Overview:
Changing market dynamics have intensified the challenge
of accommodating growth
with traditional products and
architectures. Juniper’s secure and
automated multicloud solution
helps cloud-based networks quickly
react to these evolving conditions,
accelerating service delivery with
world-class products and innovative
architectural components. PTX
Series Packet Transport Routers
with custom ExpressPlus silicon
are an integral part of this solution,
delivering a massively scalable and
efficient core architecture across
space- and power-constrained
service provider and enterprise
networks, reducing TCO with
innovative, highly flexible, highperformance platforms that are
easy to deploy.
Product Description
Juniper Networks® PTX Series Packet Transport Routers transform the core network
with physical and virtual innovations that deliver unprecedented scale at a low cost.
Three fixed-configuration platforms are available: the PTX1000 Packet Transport
Router, the industry’s first 2 U packet transport routing device; the PTX10001
Packet Transport Router, the industry’s first 1 U packet transport device optimized
for cost-optimized transit routing, the PTX10002 Packet Transport Router, a secondgeneration device that doubles the density of the PTX1000 with Juniper Networks ExpressPlus™ silicon in addition to the PTX10003, the industry’s first 3U 400-GbE
enabled packet transport routing device. These packet transport routers give cloud
and communication providers the freedom to develop and deliver new virtualized
services anywhere in the network. They can also create an elastic architecture with
precise traffic control without compromising the service experience.
The Evolving Landscape
New traffic dynamics such as mobility, video, and cloud-based services are
transforming traditional network patterns and topologies. Stratified, statically
designed, and manually operated networks must evolve to support the constantly
growing volumes of traffic quickly and economically. Many operators have seen their
profits stagnate and TCO grow under the burden that these growing traffic volumes
are imposing. Service providers need to become more agile in order to optimize their
existing network resources, shorten planning cycles, and remove rigid network layers.
Operators are facing the following challenges under the current environment:
- Static scale: The cloud and communication providers’ backbone handles the
full weight of network traffic. Therefore, it is paramount that the core network
be able to grow organically along with traffic to meet escalating demands.
400-GbE, inline MACsec, Silicon, system, and SDN innovations for the core
empower service providers to scale faster than the traffic in an elegant, elastic,
redundant package—without requiring forklift upgrades
- Static architecture: Virtualized services and the explosion of cloud-based
applications are creating increasingly unpredictable traffic patterns. To handle
this unpredictability, service providers need a dynamic, scale-out architecture
across all layers to create programmable, traffic-optimized networks that
support any service, anywhere.
- Power costs: For cloud and communication providers, the operational cost
of transmitting a packet through the core is less than the cost of the power
required to move that packet. In fact, projections suggest that over a few
short years, the total power draw will exceed the cost of deploying the entire
network infrastructure. Efficient power utilization by the core router requires a
holistic ground-up engineering approach.
- Facility limitations: Service providers cannot grow their
facilities exponentially forever. They need innovations
that provide a low-touch deployment model optimized
around space availability, facility power requirements, and
floor weight thresholds. Transport-oriented central office
locations have the added burden of meeting European
Telecommunications Standards Institute (ETSI) standard
depth. Any transit router innovation must operate within
these constraints.
In order to address these challenges, cloud and communication providers need an innovative, scalable core router that satisfies three defining principles: performance, deployability, and SDN programmability. The PTX1000, PTX10001-36MR, PTX10002, and PTX10003 fixed-configuration packet transport routers provide the foundation for a scale-out core backbone architecture, ensuring a consistent user experience across geographies. The PTX1000, PTX10001-36MR, PTX10002, and PTX10003 meet all existing traditional core requirements, easily fitting into cloud and communication provider networks that require transit-focused IP/MPLS applications such as Internet peering, scale-out metro and backbone topologies, and label-switching router (LSR) optimized deployments.
Architecture and Key Components:
The PTX1000, PTX10001-36MR, PTX10002, and PTX10003 fixed-configuration packet transport routers bring physical and virtual innovation to the cloud and service provider core networks, addressing concerns about operational expenditures while scaling organically to keep pace with growing traffic demands with the following features:
- Core routing: The PTX1000, PTX10001-36MR, PTX10002, and PTX10003 employ a massively scalable yet compact 1, 2, or 3 U form factor with secure connectivity and high flexibility.
