Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


PTX10016 System Overview

The Juniper Networks PTX10016 line of packet transport routers bring physical and virtual innovations to the service provider core network. These next-generation routers help network operators achieve their business goals while effectively handling current and future traffic demands.

PTX10016 Packet Transport Router Description

The Juniper Networks PTX10016 Packet Transport Router provides cloud and data center operators with the highest levels of scale and throughput. The PTX10016 can provide 48 terabits per second (Tbps) of throughput and 32 Bpps of forwarding capacity in a 21-rack-unit (21-U) chassis. PTX10016 has 16 slots for line cards that allow for a smooth transition from 10-Gigabit Ethernet and 40-Gigabit Ethernet networks to 100-Gigabit Ethernet high-performance networks. Table 1 shows the supported port densities.

Table 1: PTX10016 Port Densities

Port Density


10-Gigabit Ethernet


40-Gigabit Ethernet


100-Gigabit Ethernet


The PTX10016 can be deployed in various network designs and fabrics, including:

  • Label-Switched core routing

  • IP core

  • Peering

The PTX10016 is available in both base and redundant configurations for both AC and DC operations. All systems feature front-to-back airflow, which is also known as airflow out (AFO).

This topic covers:

Benefits of the PTX10016 Router

  • System capacity—The PTX10016 packet transport router has a 21 RU form factor and supports 48 Tbps per chassis or 3 Tbps per slot, with support for up to 480 100-Gigabit Ethernet interfaces, 576 40-Gigabit Ethernet ports, or 2304 10-Gigabit Ethernet ports in a single chassis.

  • Full-scale IP and MPLS routing—PTX10016 delivers the distributed peering scale of 2.9 million forwarding information bases (FIBs) and 30 million routing information bases (RIBs) (also known as forwarding tables, and routing tables, respectively), 3000 OSPF adjacencies, and 4000 BGP sessions that are required to match expanding traffic demands.

  • Source Packet Routing in Networking (SPRING)—SPRING on PTX10016 provides additional flexibility per packet source. SPRING provides network path and node protection to support MPLS fast reroute (FRR) mechanisms, enhanced network programmability, Operation, Administration, and Maintenance (OAM) functionality, simplified network signaling, load balancing, and traffic engineering functions.

  • Always-on infrastructure base—The PTX10016 is engineered with full hardware redundancy for cooling, power, switch fabric, and host subsystems—Routing and Control Boards (RCBs)—allowing service providers to meet stringent service-level agreements across the core.

  • Nondisruptive software upgrades—The Junos operating system (Junos OS) on the PTX10016 supports high availability (HA) features such as graceful Routing Engine switchover (GRES), and nonstop active routing (NSR) providing software upgrades and changes without disrupting network traffic.

Chassis Description

The PTX10016 is 21 U tall. Two PTX10016 chassis can fit in a standard 42-U rack with adequate cooling and power. All key PTX10016 components are field-replaceable units (FRUs). Figure 1 illustrates the components visible from the front of the chassis, Figure 2 illustrates the components that are visible from the rear of the chassis, and Figure 3 illustrates the components that are internal to the chassis.

Figure 1: PTX10016 Chassis FrontPTX10016 Chassis Front
Routing and Control Boards
Installation holes for the front panel
Status LED panel
Line card slots 0-15 (numbered top to bottom)

Some chassis ship with an enhanced power bus to support future-proof the chassis beyond the current generation of line cards. You can determine which chassis you have by markings on the status panel, (see PTX10016 Status Panel).

Figure 2: PTX10016 Chassis RearPTX10016 Chassis Rear
AC or DC power supplies
ESD point
Fan trays with redundant fans
Protective earthing terminal
Figure 3: PTX10016 Chassis Internal ComponentsPTX10016 Chassis Internal Components
Fan tray controllers
Switch Interface Boards (SIBs)

See PTX10016 Chassis Physical Specifications and PTX10016 Field-Replaceable Units.

