equivalents of Terms Used in Documentation for ACX2000 Routers (continued)

ACX2000

MGMT

SYS 0 1

CONSOLE/AUX

ALARM

1PPS

10MHz

IN OUT

T1/E1

0/0/4

0/0/12

0/0/5

0/0/13

0/0/6

0/0/14

0/0/7

0/0/15

0/0/0

0/0/8

0/0/1

0/0/9

0/0/2

0/0/10

0/0/3

0/0/11

0/1/0

0/1/4

0/1/1

0/1/5

0/1/2

0/1/6

0/1/3POE

0/1/7POE

0/2/0

0/2/1 0/3/0 0/3/1

g006414

EXTREF CLKIN

FPC 0, PIC 2 GE 0/2/0-0/2/1

FPC 0, PIC 0 T1/E1 0/0/0-0/0/15

FPC 0, PIC 1 GE 0/1/0-0/1/7

FPC 0, PIC 3 XE 0/3/0-0/3/1

Hardware Item (as displayed in the CLI)

Description (as displayed in the CLI)

Value (as displayed in the CLI)

Additional InformationItemin Documentation

Fan

Fan–Fan

“Cooling System and Airflow in an ACX2000 and ACX2100

NOTE: ACX2000

Router” on page 60

routers are fanless models.

Figure 5: ACX2000 Interface Port Mapping

ACX2100 Hardware and CLI Terminology Mapping

Table 4 on page 22 describes the hardware terms used in ACX2100 router documentation and the

corresponding terms used in the Junos OS command line interface (CLI). Figure 6 on page 24 shows the port locations of the interfaces.

Table 4: CLI Equivalents of Terms Used in Documentation for ACX2100 Routers

Hardware

Value (as displayed in the CLI)

n is a value in the range of 0–1.

Router chassis–ACX2100Chassis

The router does not have actual FPCs. In this case, FPC refers to the router itself.

Item (as displayed in the CLI)

FPC (n)

Description (as displayed in the CLI)

Abbreviated name of the Flexible PIC Concentrator (FPC)

Additional InformationItemin Documentation

“Chassis Physical Specifications for ACX2000 and ACX2100 Routers” on page 72

Interface Naming Conventions

Used in the Junos OS Operational

Commands

Table 4: CLI Equivalents of Terms Used in Documentation for ACX2100 Routers (continued)

Hardware Item (as displayed in the CLI)

Description (as displayed in the CLI)

Value (as displayed in the CLI)

Additional InformationItemin Documentation

PIC (n)

Abbreviated name of the Physical Interface Card (PIC)

4x 1GE (RJ-45)

•

4x 1GE (SFP)

•

n is a value in the range of 0–3.

PIC 0 on FPC 016x T1/E1 (RJ-48)

PIC 0 on FPC 14x 1GE (RJ-45)

PIC 1 on FPC 1One of the following:

PIC 2 on FPC 12x 1GE (SFP)

The router does not have actual PIC devices; see entries for PIC 0 through PIC 3 for the equivalent item on the router.

Built-in network ports on the front panel of the router

Built-in uplink ports on the front panel of the router

Interface Naming Conventions

Used in the Junos OS Operational

Commands

“ACX2000 and ACX2100 Universal Metro Router Overview” on page 17

Xcvr (n)

Power supply (n)

Abbreviated name of the transceiver

Built-in power supply

PIC 3 on FPC 12x 10GE (SFP+)

equivalent to the number of the port in which the transceiver is installed.

always 0.

Built-in uplink ports on the front panel of the router

Optical transceiversn is a value

AC or DC power supplyValue of n is

“ACX2000 and ACX2100 Universal Metro Router Overview” on page 17

“Uplink Ports on ACX2000 and ACX2100 Routers” on page 50

“ACX2000 and ACX2100 Power Overview” on page 62

Table 4: CLI Equivalents of Terms Used in Documentation for ACX2100 Routers (continued)