- Peering: The PTX Series fixed platforms are perfect for scale-out peering in space- and power-constrained environments with full traffic visibility and L3 services.
- LSR: The PTX Series fixed platforms provide 2.88 Tbps to 16 Tbps aggregate capacity for multi-plane core networks as an LSR router. They can also be positioned as an LSR fabric node in spine-leaf architectures for increased scale and reduced blast radius.
- CDN Gateway: The compact PTX Series offers high routing scale in a 1, 2, or 3 U fixed form factor for full traffic statistics visibility and deep buffers.
- Data Center Interconnect (DCI): The PTX10001-36MR and PTX10003 offer secure inline MACsec with no compromise in throughput or latency, and an extended range enabled by 400GbE ZR / ZR+.
Innovations in Silicon
Physical innovations at the core silicon level enable the PTX Series fixed-configuration routers to reduce OpEx and accommodate scale-out architectures with smooth migration paths as traffic patterns change.
ExpressPlus and Express-Based Silicon
The PTX1000 and PTX10002 are powered by ExpressPlus silicon, delivering predictable IP/MPLS packet performance and functionality. The PTX10003 is powered by functionally equivalent ExpressPlus Silicon to support high-density 100/200/400GbE interfaces and inline MACsec with no performance penalty while delivering the same IP/MPLS functionality. ExpressPlus silicon eliminates the complex sawtooth packet profile found in elaborate, over-engineered network processing units (NPUs) deployed in other core routers. This delivers the peering scale required to match expanding traffic demands.
These devices build upon the Juniper Networks Junos® Express silicon concepts of low consistent latency and wire-rate packet performance for both IP traffic and MPLS transport, without sacrificing the optimized system power profile. These concepts are incorporated into the PTX Series design along with full IP functionality, preserving the spirit of the original Junos Express chipset. The ExpressPlus silicon is the first purpose-built telecommunications silicon to engineer a 3D memory architecture into the base design for more than 1.6 billion filter operations per second, dynamic table memory allocation for mammoth IP routing scale, and enormous power efficiency gains. The PTX10003 supports inline MACsec on all interfaces using 10/40/100GbE.
Triton Silicon
The PTX10001-36MR is powered by the highly scalable, next-generation ASIC in the Express silicon family, Juniper Triton silicon—the industry’s first inline MACsec for 400GbE chips that supports universal multirate QSFP56-DD. Juniper Triton silicon delivers consistently low latency, 8m counters, 256 AES MACsec encryption supported on all ports, and wire-rate packet performance for IP traffic without sacrificing the optimized system power profile. Preserving the spirit of the Junos Express silicon family, Juniper Triton silicon is the first purpose-built telecommunications silicon to incorporate a 3D memory architecture into the base design, offering the industry’s highest packet performance per gigabit in the fewest rack units. It also provides dynamic table memory allocation for massive IP routing scale while delivering tremendous power efficiency gains at 0.14 Watts/Gig.
The ability to address a provider’s core networking requirements—scale, operational flexibility, and SDN control—begins with the silicon. With the PTX Series fixed-configuration routers, operators can now deploy a core architecture with SDN control. Combining Juniper Networks NorthStar Controller with a robust full-featured Internet backbone router, and a regional IP/MPLS core router with integrated 100GbE coherent transport for superior performance, operators can tune their network infrastructure through proactive monitoring and what-if planning capabilities. The NorthStar Controller dynamically creates explicit routing paths using a global view based on user-defined constraints to create a fully autonomous operation.
Scale is one of the guiding design principles for the PTX Series routers, allowing network operators to smoothly handle increased traffic demands. The PTX Series fixed-configuration routers simplify network engineering challenges with predictable system latency, improving the overall service experience by delivering best-in-class resiliency to help providers meet strict customer service-level agreements (SLAs).
Operational efficiency is another design attribute for the PTX Series routers, focusing on power, space, and weight—fundamental concerns that affect network operators’ operational budgets. Juniper has designed the PTX Series to fit the requirements of current and future data center facilities.
