PTX10016 System Overview

Benefits of the PTX10016 Router

• System capacity—The PTX10016 has a 21-RU form factor and provides 230.4 Tbps per chassis.

• Full-scale IP and MPLS routing—The 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 the 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.

• Nondisruptive software upgrades—The Junos OS running 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 2 illustrates the components visible from the front of the chassis, Figure 3 illustrates the components that are visible from the rear of the chassis, and Figure 4 illustrates the components that are internal to the chassis.

Some chassis ship with an enhanced power bus to 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).

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

Routing and Control Board

The RCB (see Figure 5) 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 configurations have a single RCB. The redundant configurations have two RCBs. Each RCB contains Precision Time Protocol (PTP) ports and four Media Access Control Security (MACsec) capable ports. See PTX10016 Components and Configurations.

The PTX10016 supports the following RCB models:

• JNP10K-RE0

• JNP10K-RE1

• JNP10K-RE1-LT

• JNP10K-RE1-128G

Line Cards

The PTX10016 features 16 horizontal line card slots and supports a maximum line rate of 14.4 Tbps for each line card. The line cards combine a Packet Forwarding Engine and Ethernet interfaces enclosed in a single assembly. The line cards are FRUs that you can install in the line card slots labeled 0 through 15 (top to bottom) on the front of the router chassis.

The PTX10016 with JNP10016-SF SIBs installed in it supports the following line cards:

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

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

• PTX10K-LC1104, a 6-port coherent dense wavelength-division multiplexing (DWDM) line card with 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 the line card either as 100GbE interfaces or as 40GbE interfaces. The line card also supports MACsec security features.

The PTX10016 with JNP10016-SF3 SIBs installed in it supports the following line cards:

• PTX10K-LC1201-36CD, a 36-port line card that has 36 QSFP56-DD ports that support 400-Gbps speed. You can channelize the ports to operate at 200-Gbps, 100-Gbps, 50-Gbps, 25-Gbps, or 10-Gbps speeds by using breakout cables.

• PTX10K-LC1202-36MR, a 36-port line card that has 32 QSFP28 ports that support 100-Gbps speed and 4 QSFP56-DD ports that support 400-Gbps speed.

See Figure 6 for an example of a PTX10016 line card.

Switch Interface Boards

Switch Interface Boards (SIBs) create the switch fabric for the PTX10016 router. The PTX10016 supports two models of SIBs:

• The JNP10016-SF SIB supports Junos OS and has a switching capacity of 14.4 Tbps in one direction.
• The JNP10016-SF3 SIB supports Junos OS Evolved Release 21.2R2 and later, and has a forwarding capacity of 45.9 Tbps in one direction.

You must install the SIBs between the line cards and the fan trays inside the chassis. Each SIB has 16 connectors that match to a line card slot, eliminating the need for a backplane. When six JNP10016-SF SIBs are installed, the PTX10016 has a routing capacity of 96 Tbps. When six JNP10016-SF3 SIBs are installed, the PTX10016 has a routing capacity of 565 Tbps. See PTX10016 Switch Interface Board Description.

Each SIB model has a set of unique connectors to mate the line cards and the RCB to the switch fabric. Some system components are also designed to operate with a specific switch fabric. See Table 1 for the components that each switch fabric supports.

Table 1: PTX10016 SIB Specifications

Specification	JNP10016-SF	JNP10016-SF3
Operating system	Junos OS Release 17.4R1 and later	Junos OS Evolved Release 21.2R2 and later
RCB	JNP10K-RE0 JNP10K-RE1 JNP10K-RE1-LT JNP10K-RE1-128G	JNP10K-RE1-E JNP10K-RE1-E128 JNP10K-RE1-ELT
Fan tray and fan tray controller	JNP10016-FAN with JNP10016-FAN-CTRL or JNP10016-FAN2 with JNP10016-FTC2	JNP10016-FAN2 with JNP10016-FTC2
Power supply	JNP10K-PWR-AC JNP10K-PWR-DC JNP10K-PWR-AC2 JNP10K-PWR-DC2	JNP10K-PWR-AC2 JNP10K-PWR-DC2
Supported line cards	PTX10K-LC1101 PTX10K-LC1102 PTX10K-LC1104 PTX10K-LC1105 QFX10000-60S-6Q	PTX10K-LC1201-36CD PTX10K-LC1202-36MR

Cooling System

The cooling system in a PTX10016 consists of two hot-removable and hot-insertable FRU fan trays (see Figure 9 and Figure 10) and two fan tray controllers (see Figure 11 and Figure 12). Each JNP10016-FAN fan tray contains 21 fans and each JNP10016-FAN2 fan tray contains 42 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.

Power Supplies

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

• JNP10K-PWR-AC

• JNP10K-PWR-AC2

• JNP10K–PWR-DC

• 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 13 through Figure 16.

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

Table 2: PTX10016 Power Supply Overview

Power Supply Model	Input Type	Wattage	Minimum Junos OS Release
JNP10K-PWR AC	AC only	2700 W	17.4R1
JNP10K-PWR-AC2	AC, HVAC, or HVDC	5000 W, single feed; 5500 W, dual feed	18.2R1
JNP10K-PWR DC	DC only	2500 W	17.4R1
JNP10K-PWR-DC2	DC only	2750 W, single feed; 5500 W, dual feed	18.2R1

CAUTION:

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 do a 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.

Software

The PTX10016 runs on Junos OS, which provides Layer 3 routing services. The same Junos OS code base that runs on the PTX10016 routers also runs on all Juniper Networks^® EX Series Ethernet Switches, Juniper Networks^® MX Series 5G Universal Routing Platforms, and Juniper Networks^®SRX Series Firewalls. PTX10016 routers with the JNP10016-SF3 SIB installed in them come preinstalled with Junos OS Evolved Release 21.2R2 and later.