g017849

ACX2100

MGMT CONSOLE/AUX

SYS

0 1

EXTREF CLKIN

ALARM

OUTIN IN OUT

0/0/8

0/0/0

0/0/9

0/0/1

0/0/10

0/0/2

0/0/11

0/0/3

0/0/12

0/0/4

0/0/13

0/0/5

0/0/6

0/0/14

0/0/7

0/0/15

1/0/0

1/0/2

1/0/1

1/1/11/1/0

1/0/3 1/1/2GE1/1/3

COMBOPORTS XE

1/3/0

1/3/1

T1/E1

1PPS 10MHz

1/1/0 1/1/1

1/2/0

1/1/2 1/1/3 1/2/1

FPC 0, PIC 0 T1/E1 0/0/0-0/0/15

FPC 1, PIC 0 GE 1/0/0-1/0/3

FPC 1, PIC 1 GE 1/1/0-1/1/3

FPC 1, PIC 2 GE 1/2/0-1/2/1

FPC 1, PIC 3 XE 1/3/0-1/3/1

Incoming packet

Ingress classification

In order of decreasing precedence:

MF classification (DFW) Fixed classification BA classification

Queuing Egress rewrite

Outgoing packet

g006408

Buffering Scheduling

Hardware Item (as displayed in the CLI)

Description (as displayed in the CLI)

Value (as displayed in the CLI)

Additional InformationItemin Documentation

Fan

Fan–Fan

“Cooling System and Airflow in an ACX2000 and ACX2100

NOTE: ACX2100

Router” on page 60

routers are fanless models.

Figure 6: ACX2100 Interface Port Mapping

Packet Flow on ACX Series Routers

The class-of-service (CoS) architecture for ACX Series routers is in concept similar to that for MX Series routers. The general architecture for ACX Series routers is shown in Figure 7 on page 24.

Figure 7: ACX Series Router Packet Forwarding and Data Flow

Based on the model, ACX Series routers contain a built-in Routing Engine and Packet Forwarding Engine and can contain both T1/E1 and Gigabit Ethernet Ports.

The Packet Forwarding Engine has one or two “pseudo” Flexible PIC Concentrators. Because there is no switching fabric, the single Packet Forwarding Engine takes care of both ingress and egress packet forwarding.

Fixed classification places all packets in the same forwarding class, or the usual multifield (MF) or behavior

g006428

Rate limiting

BA and fixed classification

Forwarding class and packet loss priority

MF classification

Policing can overwrite forwarding class and packet loss priority

Forwarding class and packet loss priority determine rewrite value

Scheduling and shaping

Scheduling and shaping Forwarding class Qn + packet loss priority

WRED

aggregate (BA) classifications can be used to treat packets differently. BA classification with firewall filters can be used for classification based on IP precedence, DSCP, IEEE, or other bits in the frame or packet header.

However, the ACX Series routers can also employ multiple BA classifiers on the same physical interface. The physical interfaces do not have to employ the same type of BA classifier. For example, a single physical interface can use classifiers based on IP precedence as well as IEEE 802.1p. If the CoS bits of interest are on the inner VLAN tag of a dual-tagged VLAN interface, the classifier can examine either the inner or outer bits. (By default, the classification is done based on the outer VLAN tag.)

Eight queues per egress port support scheduling using the weighted deficit round- robin (WDRR) mechanism, a form of round-robin queue servicing. The supported priority levels are strict-high and default (low). The ACX Series router architecture supports both weighted random early detect (WRED) and weighted tail drop (WTD).

All CoS features are supported at line rate.

The packet pipeline through an ACX Series router is shown in Figure 8 on page 25. Note that the rate limiting is done with an integrated architecture along with all other CoS functions. Scheduling and shaping are supported on the output side.

Figure 8: ACX Series Router Packet Handling

Protocols and Applications Supported by ACX Series Routers

Table 5 on page 26 contains the first Junos OS Release support for protocols and applications on ACX

Series routers. A dash indicates that the protocol or application is not supported.

NOTE:

The [edit logical-systems logical-system-name] hierarchy level is not supported on ACX Series

•

routers.

The ACX Series routers does not support per-family maximum transmission unit (MTU)

•

configuration. The MTU applied to family inet gets applied to other families as well, even though it can be configured though CLI and visible in show interface extensive output. The only way to use higher MTU for a family is to manipulate the MTU, apply at interface or family inet levels, and let it calculate for each family automatically. MTU values are not limited to 1500 but can range between 256 to 9216.

For more information, see the Knowledge Base (KB) article KB28179 at:

https://kb.juniper.net/InfoCenter/index?page=content&id=KB28179.

