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Cisco Nexus 9000 series

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Cisco Nexus 9000 series
NameCisco Nexus 9000 series
ManufacturerCisco Systems
FamilyNexus
Introduced2013
TypeData center switch
Ports1/10/25/40/50/100 Gigabit Ethernet
OsNX-OS, Application Centric Infrastructure (ACI)

Cisco Nexus 9000 series

The Cisco Nexus 9000 series is a family of data center Ethernet switches designed by Cisco Systems for high-density, high-performance Ethernet fabrics. Released during the 2010s as part of Cisco’s Nexus line, the series targets cloud providers, enterprise data centers, and service providers requiring low-latency switching and high throughput. The portfolio integrates with software-defined networking initiatives led by vendors and initiatives such as VMware, Microsoft Azure, Amazon Web Services, Google Cloud, and supports programmability approaches championed by projects like OpenStack and OpenFlow.

Overview

The Nexus 9000 series occupies a role in Cisco’s portfolio alongside the Cisco Nexus 7000 series and Cisco Nexus 3000 series, focusing on campus-to-cloud fabrics and spine-and-leaf topologies promoted by industry adopters including Facebook, Netflix, LinkedIn, eBay, and Twitter. Designed for dense 10/40/100 Gigabit Ethernet deployments, the series competes with offerings from Juniper Networks, Arista Networks, Hewlett Packard Enterprise, and Dell EMC. Its launch coincided with the growth of software-defined networking and intent-based networking trends associated with organizations like Open Networking Foundation and standards efforts such as those by the IETF.

Models and Hardware

Hardware variants include fixed-form-factor and modular switches, such as 1RU leaf devices and larger chassis intended for spine roles. Notable models span compact units used in top-of-rack roles and high-density platforms for aggregation favored by operators like AT&T, Verizon, Comcast, and BT Group. Line cards and supervisors in modular variants leverage silicon from partners and competitors like Broadcom and integrate optics from suppliers such as Finisar and Avago Technologies. The product family supports a range of optics standards and interfaces standardized by bodies like IEEE 802.3 and leverages cabling ecosystems including vendors such as Corning and CommScope.

Software and Operating Modes

The Nexus 9000 series runs Cisco’s NX-OS and can operate in two principal modes: NX-OS standalone mode and Application Centric Infrastructure (ACI) mode. NX-OS mode aligns with traditional switch operating paradigms familiar to operators at organizations such as IBM and Oracle, while ACI mode integrates with Cisco’s policy-driven Fabric Controller and management tools used by customers like Goldman Sachs and Bank of America. ACI mode interoperates with orchestration platforms from Red Hat and Canonical and automation frameworks such as Ansible, Puppet, and Chef. The series also exposes programmability via APIs promoted by consortia like the OpenAPI Initiative and protocols endorsed by the IETF.

Features and Technologies

Key features include support for VXLAN-based overlay networks used by cloud platforms like VMware vSphere and OpenStack Neutron, hardware-accelerated forwarding via silicon designed for large forwarding tables, and telemetry capabilities aligned with standards from OpenConfig and the IETF IPFIX working group. High-availability technologies mirror practices in deployments at Goldman Sachs and Citi, incorporating features such as virtual PortChannel (vPC), Bidirectional Forwarding Detection (BFD), and advanced Quality of Service (QoS). The platform supports programmability via Model-Driven Telemetry and integrations with monitoring tools from Splunk, Datadog, and Prometheus.

Deployment and Use Cases

Enterprises and hyperscalers use Nexus 9000 switches for spine-leaf fabrics, campus core aggregation, and purpose-built roles in NFV stacks deployed by carriers like Telefonica and Deutsche Telekom. Use cases include multi-tenant cloud fabrics at companies such as Salesforce and Adobe, high-performance computing clusters at institutions like CERN and Lawrence Berkeley National Laboratory, and low-latency trading environments used by firms in Wall Street financial districts. The series supports converged fabrics for compute, storage, and telemetry in environments modernized by system integrators such as Accenture and Capgemini.

Management, Automation, and Security

Management integrates with Cisco management suites including Cisco Prime and policy frameworks tied to Cisco DNA Center, and the ACI controller used in automated policy enforcement. Automation integrates with CI/CD toolchains adopted by companies like GitHub and GitLab and supports network-as-code practices promoted by communities around Terraform and Kubernetes. Security features align with enterprise expectations from organizations such as Symantec and McAfee, offering ACLs, microsegmentation in ACI fabrics, and integration with identity providers including Okta and Microsoft Azure Active Directory. The platform also supports encrypted traffic analytics and integration with secure telemetry exporters used by vendors like Palo Alto Networks and Fortinet.

Category:Cisco Nexus