SDN programmability brings virtual innovations to the service provider core, while the NorthStar Controller offers an open, standards-based solution that optimizes both the IP layer and the transport layer with precise SDN control, allowing network operators to fully automate and scale their operations with ease.
PTX1000, PTX10002, and PTX10003 Fixed-Configuration Packet Transport Routers
PTX1000
The PTX1000, with its rich IP/MPLS feature set, lets service providers organically distribute peering points throughout the network without sacrificing performance and deployability—the main contributors to eroding TCO for service providers when peering. The PTX1000 expands the applications scope that the PTX Series architecture addresses, enabling service providers to implement a distributed core architecture for interconnecting growing cloud services. Service providers can distribute peering points to match traffic demand with an optimized core router without sacrificing performance or deployability. The PTX1000 is a first-generation fixed-configuration core router, providing up to 3 million FIB and 10+ million routing information base (RIB) in a 2 U footprint, making it easily deployable in space-constrained Internet exchange locations, remote central offices, and embedded peering points anywhere in the network, including cloud-hosted services.
The PTX1000 operates at 2.88 Tbps in a fixed core router configuration and supports flexible interface configuration options, including 288 10GbE ports via a quad small form-factor pluggable plus transceiver (QSFP+) breakout, 72 40GbE ports via QSFP+, and 24 100GbE ports via QSFP28.
PTX10001-36MR
The PTX10001-36MR features a compact, 1 U form factor that is easy to deploy in space- and power-constrained Internet exchange locations, remote central offices, and embedded peering points throughout the network, including cloud- hosted services.
The PTX10001-36MR is particularly suited for power-constrained environments, providing unprecedented power efficiency of 0.14 watts/Gbps. It offers up to 2 million FIB, deep buffers, and integrated 100GbE and 400GbE MACsec capabilities. The PTX10001-36MR operates at 9.6 Tbps in a fixed core router configuration with 36 multi-rate ports—24 400GbE (QSFP56-DD) ports and 12 100GbE (QSFP28) ports to facilitate the migration from 100GbE to 400GbE deployments.
The PTX10001-36MR features flexible interface configuration options with universal multi-rate QSFP-DD for 100GbE/400GbE to support 120 10GbE ports with QSFP+ breakout, 60 100GbE ports with QSFP28-DD (24x2) and QSFP28 (12), 108 100GbE ports with QSFP56-DD breakout (24x4) and QSFP28 (12), and 24 400GbE ports with QSFP56-DD.
PTX10002
The PTX10002 is a second-generation PTX Series fixed-configuration core router featuring a compact, 2 U form factor that is easy to deploy in space-constrained Internet exchange locations, remote central offices, and embedded peering points throughout the network, including cloud-hosted services.
The PTX10002 operates at 6 Tbps in a fixed core router configuration. It supports flexible interface configuration options, offering 60 physical quad small form-factor pluggable 28 (QSFP28) 100GbE ports, 60 QSFP+ 40GbE ports, and 192 10GbE ports via QSFP+ breakout cables.
PTX10003
The PTX10003 is a fixed-configuration core router featuring a compact, 3 U form factor that is easy to deploy in space-constrained Internet exchange locations, remote central offices, and embedded peering points throughout the network, including cloud-hosted services. It offers up to 4 million FIB, deep buffers, and integrated 100GbE MACsec capabilities.
The PTX10003 uniquely addresses power-constrained environments by providing unprecedented power efficiency of 0.2 watts/Gbps. Two versions of the PTX10003 are available, supporting 8 Tbps and 16 Tbps respectively in a 3 U footprint.
Operating in a fixed core router configuration, the 8 Tbps model features flexible interface configuration options with universal multi-rate QSFP-DD for 100GbE/400GbE to support 160 (QSFP+) 10GbE ports, 80 (QSFP28) 100GbE ports, 32 (QSFP28-DD) 200GbE ports, and 16 (QSFP56-DD) 400GbE ports.
The 16 Tbps model also offers universal multi-rate QSFP-DD for 100GbE/400GbE to support 320 (QSFP+) 10GbE ports, 160 (QSFP28) 100GbE ports, 64 (QSFP28-DD) 200GbE ports, and 32 (QSFP56-DD) 400GbE ports.