Table 5: Protocols and Applications Supported by ACX Series Routers

Protocol or Application

Interface and Encapsulation Types

12.3x51

-D10

––––––Ethernet interfaces—40G

10G

only)

12.2R212.212.2R212.2Ethernet interfaces—1G,

12.3X54 –D15

15.1X54 –D20

–D20

ACX5448ACX500ACX5096ACX5048ACX4000ACX2200ACX2100ACX2000ACX1100ACX1000

18.2R112.3X54 –D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R1–15.1X54

––––––12.2R212.2–12.2ATM interfaces (IMA

––––––12.2R212.2–12.2E1 interfaces

––––––12.2R212.2–12.2T1 interfaces

Table 5: Protocols and Applications Supported by ACX Series Routers (continued)

Protocol or Application

ACX5448ACX500ACX5096ACX5048ACX4000ACX2200ACX2100ACX2000ACX1100ACX1000

interfaces (SAToP, CESoP)

Layer 3

-12.2R212.2–12.2Circuit emulation

-D10

–––––SONET/SDH interfaces

-D10 (requires a MIC)

12.2R212.212.2R212.2Static routes

12.2R212.212.2R212.2OSPF

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

––––12.3x51

18.2R112.3X54

12.3X54 –D25 (Outdoor)

12.2R212.212.2R212.2IS-IS

12.3X54 –D15

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

Table 5: Protocols and Applications Supported by ACX Series Routers (continued)

Protocol or Application

ACX5448ACX500ACX5096ACX5048ACX4000ACX2200ACX2100ACX2000ACX1100ACX1000

Protocol (ICMP)

Protocol (ARP)

12.2R212.212.2R212.2BGP

12.2R212.212.2R212.2Internet Control Message

12.2R212.212.2R212.2Address Resolution

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

Detection (BFD) protocol

Configuration Protocol (DHCP)

12.2R212.212.2R212.2Bidirectional Forwarding

12.2R212.212.2R212.2Dynamic Host

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

Table 5: Protocols and Applications Supported by ACX Series Routers (continued)

Protocol or Application

ACX5448ACX500ACX5096ACX5048ACX4000ACX2200ACX2100ACX2000ACX1100ACX1000

(OSPF, IS-IS)

unit (MTU) range (256 to

9192)

12.2R212.212.2R212.2IP fast reroute (FRR)

12.2R212.212.2R212.2Maximum transmission

12.3R112.3R112.3R112.3R1Layer 3 VPNs

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

MPLS, VPLS, VPNs

12.2R212.212.2R212.2RSVP

12.2R212.212.2R212.2LDP (targeted and direct)

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

Table 5: Protocols and Applications Supported by ACX Series Routers (continued)

Protocol or Application

ACX5448ACX500ACX5096ACX5048ACX4000ACX2200ACX2100ACX2000ACX1100ACX1000

path (LSP)

12.2R212.212.2R212.2Static label-switched

12.2R212.212.2R212.2FRR

12.2R212.212.2R212.2Traffic engineering

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

Edge to Edge (PWE3 [signaled])

12.2R212.212.2R212.2E-LINE

12.2R212.2–12.2Pseudowire Emulation

12.3X54 –D15

12.3x51

-D10

12.3x51

-D10

15.1X54 –D20

–D20

–D20 (Indoor)

12.3X54 –D25 (Outdoor)

18.2R112.3X54

18.2R1–15.1X54

+ 160 hidden pages

Juniper ACX2000, ACX2100 User Manual

Table of Contents

About the Documentation

Documentation and Release Notes

Using the Examples in This Manual

Merging a Full Example

Merging a Snippet

Documentation Conventions

Documentation Feedback

Requesting Technical Support

Self-Help Online Tools and Resources

Creating a Service Request with JTAC

Overview

ACX2000 and ACX2100 System Overview

ACX2000 and ACX2100 Universal Metro Router Overview

Benefits of the ACX2000 and ACX2100 Routers

ACX2000 Router Description

ACX2100 Router Description

ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping

ACX2000 Hardware and CLI Terminology Mapping

ACX2100 Hardware and CLI Terminology Mapping

Packet Flow on ACX Series Routers

Protocols and Applications Supported by ACX Series Routers