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Switches and Routers

SLX 9540

Next-Generation Fixed Router with Flexible Edge Connectivity for the Digital Organization

Product Highlights

  • Enables flexible edge connectivity by cost-effectively delivering density, features, and performance optimized for data center interconnect, WAN edge, IXP, and colocation data center deployments
  • Includes multiple configurations of dense 10 GbE and 100 GbE ports for diverse deployment options
  • Delivers up to 720 Mpps forwarding capacity and up to 800 Gbps switch fabric capacity with an industry-leading 6 GB of tunable, ultra-deep packet buffers in a 1U form factor
  • 6 GB of tunable, ultra-deep packet buffers in a 1U form factor
  • Provides carrier-class forwarding, including full IPv4/v6 switching, MPLS, VPLS, VLL, and BGP-EVPN VXLAN overlay capabilities on a single platform
  • Integrated Application Hosting enables Extreme-provided or 3rd-party applications without impacting switch performance

With cloud services, 4K HD video streaming, Internet of Things (IoT), and mobile connectivity for billions of devices becoming standard, organizations must modernize the way they communicate and conduct business. In addition to consuming an enormous amount of network capacity, these services increase operational complexity just as organizations are striving to meet customer demands for greater business agility and performance.

To succeed in the digital era, organizations need network platforms that allow them to simplify and speed up operations, without increasing costs. Such platforms incorporate innovative software to analyze and automate network operations, thereby reducing OpEx, and provide flexible deployment options with forwarding performance and scale to dramatically reduce CapEx.

A Flexible, High-Performance Switching Platform

The ExtremeRouting SLX 9540 is designed to cost-effectively deliver the performance needed to address the explosive growth in network bandwidth, devices, and services — today and well into the future. This flexible platform, powered by Extreme SLX-OS, provides carrier-class advanced features that leverage proven Extreme routing, MPLS, Carrier Ethernet, and VXLAN overlay technology currently deployed in the most demanding service provider, data center, and enterprise networks. And it is all delivered through space- and power-efficient forwarding hardware.

The flexible architecture is designed for optimal operations, supporting diverse deployment options — such as data center edge, WAN edge, IXP, and collocation data center deployments — that require deep buffering for lossless forwarding, advanced MPLS, Carrier Ethernet features or VXLAN network virtualization overlays, and greater bandwidth. In addition, the SLX 9540 helps address the increasing agility and analytics needs of digital organizations with innovative network automation, visibility and the Extreme Integrated Application Hosting.


The SLX 9540 is the industry’s most powerful compact deep buffer data center switch, providing a cost-efficient solution that is purpose-built for the most demanding service provider and enterprise data centers and MAN/ WAN applications. The robust system architecture — supported by SLX-OS and a versatile feature set including IPv4, IPv6, and MPLS/VPLS — combines with Carrier Ethernet 2.0 and OAM capabilities to provide deployment flexibility. This enables the SLX 9540 to scale from the data center edge to data center interconnect and MAN/WAN environments.

Designed with state-of-the-art network processor technology,the SLX 9540 has a switching capacity of up to 800 Gbps in a 1U form factor. Advanced hardware with fine-grained QoS support enables full-duplex, high-speed performance for any mix of IPv4, IPv6, and MPLS/ VPLS services.

SLX 9540 hardware is available in multiple configurations enabled through SLX-OS feature licenses. The SLX 9540- 24S supports 24 10 GbE/1 GbE combination ports along with 24 1 GbE ports. The SLX 9540-48S supports 48 10 GbE/1 GbE combination ports along with 6 100 GbE/40 GbE combination ports. Individual SLX-OS software licenses are available to enable all 48 10 GbE/1 GbE and 6 100 GbE/40 GbE ports on the SLX 9540-24S, making it equivalent to the SLX 9540-48S. This approach provides financial and operational flexibility for diverse business and service deployment needs.

The SLX 9540 runs SLX-OS and supports advanced routing, MPLS, and Carrier Ethernet 2.0 features. It is highly programmable with support for REST and NETCONF.

SLX-OS runs in a virtualized environment over a KVM hypervisor, with the operating system compartmentalized and abstracted from the underlying hardware. The core operating system functions for the SLX 9540 are hosted in the system VM.

This approach provides clean failure domain isolation for the switch operating system while leveraging the x86 ecosystem — thereby removing single vendor lock-in for system tools development and delivery. In addition, it supports a guest VM, which is an open KVM environment for running third-party and customized monitoring, troubleshooting, and analytics applications.

Gain flexibility and scale. The SLX 9540 delivers space-, power-, and cost-efficient density along with high performance for data center interconnect, WAN edge, IXP, colocation data center, and metro Ethernet network deployments.

SLX 9540 Architecture

The SLX 9540 architecture is designed to support connectivity needs today and well into the future as bandwidth and application workload requirements change. Extreme Networks offers an array of SLX 9540 configurations with software licenses to help organizations optimize port density and capabilities. These switches leverage the latest Intel x86 CPU and merchant silicon packet processor technology for optimal space, power, and cooling in a highly reliable, carrier-class compact fixed switching platform.

The SLX 9540 delivers:

  • Multiple 1/10/40/100 GbE configurations for deployment flexibility
  • Ultra-deep buffers for lossless forwarding in demanding data center and WAN applications
  • Advanced forwarding — including IPv4, IPv6, MPLS/ VPLS, and BGP-EVPN — to support diverse use cases