Features and Benefits:
Performance is one of the guiding design principles for the PTX Series Packet Transport Routers. This focus empowers cloud and service providers with superior scale to match increased traffic levels and network engineering challenges with predictable system latency to improve the overall service experience, deliver best-in-class resiliency, and ensure that services meet strict customer SLAs. Deployability is the other guiding design principle for the PTX Series routers, focusing on power, space, and weight—fundamental concerns that impact service providers’ operational budget with respect to growing traffic.
Infinite programmability with automation and telemetry brings virtual innovations to the cloud and service provider core, while the NorthStar Controller is an open, standards-based solution that optimizes both the IP layer and the transport layer with precise SDN control, allowing service providers to automate and scale operations with efficiency, simplicity, and security.
One Junos Experience delivers operational consistency and uniformity across PTX Series platforms and solutions. The most modern OS on the market, Junos Evolved, is designed from the ground up for reliability, resiliency, velocity, and integration simplicity.
Fixed-Configuration PTX Series Features and Benefits
| Feature |
Feature Description |
Benefit |
| System capacity |
The PTX1000 scales to 3 Tbps in a single chassis, breaking out into 288 10GbE, 72 40GbE, and 24 100GbE interfaces.
The PTX10001-36MR scales to 9.6 Tbps in a single chassis, featuring flexible interface configuration options with universal multi-rate QSFP-DD for 100GbE/400GbE to support 120 10GbE ports with QSFP+ breakout, 60 100GbE ports with QSFP28-DD (24x2) and QSFP28 (12), 108 100GbE ports with QSFP56-DD breakout (24x4) and QSFP28 (12), and 24 400GbE ports with QSFP56-DD.
The PTX10002 scales to 6 Tbps in a single chassis, breaking out into 192 10GbE, 60 40GbE, and 60 100GbE interfaces.
The PTX10003 8 Tbps model scales to 8 Tbps is a single chassis, breaking out into 160 10GbE, 80 100GbE, 32 200GbE, and 16 400GbE interfaces.
The PTX10003 16 Tbps model scales to 16 Tbps in a single chassis, breaking out into 320 10GbE, 160 100GbE, 64 200GbE, and 32 400GbE interfaces. |
The PTX1000, PTX10001-36MR, PTX10002, and PTX10003 give cloud and service providers the performance and scalability needed to outpace growing traffic demands. |
| High availability hardware |
The PTX1000, PTX10001-36MR, PTX10002 and PTX10003 are built with hardware redundancy for cooling, power supplies, and forwarding. |
HA is critical for service providers to maintain an always-on
infrastructure base and meet stringent SLAs across the core. |
| Packet performance |
The PTX1000 and PTX10002 include groundbreaking ExpressPlus silicon, empowering them with unparalleled packet processing for both full IP functionality and MPLS transport, leveraging a revolutionary 3D memory architecture. The PTX10003 uses a newer version of ExpressPlus silicon that delivers inline MACsec on all ports and dense 100/400GbE. The PTX10001-36MR uses the next generation of Express, Triton silicon, that delivers 100/400GbE inline MACsec on all ports for dense 400GbE architectures. |
Exceptional packet processing capabilities help alleviate the challenge of scaling the network as traffic levels increase while optimizing IP/MPLS transit functionality around superior performance and elegant deployability. |
| Ultra-compact 1 U, 2 U and 3 U form factor |
With cutting-edge innovation in power and cooling technology, the PTX fixed-configuration core routers provide compact, power-optimized scale and efficiency. The PTX1000 provides 2.88 Tbps of capacity in a 2 U form factor; the PTX10001-36MR provides 9.6 Tbps in a 1 U form factor; the PTX10002 provides 6 Tbps of capacity in a 2 U form factor; the PTX10003 provides up to 16 Tbps of capacity in a 3 U form factor. |
Space efficiency is a critical requirement for peering Internet
exchange points, peering collocations, central offices, and
regional networks, especially in emerging markets. |
| Security |
The PTX Series Packet Transport routers use a combination of hardware-based mechanisms like MACsec and software-based features like firewall filters and DDoS to provide scalable security. 100GbE and 400GbE inline MACsec is supported on all ports with no compromise in latency. |
Inline data plane MACsec security with no throughput or latency penalties in addition to control plane security with DDoS. |
