Juniper PTX Metro Aggregation Solution Brief

• Next-generation Express 5 silicon
  Drawing on Juniper’s groundbreaking Express 5 silicon, new 800G-capable PTX routers deliver industry-leading port density, flexibility, and features. This enables you to easily meet demanding metro aggregation requirements (Figure 1).
• Future-proof design
  Service and cloud providers can seamlessly scale up and out as needed, using the overlay technologies, such as EVPN, traffic engineering protocols, and coherent or non-coherent optics, they prefer. And they can continually, cost-effectively address changing metro bandwidth and interconnect requirements as their network evolves.
• Sustainable, versatile, high-performance at scale
  New Express 5-based Juniper PTX routers are available in two form factors:

• PTX10002-36QDD fixed platforms with 36 ports of 800G
• PTX10000 modular chassis with slots for 4-, 8-, and 16-line cards

Together, they provide a flexible, highly scalable solution for the full range of metro aggregation applications. That includes backhauling residential broadband, cable, and “any-G” mobile traffic; new and traditional business services, including EVPN- VXLAN overlays; and distributed telco applications like disaggregated virtual RAN (vRAN) workloads and edge AI.

• Comprehensive support for metro aggregation
  PTX provides the flexibility to continually, cost-effectively meet changing requirements as metro networks evolve. Operators can mix and match coherent and non-coherent optics as needed in the same platform, delivering up to 800G of throughput across all ports simultaneously.
  
  Whether deploying a PTX10002 fixed platform at a smaller site (supporting 36x800G, 72x400G, and 288x100G) or using a modular PTX10000 platform with 4, 8, and 16 slot capacity for larger aggregation nodes, operators are ready for the future. Whenever they want to move up to an 800G interface, upstream or downstream, they can.

Operators can use Juniper PTX to aggregate traffic from multiple broadband network gateway (BNG) and business Ethernet platforms (upper left). All residential and business traffic gets stitched to the fabric over EVPN-VXLAN. This allows the operator to readily scale out BNGs as business and residential subscriber scales grow.

The same architecture also supports disaggregated 5G vRAN workloads (upper right). Here, edge platforms handle user plane, control plane and policy functions for traffic coming from mobile towers—whether those functions are deployed in the same central office (CO) or distributed across multiple sites.

Meanwhile, to improve performance for business and residential cloud services, this architecture incorporates localized handoffs to cloud and content provider peering points within the metro footprint. Operators can pass subscriber traffic over the GiLAN/ N6 interface—or even support business internet for large customers who want full routing capability.

Multiple service providers are already using previous-generation (Express 4-based) PTX platforms in aggregation roles. Now, leading operators are deploying new PTX routers with Express 5 silicon to support these next-generation aggregation fabrics in metro networks.

Bandwidth requirements for both consumers and businesses will explode in the coming years, and metro networks are positioned to feel the pressure first. Leading service and cloud providers know they can’t afford to wait. With our new PTX platforms and Express 5 silicon, Juniper is ready to help build a more scalable, flexible, future-proof metro network.

• Real-world SRv6
  While other vendors talk about SRv6 in future terms, Juniper supports it today. Our Express 5 silicon delivers 33% better performance for SRv6 Layer-2/Layer-3 customer routing than any other solution on the market.
• Automation
  When operators use Juniper PTX in multiple roles—metro aggregation, core and peering, data center interconnect—they can apply the same consistent automation across all of them. They can use Paragon Automation, homegrown tools or open management protocols and APIs, using standards-based data models to automate operations from Day 0 planning through Day 2 operations and beyond.
• Packet-optical convergence
  Juniper PTX enables transformative IPoDWDM architectures, opening new possibilities for more efficient network designs. PTX routers support a wide range of coherent and non-coherent optical transceivers from Juniper and others. Operators can continually connect new locations over longer distances without the need for external transponders, enabling up to 54% power savings and 55% lower carbon emissions.

“Moving from 100G to 400G routing with Juniper results in saving over 80% in network costs.”

Steven Schecter
Senior Director of Network Architecture, Akamai

New PTX routers with Express 5 silicon unleash 800GE (or double density 400GE) scalability. With up to 28.8 Terabits of throughput per line card or fixed chassis, they provide industry-leading radix and density with deep packet buffers and very low latency.

With Express 5 silicon, PTX routers support diverse network technologies, including EVPN and SRv6. Operators gain far more flexibility to aggregate metro mobile, residential, and business traffic over converged transport using the overlays, underlays, and protocols they choose.

PTX routers use features like redundant power supplies, hot- swappable components, and graceful restart to ensure that the network stays operational, even in the event of component failures.

PTX routers come equipped with advanced features like Hierarchical QoS (HQoS), traffic engineering, and streaming telemetry that provide valuable insights to optimize network performance.

With their innovative system design, advanced power management features, and Express 5 silicon, PTX routers set the standard for environmentally-conscious networking. The PTX10002-36QDD, for example, delivers double the capacity of previous-generation routers in the same footprint, with a 75% improvement in Watts/Gbps.

The table below details capabilities of Juniper PTX and ACX routing platforms that can be deployed in metro networks. Choosing the best solution depends on the specific design and requirements of your architecture. For example, PTX modular platforms are well-suited for aggregation applications that require control plane and data plane redundancy. Alternately, PTX fixed platforms can provide a scalable, cost-effective solution for adding throughput and density in locations that don’t require that redundancy.

At Juniper Networks, we are dedicated to dramatically simplifying network operations and driving superior experiences for end users. Our solutions deliver industry-leading insight, automation, security, and AI to drive real business results. We believe that powering connections will bring us closer together while empowering us all to solve the world’s greatest challenges of well-being, sustainability, and equality.

To learn more, please visit our PTX Series Routers product page

For technical data sheets, guides and documentation, visit https://www.juniper.net/us/en/products/routers.html