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OCX1100 System Overview

 

OCX1100 Switches Hardware Overview

Juniper Networks OCX1100 Open Networking Switches are designed for large-scale cloud-based data centers, backed by the industry recognized Open Compute Project (OCP) Foundation. OCX1100 switches, which combine the cloud optimized OCP-based hardware design with the Juniper Networks Junos operating system (Junos OS), are high-density, top-of-rack, high-performance fixed-configuration switches for large-scale IP fabric deployments.

Benefits of the OCX1100 Switch

Cloud-optimized solution—The OCX1100 switch offers a cost effective, open source switching solution for large-scale cloud deployments that value the simplicity and reliability of the carrier-class Junos OS operating system.

Open architecture—The OCX1100 switch is based on OCP-submitted design specifications, allowing customers to leverage the open source hardware design community.

Software

OCX1100 switches run Junos OS, which provides Layer 3 switching, routing, and security services. The same Junos OS code base that runs on OCX1100 switches also runs on all Juniper Networks EX Series, QFX Series, and OCX Series switches; M Series, MX Series, PTX Series, and T Series routers; and SRX Series Services Gateways. For information about installing software for your switch, see System Management and Monitoring User Guide.

Hardware

The OCX1100-48SX is a top-of-rack switch that has 48 10-Gigabit Ethernet small form-factor pluggable plus transceiver (SFP+) ports and 6 built-in 40-Gigabit Ethernet quad small form-factor pluggable plus transceiver (QSFP+) ports. Each SFP+ port operates as a 10-Gigabit Ethernet port and each QSFP+ port operates at native 40-Gigabit speed. The OCX1100-48SX switch provides full duplex throughput of 1.44 Tbps.

Figure 1 shows the front panel of an OCX1100-48SX switch.

Figure 1: Front Panel of an OCX1100-48SX Switch
Front Panel of an OCX1100-48SX
Switch

Figure 2 shows the rear panel of an OCX1100-48SX switch with power supplies and fan modules installed.

Figure 2: Rear Panel of an OCX1100-48SX Switch
Rear Panel of an OCX1100-48SX
Switch

To provide carrier-class reliability, OCX1100-48SX switches include:

  • Two fully redundant, load-sharing power supplies (either AC or DC) that are hot-insertable and hot-removable field-replaceable units (FRUs).

  • Four redundant fan modules that are field-replaceable units.

  • Junos OS with its modular design that enables failed system processes to gracefully restart.

Power Supplies

OCX1100 switches support AC or DC power supplies with different airflow directions, depending on the model. Power supplies for OCX1100 switches are fully redundant and load-sharing, and they are hot-removable and hot-insertable FRUs. The OCX1100-48SX switches are shipped with two power supplies preinstalled in the rear panel of the switches.

Each power supply has a label—AIR IN (AFI) or AIR OUT (AFO)—on the faceplate of the power supply that indicates the direction of airflow. AIR IN (AFI) labels indicate back-to-front airflow while AIR OUT (AFO) labels indicate front-to-back airflow.

Power supplies are installed in the two power supply slots located on the rear panel of the switch.

Table 1 lists the AC and DC power supplies used in OCX1100 switches and the direction of airflow in them.

Table 1: Airflow Direction in Power Supply for OCX1100 Switches

Power Supply Rating

Label on Power Supply

Direction of Airflow

460 W AC

AIR IN (AFI)

Back-to-front—that is, air intake to cool the chassis is through the vents on the rear panel of the chassis and hot air exhausts through the vents on the front panel of the chassis.

460 W AC

AIR OUT (AFO)

Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.

800 W DC

AIR IN (AFI)

Back-to-front—that is, air intake to cool the chassis is through the vents on the rear panel of the chassis and hot air exhausts through the vents on the front panel of the chassis.

800 W DC

AIR OUT (AFO)

Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.

For more information, see Cooling System and Airflow in an OCX1100 Switches.

Caution

Do not install:

  • AC and DC power supplies in the same chassis.

  • AC power supplies in DC switch models or DC power supplies in AC switch models.

  • Power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

  • Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

Fan Modules

The fan modules in OCX1100 switches are hot-insertable and hot-removable field-replaceable units (FRUs). OCX1100-48SX switches are shipped with four fan modules preinstalled in the rear panel of the switch.

The fan modules are available in two models that have different airflow directions—back-to-front airflow, indicated by the label AIR IN (AFI) and front-to-back airflow, indicated by the label AIR OUT (AFO). See Cooling System and Airflow in an OCX1100 Switches.

Caution

Do not mix:

  • Fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

  • Fan modules and power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

Fan modules are installed in the four fan module slots located on the rear panel of the switch.

OCX1100-48SX Switch Components

Figure 3 shows the components on the front panel of an OCX1100-48SX switch.

