Cisco C9300X-24Y-E Switch

The Cisco Catalyst C9300X-24Y-E Switch represents the pinnacle of enterprise-grade network aggregation and core deployment. Designed for high-density fiber connectivity, cloud integration, and advanced security, this switch equips modern enterprise architectures with the speed, scalability, and resilience required to handle bandwidth-intensive applications. Powered by the Cisco Unified Access Data Plane 2.0C (UADP) ASIC architecture and running the modular Cisco IOS XE operating system, the C9300X-24Y-E provides an ideal solution for organizations transitioning toward high-speed 25G backbone connections and automated infrastructure management.

As networks face ever-increasing traffic demands from cloud services, IoT devices, and high-performance computing, the C9300X-24Y-E offers flexible SFP28 ports capable of supporting both 10G and 25G Ethernet speeds natively. Furthermore, with support for Cisco DNA Essentials, network administrators gain access to centralized management, automated provisioning, and comprehensive analytics. Whether upgrading your existing campus core or building a next-generation aggregation layer, exploring high-capacity enterprise networking solutions such as the Cisco Catalyst C9300X-48HX or opting for high-port fiber switching ensures your infrastructure remains resilient and future-proof.

Key Features and Capabilities of Cisco C9300X-24Y-E

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The Catalyst C9300X-24Y-E switch is purpose-built to deliver multi-gigabit throughput, high reliability, and operational simplicity. By integrating advanced optical networking with enterprise-class routing capabilities, this platform eliminates bandwidth bottlenecks across data centers, aggregation layers, and high-speed campus backbones.

High-Density 25G SFP28 Fiber Connectivity

Featuring 24 native SFP28 ports, the C9300X-24Y-E offers versatile dual-rate support for both 10G SFP+ and 25G SFP28 transceivers. This enables seamless migration from legacy 10G backbones to ultra-fast 25G speeds without forcing an immediate overhaul of your optical infrastructure. For networks requiring multi-gigabit copper connectivity alongside fiber switches, combining this device with modular platforms like the Cisco Catalyst C9300X-24HX allows enterprises to maintain balanced fiber-copper ecosystems.

StackWise-1T Technology for High-Density Stacking

Unmatched stacking performance is a hallmark of the Cisco Catalyst 9300X series. With Cisco StackWise-1T technology, the C9300X-24Y-E delivers up to 1 Tbps of stacking bandwidth, allowing up to eight switches to function as a single logical unit. This unified control plane simplifies management, ensures seamless SSO (Stateful Switchover), and maximizes link availability across the entire stack. Organizations comparing different stacking architectures often evaluate multi-gigabit alternatives like the Cisco Catalyst C9300X-48HXN to achieve maximum throughput across mixed deployments.

Flexible Uplink Modules and Architecture

In addition to its native 24 downlink ports, the C9300X-24Y-E features modular uplink slots supporting high-speed uplink modules up to 40G and 100G interfaces. This modularity ensures direct high-speed uplink connections to core switches such as the Cisco Catalyst C9500-48Y4C-E. Flexible module slot design allows network managers to adapt their uplink topology as enterprise bandwidth demands expand over time.

Hardware Specifications and Technical Performance

Built for reliability and sustained performance, the C9300X-24Y-E integrates redundant, hot-swappable power supplies and fans. The platform’s ASIC delivers line-rate L2 and L3 forwarding capability, enabling uncompromised throughput even when hardware-based encryption and security policies are fully enforced.

Cisco C9300X-24Y-E Detailed Specifications Table

Performance and Hardware Capabilities

The routing and switching engine inside the C9300X-24Y-E accommodates vast MAC address tables, IPv4/IPv6 routing tables, and access control lists (ACLs). When compared to standard copper access switches like the Cisco Catalyst C9300X-48TX, the fiber-focused 24Y model excels in transport density, latency reduction, and long-range optical transmission.

Additionally, modular networking accessories ensure smooth installation and cable routing. Slot covers such as the Cisco C9200 Network Module Blank Cover illustrate Cisco’s commitment to maintaining proper thermal management and dust protection across all modular switch product lines.

Software Capabilities: Cisco IOS XE and DNA Essentials

The C9300X-24Y-E runs on Cisco IOS XE, an open, programmable, and modular operating system. IOS XE supports automated workflows, model-driven telemetry, and advanced security protections, allowing IT departments to manage complex enterprise networks with reduced operational friction.