Routing and Control Board

The Routing and Control Board (RCB) (see Figure 4) contains a Routing Engine and is responsible for the system management and system control in the PTX10016. See PTX10016 Routing and Control Board Description. RCBs are FRUs that are installed in the front of the chassis in the slots labeled CB0 and CB1. The base configuration has a single RCB. The fully redundant configuration has two RCBs. RCB contains Precision Time Protocol (PTP) ports and four Media Access Control Security (MACsec) capable ports. See PTX10016 Components and Configurations.

Figure 4: PTX10016 Routing and Control BoardPTX10016 Routing and Control Board

The supported models of RCB are:

  • JNP10K-RE0

  • JNP10K-RE1

  • JNP10K-RE1-LT

  • JNP10K-RE1-128G

Line Cards

The PTX10016 features 16 horizontal line card slots and supports line rate for each line card. The line cards combine a Packet Forwarding Engine and Ethernet interfaces enclosed in a single assembly. The line card architecture for PTX10016 routers is based on a number of identical, independent PFE slices, each with 500-Gbps full-duplex throughput. Line cards are FRUs that can be installed in the line card slots labeled 0 through 15 (top to bottom) on the front of the router chassis. All line cards are hot-removable and hot-insertable.

The PTX10016 supports the following line card models:

  • PTX10K-LC1101, a 30-port 100-Gigabit or 40-Gigabit Ethernet quad small form-factor 28 (QSFP28) line card. By default, the interfaces are created with 100-Gbps port speed. Using the CLI, you can set the speed to 40-Gbps that can be used as either a native 40-gigabit interface or four independent 10-gigabit interfaces using a breakout cable. With breakout cables, the line card supports a maximum of 96 logical 10-Gigabit Ethernet interfaces.

  • PTX10K-LC1102, a 36-port 40-Gigabit Ethernet line card that supports quad small form-factor plus (QSFP+) transceivers. Twelve out of the 36 ports on this line card also support the 100-Gigabit Ethernet QSFP28 transceivers. You can configure each of the QSFP+ ports as either a native 40-Gigabit Ethernet interface or channelize the port as four 10-Gigabit Ethernet interfaces by using a breakout cable. When the 40 Gigabit Ethernet port is channelized, the line card supports a maximum of 144 logical 10-Gigabit Ethernet ports.

  • PTX10K-LC1104, a 6-port coherent dense wavelength-division multiplexing (DWDM) line card with Media Access Control Security (MACsec). The line card features built-in optics that support flexible rate modulation at 100-Gbps, 150-Gbps, and 200-Gbps speeds.

  • PTX10K-LC1105, a 30-port flexible configuration line card that supports QSFP+, QSFP28, QSFP28-DD, QSFP56, and QSFP-DD transceivers. You can configure either as 100-Gigabit Ethernet interfaces or as40-Gigabit Ethernet interfaces. The PTX10K-LC1105 line card supports MACsec security features.

See Figure 5 for an example of a PTX10016 line card.

Figure 5: PTX10K-LC1101 Line CardPTX10K-LC1101 Line Card

Switch Interface Boards

Five Switch Interface Boards (SIBs) provide the necessary switch fabric to a base configuration PTX10016 (see Figure 6). A sixth SIB is available in the redundant configuration to provide n+1 redundancy. SIBs are installed between the line cards and the fan trays inside the chassis. Each PTX10016 SIB has 16 connectors that match to a line card slot, eliminating the need for a backplane. When all six SIBs are installed, the PTX10016 has a net switching capacity of 96 Tbps. See PTX10016 Switch Interface Board Description.

Figure 6: PTX10016 SIBPTX10016 SIB

Cooling System

The cooling system in a PTX10016 consists of two hot-removable and hot-insertable FRU fan trays (see Figure 7) and two fan tray controllers (see Figure 8). Each fan tray contains 21 fans. The fan trays install vertically on the rear of the chassis and provide front-to-back chassis cooling. See PTX10016 Cooling System and Airflow.