Figure 3: Components on the Front Panel of an OCX1100-48SX Switch
Components
on the Front Panel of an OCX1100-48SX Switch
  1
Management port
  4
Mini-USB console port
  2
RESET button
  5
QSFP+ ports
  3
SFP+ ports
  6
Console port


Figure 4 shows the components on the rear panel of an OCX1100-48SX switch (with two AC power supplies and four fan modules installed).

Figure 4: Components on the Rear Panel of an OCX1100-48SX Switch
Components
on the Rear Panel of an OCX1100-48SX Switch
  1
Fan modules
  2
Power supplies

OCX1100 Switch Models

Table 2 lists the components shipped with OCX1100-48SX switch models.

Table 2: OCX1100-48SX Switch Models, Shipped Components, and Supported Junos OS Release

Model Number

Number and Types of Ports

Power Supply

Fan Modules

First Junos OS Release

OCX1100-48SX-AFO

48 10-Gigabit Ethernet SFP+ ports and 6 40-Gigabit Ethernet QSFP+ ports

Two 460 W AC power supplies with the AIR OUT (AFO) label.

Four fan modules; each with an AIR OUT (AFO) label.

14.1X53-D20

OCX1100-48SX-AFI

48 10-Gigabit Ethernet SFP+ ports and 6 40-Gigabit Ethernet QSFP+ ports

Two 460 W AC power supplies with the AIR IN (AFI) label.

Four fan modules; each with an AIR IN (AFI) label.

14.1X53-D20

OCX1100-48SX-D-AFO

48 10-Gigabit Ethernet SFP+ ports and 6 40-Gigabit Ethernet QSFP+ ports

Two 800 W DC power supplies with the AIR OUT (AFO) label.

Four fan modules; each with an AIR OUT (AFO) label.

14.1X53-D20

OCX1100-48SX-D-AFI

48 10-Gigabit Ethernet SFP+ ports and 6 40-Gigabit Ethernet QSFP+ ports

Two 800 W DC power supplies with the AIR IN (AFI) label.

Four fan modules; each with an AIR IN (AFI) label.

14.1X53-D20

Note

Transceivers are not part of the shipping configuration. If you want to purchase transceivers, additional power supplies, or additional fan modules for your switch, you must order them separately.

OCX1100 Switch Hardware and CLI Terminology Mapping

This topic describes the hardware terms used in OCX1100-48SX switch documentation and the corresponding terms used in the Junos OS CLI. See Table 3.

Table 3: CLI Equivalents of Terms Used in the Documentation for OCX1100-48SX Switches

Hardware Item (CLI)

Description (CLI)

Value

Item In Documentation

Additional Information

Chassis

One of the following:

  • OCX1100-48SX-AFO

  • OCX1100-48SX-AFI

  • OCX1100-48SX-D-AFO

  • OCX1100-48SX-D-AFI

Switch chassis

Chassis Physical Specifications for OCX1100 Switches

Routing Engine (n)

One of the following:

  • OCX1100-48SX-AFO

  • OCX1100-48SX-AFI

  • OCX1100-48SX-D-AFO

  • OCX1100-48SX-D-AFI

Value of n is always 0.

RE refers to the switch itself.

FPC (n)

Abbreviated name of the Flexible PIC Concentrator (FPC)

One of the following:

  • OCX1100-48SX-AFO

  • OCX1100-48SX-AFI

  • OCX1100-48SX-D-AFO

  • OCX1100-48SX-D-AFI

Value of n is always 0.

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

PIC (n)

Abbreviated name of the Physical Interface Card (PIC)

Value of n is always 0.

 

48x10G-6x40G

PIC 0

PIC 0 stands for the built-in SFP+ and QSFP+ ports. In the CLI output, the SFP+ ports are numbered 1 through 48 and the QSFP+ ports are numbered 49 through 54.

OCX1100 Switches Hardware Overview

Xcvr (n)

Abbreviated name of the transceiver

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

Optical transceivers

Pluggable Transceivers Supported on OCX1100 Switches

Power supply (n)

One of the following:

  • OCX-460W-X-AC-AFI

  • OCX-460W-X-AC-AFO

  • OCX-800W-X-DC-AFI

  • OCX-800W-X-DC-AFO

Value of n is always 0.

AC power supply or DC power supply

Caution: Do not install:

  • AC and DC power supplies in the same chassis.

  • AC power supplies in DC switch models or DC power supplies in AC switch models.

  • Power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

  • Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

Fan tray

One of the following:

  • OCX-FAN-X-AFI

  • OCX-FAN-X-AFO

n has a value 0, 1, 2, or 3 corresponding to the fan module slot number.

Fan module

Cooling System and Airflow in an OCX1100 Switches

Caution: Do not mix:

  • Fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

  • Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.