Cisco DNA Essentials Features

The Cisco Network Essentials and DNA Essentials licensing packages unlock a robust suite of capabilities tailored for modern enterprise governance:

• Basic Automation: Centralized management through Cisco Catalyst Center (formerly Cisco DNA Center) with plug-and-play network deployment.
• Telemetry & Analytics: Real-time streaming telemetry providing comprehensive network health visibility and actionable diagnostics.
• Layer 3 Routing Protocols: Support for OSPF, EIGRP stub, IS-IS, and static routing for simplified campus integration.
• Enhanced Security: Hardware-anchored Trust Anchor Module (TAM), Secure Boot, and encrypted traffic analytics capabilities.

For organizations requiring advanced Layer 3 routing features, BGP, EVPN-VXLAN campus fabrics, and state-of-the-art network segmentation, upgrading from Essentials to Advantage licensing provides complete protocol flexibility across all campus tiers.

Comparative Analysis: C9300X-24Y-E vs. Alternative Switching Platforms

Selecting the correct switch tier depends on deployment scale, budget, port density, and feature requirements. The following comparison table highlights key distinctions between the C9300X-24Y-E, mid-tier Catalyst switches, and compact branch solutions.

Switch Comparison Matrix

Evaluating Aggregation Tier Options

When extending network connectivity from core aggregation down to distribution switches, pairing the C9300X-24Y-E with modular uplink accessories creates a flexible network framework. For example, upgrading existing Catalyst 9200 series switches with expansion modules such as the Cisco Catalyst C9200 2x 25G Network Module or the high-capacity Cisco Catalyst C9200 2x 40G Network Module allows legacy branches to communicate smoothly with 25G core switches.

Similarly, mid-range infrastructure can leverage expansion cards like the Cisco Catalyst C9200 4x 10G Network Module or the economical Cisco Catalyst C9200 4x 1G Network Module to aggregate uplink traffic before piping it to the enterprise backbone.

Deployment Scenarios and Network Architecture

The versatility of the Cisco Catalyst C9300X-24Y-E allows it to serve multiple key roles across enterprise, healthcare, financial, and educational campus networks.

1. High-Bandwidth Fiber Aggregation Layer

In medium-to-large enterprise campus architectures, access switches situated on individual office floors aggregate end-user copper connections and feed traffic upward. The C9300X-24Y-E sits directly at the aggregation layer, collecting 10G/25G fiber connections from floor switches. Using high-speed interconnects, it routes data efficiently into the core, eliminating latency and packet drops during peak traffic hours.

2. Compact Data Center Top-of-Rack (ToR) Switch

In virtualized data centers and server farms, high throughput and low port-to-port latency are critical. The 24 SFP28 ports of the C9300X-24Y-E act as an outstanding Top-of-Rack switch, providing dual 10G/25G high-speed connectivity to high-density server nodes, storage arrays, and hyperconverged infrastructure appliances.

3. Compact and Remote Branch Aggregation

For remote offices or small data centers where rack space is limited, deploying full-sized modular chassis switches is often impractical. Compact switches provide a powerful footprint for localized workloads. Where space constraint is severe, compact switches like the Cisco Catalyst C9200CX-8UXG-2XH Switch or specialized pass-through units like the Cisco Catalyst C9200CX-8PT-2G Switch deliver endpoint connectivity, while the C9300X-24Y-E aggregates all incoming fiber uplinks at the branch main distribution frame (MDF).

Complementary Compact Switches for Edge Deployments

To build a complete end-to-end infrastructure, branch networks frequently incorporate compact switches tailored for specific localized power and mounting environments. Consider integrating these compact options into your topology design:

• Cisco Catalyst C9200CX-12T-2X2G Switch – Compact 12-port Gigabit data switch with 10G uplinks for quiet, fanless office environments.
• Cisco Catalyst C9200CX-12P-2X2G Switch – 12-port PoE+ compact switch ideal for powering IP cameras and wireless access points.
• Cisco Catalyst C9200CX-8P-2X2G Switch – Space-saving 8-port compact PoE+ switch for retail kiosks and smart building integration.
• Cisco Catalyst C9200CX-8UXG-2X Switch – High-speed Multigigabit compact switch with 10G uplinks for Wi-Fi 6 access point backhaul.
• Cisco Catalyst C9200CX-12P-2XGH Switch – Specialized compact PoE+ switch designed with HVDC power input support.
• Cisco Catalyst C9200CX-8P-2XGH Switch – Compact 8-port HVDC-compatible switch for specialized industrial and utility installations.

Security, Resilience, and Network Automation

Modern enterprise networks face continuous cyber threats and operational challenges. The Cisco Catalyst C9300X series provides multi-layered security capabilities designed to safeguard sensitive data, maintain uninterrupted service, and automate repetitive tasks.