Figure 7: Fan Tray JNP10016-FANFan Tray JNP10016-FAN
Figure 8: Fan Tray Controller JNP10016-FAN-CTRLFan Tray Controller JNP10016-FAN-CTRL

Power Supplies

PTX10016 routers support AC, DC, high-voltage alternating current (HVAC) and high-voltage direct current (HVDC) by offering the following power supplies:


  • JNP10K-PWR-AC2


  • JNP10K-PWR-DC2

Power supplies for the PTX10016 router are fully redundant, load-sharing, and hot-removable and hot-insertable FRUs Each PTX10016 base configuration has five power supplies; redundant configurations hold the maximum of ten AC, HVAC, DC, or HVDC power supplies. Each power supply has an internal fan for cooling. You can install the power supplies in any slot. See Table 2 and Figure 9 through Figure 12.

Table 2 provides an overview of the differences among the power supplies.

Table 2: Power Supply Overview

Power Supply Model

Input Type


Minimum Junos OS Release


AC only

2700 W

Junos OS 17.4R1



5000 W, single feed; 5500 W, dual feed

Junos OS 18.2R1


DC only

2500 W

Junos OS 17.4R1


DC only

2750 W, single feed; 5500 W, dual feed

Junos OS 18.2R1


Do not mix power supply models in the same chassis in a running environment. DC and HVDC power supplies can coexist in the same chassis when you hot swap of DC for an HVDC model. The system provides 2n source redundancy and n+1 power supply redundancy. If one power source fails, the power supply switches to the alternate source.

Figure 9: JNP10K-PWR-AC Power SupplyJNP10K-PWR-AC Power Supply
Figure 10: JNP10K-PWR-AC2 Power SupplyJNP10K-PWR-AC2 Power Supply
Figure 11: JNP10K-PWR-DC Power SupplyJNP10K-PWR-DC Power Supply
Figure 12: JNP10K-PWR-DC2 Power SupplyJNP10K-PWR-DC2 Power Supply


The Juniper Networks PTX10016 line of Packet Transport Routers run Junos OS, which provides Layer 3 routing services. The same Junos OS code base that runs on the PTX10016 line of routers also runs on all Juniper Networks EX Series Ethernet Switches, M Series Multiservice Edge Routers, MX Series 5G universal Routing Platforms, and SRX Series Services Gateways.

PTX10016 Components and Configurations

Table 3 lists the four hardware configurations for a PTX10016 modular chassis—base (AC version), and redundant (AC and DC versions)—and the components included in each configuration.

Table 3: PTX10016 Hardware Configurations

Router Configuration

Configuration Components

Base AC configuration


  • Chassis

  • One Routing and Control Board (RCB)

  • Two fan tray controllers (JNP10016-FAN-CTRL or JNP10016-FTC2)

  • Two fan trays (JNP10016-FAN and JNP10016-FAN2)

  • Five AC power supplies (JNP10K-PWR-AC or JNP10K-PWR-AC2)

  • Five power supply cover panels

  • Five Switch Interface Boards (SIBs)

  • One SIB cover panel

  • Sixteen line card cover panels

Base DC configuration


  • Chassis

  • One RCB

  • Two fan tray controllers (JNP10016-FAN-CTRL or JNP10016-FTC2)

  • Two fan trays (JNP10016-FAN and JNP10016-FAN2)

  • Five DC power supplies (JNP10K-PWR-DC, JNP10K-PWR-DC2, or JNP10K-PWR-AC2)

  • Five power supply covers

  • Five SIBs

  • One SIB cover

  • Sixteen line card covers

Redundant AC configuration


  • Chassis

  • Two RCBs

  • Two fan tray controllers (JNP10016-FAN-CTRL or JNP10016-FTC2)

  • Two fan trays (JNP10016-FAN and JNP10016-FAN2)

  • Ten AC power supplies (JNP10K-PWR-AC or JNP10K-PWR-AC2)

  • Six SIBs

  • Sixteen line card covers

Redundant DC configuration


  • Chassis

  • Two RCBs

  • Two fan tray controllers (JNP10016-FAN-CTRL or JNP10016-FTC2)

  • Two fan trays (JNP10016-FAN and JNP10016-FAN2)

  • Ten DC power supplies (JNP10K-PWR-DC, JNP10K-PWR-DC2, or JNP10K-PWR-AC2)

  • Six SIBs

  • Sixteen line card covers


You can install up to 16 line cards (any combination of line cards) in the PTX10016.


