HPE Networking Data Center Scale Across with PTX & Customer On Ramp with MX

The growth of distributed inference, AI agents, and multisite AI factories is transforming the WAN from basic connectivity into a critical extension of the AI infrastructure. Learn how HPE Juniper Networking’s PTX platforms provide high-capacity, efficient interconnection across AI clusters and sites, while the programmable MX portfolio gives enterprises and service providers a scalable, secure on-ramp connecting customers, applications, and edge environments to AI resources. At Networking Field Day 41, Pradeep Chalicheemala, who leads PTX product management in HPE’s routing business unit, took the discussion beyond the data center.

Chalicheemala used a typical neocloud network to show how data moves through the WAN. Data first arrives from enterprises, telco and edge sites, and autonomous vehicles, and he noted that about 30% of enterprise data is already AI-generated. It is then replicated across geographically dispersed clusters, which also exchange model checkpoints during distributed training. Increasingly, training jobs span sites, and HPE ran an internal training job across clusters 500 kilometers apart. He listed the WAN requirements as low power and cost per bit, converged optical routing, massive throughput, full encryption, and deep routing expertise across heterogeneous networks. The spotlight product was the PTX12K, built on fifth-generation Express silicon. It offers 648 ports of 800GbE with deep buffers, coherent optics on every port, line-rate MACsec, air cooling, and support for 1.6T ports. With a passive mux, 32 ports can share a single fiber across thousands of kilometers without separate transponders.

For customer on-ramp, Chalicheemala presented the MX portfolio, built on programmable Trio silicon now in its sixth generation, with products underway on the seventh. Programmability lets engineers add support for new protocols after a router ships. MX’s large forwarding tables and thousands of VRFs let a single device host thousands of isolated customers, each with its own billing and quality-of-service levels, and its tunneling options carry traffic from the edge deep into the data center. He said MX has served as the on-ramp at most hyperscalers for a decade, and HPE is investing in both silicon lines with roadmaps covering the next three to five years.