Advanced Hardware Security Features

Security is natively embedded into the silicon of the C9300X-24Y-E. Key hardware security protections include:

• Cisco Trust Anchor Module (TAM): Provides secure hardware authenticity identification, cryptographic chip protection, and anti-counterfeit checks during system boot.
• MACsec-256 Encryption: Enables line-rate link-layer encryption across 25G ports, securing data transmission between switches, routers, and data center facilities.
• Encrypted Traffic Analytics (ETA): Leverages machine learning and telemetry to detect hidden malware within encrypted traffic streams without decrypting the payload.
• Role-Based Segmentation: Integrates with Cisco TrustSec and Software-Defined Access (SD-Access) to enforce granular dynamic access control policies.

High Availability and Operational Power Efficiency

Network downtime leads to severe operational loss. The C9300X-24Y-E incorporates redundant power supplies and field-replaceable fan modules to deliver carrier-grade uptime. State-of-art thermal designs optimize power consumption, reducing total operational expenses (OpEx) while maintaining high processing speeds.

Furthermore, organizations seeking comprehensive network management solutions can consult additional background resources on core switching concepts, such as our guide on what is a Cisco switch, or review standard operational terms outlined in our terms and conditions and dedicated warranty policy sections.

Installation, Stacking, and Best Practices

To maximize the performance and longevity of your Cisco Catalyst C9300X-24Y-E deployment, network engineers should follow industry best practices during mounting, cabling, and initial setup.

Rack Mounting and Airflow Management

The switch installs standardly into standard 19-inch equipment racks using included rack-mount brackets. Ensure adequate front-to-back airflow clearance around the chassis. For modular slots that remain unpopulated, always install blank covers such as the Cisco C9200 Network Module Blank Cover to preserve proper static pressure and cooling efficiency.

Fiber Cabling and Transceiver Guidelines

When connecting 10G or 25G fiber links to the SFP28 ports:

1. Use original Cisco-certified SFP+ (10G) or SFP28 (25G) optical transceivers or Direct Attach Copper (DAC) cables.
2. Inspect and clean all optical fiber end-faces with specialized fiber cleaning tools before insertion to prevent signal attenuation.
3. Observe minimum bend radius guidelines for optical patch cords to prevent micro-bending signal loss.

StackWise-1T Cabling Best Practices

When forming a StackWise-1T cluster, connect stack cables in a loop-back topology across switches to establish redundant control ring paths. This ensures that if a single stacking cable or switch fails, the remaining stack members maintain full communication at full bandwidth without packet disruption.

Frequently Asked Questions (FAQ)

Q1: What transceivers are supported on the Cisco C9300X-24Y-E SFP28 ports?

The 24 ports natively support both 10G SFP+ transceivers (such as 10GBASE-SR and 10GBASE-LR) and 25G SFP28 transceivers (such as 25GBASE-SR and 25GBASE-LR), as well as compatible Direct Attach Copper (DAC) cables.

Q2: Can I stack a C9300X-24Y-E switch with standard Cisco Catalyst 9300 switches?

Yes, C9300X switches can stack with standard C9300 models. However, when stacked together, the stacking speed defaults to the maximum common speed supported by all switches in the stack (StackWise-480 for standard C9300, or StackWise-1T when stacking exclusively C9300X models).

Q3: What is the primary difference between Cisco DNA Essentials and DNA Advantage licensing?

Cisco DNA Essentials provides baseline network management, telemetry, and L3 static/OSPF routing. DNA Advantage adds advanced features including full BGP routing, Cisco SD-Access fabric capabilities, automated network segmentation, advanced assurance diagnostics, and ThousandEyes integration.

Q4: How does the C9300X-24Y-E compare to high-density copper multi-gigabit switches?

While multi-gigabit copper switches like the Cisco Catalyst C9300X-48HX deliver power (PoE+) and UPOE+ over copper cabling to end-user devices and access points, the C9300X-24Y-E focuses specifically on high-speed optical fiber links for aggregation and core interconnections.

Conclusion and Ordering Information

The Cisco Catalyst C9300X-24Y-E Switch is a high-performance fiber aggregation platform designed to empower enterprise networks with high speed, ultra-low latency, and reliable security. By offering 24 flexible 10G/25G SFP28 ports and 1 Tbps StackWise-1T scalability, this switch equips businesses to meet modern digital infrastructure demands with complete confidence.

To order the Cisco Catalyst C9300X-24Y-E, explore expansion accessories, or consult with certified networking specialists for enterprise architecture guidance, visit our official Nexoget store, check out our general customer services page, or reach out directly through our contact us page. Protect your network investment with guaranteed authentic networking equipment and full enterprise warranty coverage.