Line cards and the cable management system are not part of the base or redundant configurations. You must order them separately.


If you want to purchase additional power supplies (AC, DC, or HVAC or HVDC), SIBs, or RCBs for your router configuration, you must order them separately.

PTX10016 Component Redundancy

The PTX10016 router is designed so that no single point of failure can cause the entire system to fail. The following major hardware components in the redundant configuration provide redundancy:

  • Routing and Control Board (RCB)—RCB consolidates the Routing Engine function with control plane function in a single unit. The PTX10016 routers can have one or two RCBs. When two RCBs are installed, one functions as the primary and the other functions as the backup. If the primary RCB (or either of its components) fails, the backup can take over as the primary. See PTX10016 Routing and Control Board Description.

  • Switch Interface Boards (SIBs)—The PTX10016 routers have six SIB slots. Five SIBs are required for base operation and the sixth SIB provides n+1 redundancy. All six SIBs are active and can sustain full throughput rate. The fabric plane can tolerate one SIB failure without any loss of performance. See the PTX10016 Switch Interface Board Description.

  • Power supplies—The PTX10016 routers require three power supplies for minimum operation (two RCBs, two fan trays, six SIBs and no line cards). Additional power supplies provide n+1 redundancy for the system. AC, DC, HVAC, and HVDC systems tolerate a single power supply to fail without system interruption. If one power supply fails in a fully redundant system, the other power supplies can provide full power to the PTX10016 indefinitely.

    The PTX10016 routers also support power source redundancy. Two sets of lugs are provided for the JNP10K-PWR-AC cables, four sets of lugs are provided for the JNP10K-PWR-DC2 cables, and two AC power cords are provided for each JNP10K-PWR-AC power supply.

  • Cooling system—The fan trays have redundant fans, which are controlled by the fan tray controller. If one of the fans fails, the host subsystem increases the speed of the remaining fans to provide sufficient cooling for the router indefinitely. See PTX10016 Cooling System and Airflow.

PTX10016 Hardware and CLI Terminology Mapping

This topic describes the hardware terms used in PTX10016 router documentation and the corresponding terms used in the Junos OS CLI. See Table 4.

Table 4: CLI Equivalents of Terms Used in Documentation for PTX10016 Routers

Hardware Item (CLI)

Description (CLI)

Value (CLI)

Item In Documentation

Additional Information



Router chassis

PTX10016 Chassis Physical Specifications

Fan tray

JNP10016-FAN or JNP10016-FAN2

Fan Tray 0|1 Fan n

n is a value in the range of 0–10 for the JNP10016-FAN, or JNP10016-FAN2. The value corresponds to the individual fan number in the fan tray.

Fan tray

PTX10016 Cooling System and Airflow

FPC (n)

Abbreviated name of the Flexible PIC Concentrator (FPC)

On PTX10016, an FPC is equivalent to a line card.

n is a value in the range of 0–15 for the PTX10016. The value corresponds to the line-card slot number in which the line card is installed.

Line card (The router does not have actual FPCs—the line cards are the FPC equivalents on the router.)

Understanding Interface Naming Conventions

PIC (n)

Value of n is always 0.

Understanding Interface Naming Conventions

PSM (n)

Abbreviation for power supply module

One of the following:


  • JNP10K-PWR-AC2


  • JNP10K-PWR-DC2

n is a value in the range of 0–5. The value corresponds to the power-supply slot number.

AC, DC, HVAC, or HVDC power supply

One of the following:


RE (n)

n is a value in the range of 0–1.

Multiple line items appear in the CLI if more than one RCB is installed in the chassis.


PTX10016 Routing and Control Board Description

SIB (n)

This field indicates:

  • State of the fabric plane:

    • Active

    • Spare

    • Check state

  • Status of the Packet Forwarding Engine in each fabric plane:

    • Links OK

    • Error

n is a value in the range of 0–5.

Fabric plane

show chassis fabric sibs

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

PTX10016 Optical Transceiver and Cable Support