Cisco Nexus 9000

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Ultra Ethernet for Scalable AI Network Deployment

Cisco, in collaboration with the Ultra Ethernet Consortium (UEC), is addressing the networking challenges of artificial intelligence (AI) and high-performance computing (HPC) data centers with innovative solutions like link layer retry (LLR), credit-based flow control (CBFC), packet trimming, and congestion signaling. Discover how Cisco Nexus 9000 Series Switches empower organizations to build reliable, high-performance, and scalable infrastructure for the AI era.

October 14, 2025 4 min read
Blog post

The Tipping Point: Managing the Cost of Data Center Interconnect in the AI Era

AI is starting to push data center interconnect (DCI) capacity towards higher speeds. Since the cost structure of DCI is usually based on bandwidth usage, costs will quickly multiply, as enterprises will need more circuits to support increased capacity demands. A less costly alternative for enterprises is to lease dark fiber from service providers and create their own private network.

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Showcasing Cisco’s Commitment to Openness: VXLAN BGP EVPN with OpenConfig

The world of data center networks is evolving at an ever-increasing pace. Businesses are being faced with the growing complexity of scaling data center fabrics, while also ensuring the isolation and security of customer data. Fundamental to this isolation of customer traffic is network virtualization, of which Cisco has been a constant innovator.

August 30, 2022 3 min read
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Myth Busting Part 3: Not all 400G and 800G switches are created equally

While other network providers continue to use commodity chips, Cisco has been developing custom silicon for Nexus switches since 2014. Creating our own ASIC was the only way to fully realize the promise of software-defined networking and enable advanced capabilities like network segmentation, flexible forwarding, intelligent buffering, and deep telemetry.

August 8, 2022 3 min read
Blog post

How Cybersecurity Leads to Improved Sustainability

Cybersecurity attacks rose by 3-4 times during the transition to remote work in 2020. Ransomware cost $20 billion in 2021 and is expected to be an even greater concern with hybrid work models. Learn how to rapidly scale security to accomodate remote and hybrid workers with Cisco Secure Network Analytics, Cisco Catalyst and Cisco Nexus switches , all while simplifying and unifying your IT systems.

December 22, 2021 2 min read