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 core router that satisfies three
defining principles: performance, deployability, and SDN
programmability. The PTX1000, PTX10001, 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, PTX10002 and PTX10003 meet all
existing traditional core requirements, easily fitting into cloud
and communication provider networks that require transitfocused IP/MPLS applications such as Internet peering, scaleout metro and backbone topologies, and label-switching router
(LSR) optimized deployments.
The PTX10001, which offers MACsec on all 10GbE, 40GbE,
and 100GbE interfaces, is designed for low-buffer, lowforwarding information base (FIB), low-power, and high-density
LSR core applications.
Architecture and Key Components:
The PTX1000, PTX10001, PTX10002 and PTX10003 fixedconfiguration packet transport routers bring physical and virtual
innovation to the service provider core network, addressing
concerns about operational expenditures while scaling
organically to keep pace with growing traffic demands with the
following features:
- Core routing: The PTX1000, PTX10001, PTX10002, and
PTX10003 employ a massively scalable (3+ Tbps/U) yet
compact 1, 2, or 3 U form factor.
- Data Center Interconnect (DCI): The routers offer inline
MACsec, with no compromise in throughput or latency.
- Peering: The PTX1000 and PTX10002 provide up to 3
million FIB and 20+ million routing information base (RIB)
in a 2 U footprint. The PTX10003 provides the same
peering capability with dense 100/200/400GbE and inline
MACsec in a 3 U footprint.
- LSR P functions: The PTX10001 provides scalable, costoptimized, and secure P functions.
Physical innovations at the core silicon level enable the PTX
Series fixed-configuration routers to reduce OpEx. Powered
by ExpressPlus silicon, 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. While the PTX10001 has inbuilt MACsec, it
does not have external memory. The PTX10003 supports inline
MACsec on all 10/100/100/400GbE interfaces.
PTX1000, PTX10001, 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
in a compact, 2 U form factor, 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
The PTX10001 is a MACsec-enabled LSR core router featuring
a compact, 1 U form factor that is easy to deploy in spaceconstrained backbone environments. Operating at 3.6 Tbps
in a fixed core router configuration, the PTX10001 supports
flexible interface options, offering 36 physical QSFP28 100GbE
ports, 36 QSFP+ 40GbE ports, and 144 10GbE ports via QSFP+
breakout cables. MACsec is enabled on all interfaces.
PTX10002
The PTX10002 is a second-generation PTX Series fixedconfiguration 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 spaceconstrained Internet exchange locations, remote central
offices, and embedded peering points throughout the network,
including cloud-hosted services. 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/FlexE 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/FlexE 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 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 servicelevel agreements (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 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
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 scales up to 3.6 Tbps in a single chassis,
breaking out into 144 10GbE, 36 40GbE, and 36 100GbE
interfaces.
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, PTX10002, and PTX10003 give
cloud and service providers the performance and scalability
needed to outpace growing traffic demands. |
| High availability hardware |
The PTX1000, PTX10001, 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 PTX10001 uses Express-based silicon, one of the
industry’s highest density, lowest latency, and lowest buffer
solutions. The PTX10003 uses a newer version of ExpressPlus
silicon that delivers inline MACsec on all ports and dense
100/400GbE. |
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. The PTX10001 is
tailored for LSR core router applications, with support for more
than 128,000 LSP. |
| Ultra-compact 2 U form factor |
With cutting-edge innovation in power and cooling technology,
the PTX10002 is the only fixed-configuration core router
that provides 6 Tbps of capacity in a 2 U form factor. The
PTX1000 provides 2.88 Tbps of capacity in a 2 U form factor.
The PTX10001 is the first 1 U LSR router with MACsec built
in. 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 softwarebased features like firewall filters and DDoS to provide scalable
security |
Inline data plane MACsec security with no throughput or
latency penalties in addition to control plane security with
DDoS. |
