Cisco C9300X-12Y-E switch

Cisco Catalyst 9300X – Cisco Catalyst C9300X‑12Y‑E Switch is a high‑performance, enterprise‑grade, managed Layer 3 network switch designed for modern campus, data center aggregation, and core access environments. It’s part of Cisco’s 9300X family — an enhanced version of the Catalyst 9300 series optimized for 25 Gbps networking and advanced routing.

This model comes with 12 × 1/10/25 Gbps SFP28 ports, which support flexible fiber or high‑speed copper optics for uplinks and aggregation links. These ports can operate at 25 G, 10 G, or 1 G speeds depending on transceiver modules used, making the switch ideal for environments where scalable bandwidth and future‑proof connectivity are priorities.

The C9300X‑12Y‑E runs Cisco IOS XE with the “Network Essentials” feature set, offering essential enterprise capabilities such as advanced Layer 2 switching, IPv4/IPv6 routing, VLAN segmentation, Quality of Service (QoS), access control lists (ACLs), and robust security controls.

It supports stacking (StackWise‑1T) with other Catalyst 9300X‑series switches, enabling up to eight members to operate as a single logical unit with up to 1 Tbps stacking bandwidth, simplifying management and increasing redundancy.

Key performance figures include up to ~1,000 Gbps switching capacity (up to ~2,000 Gbps with stacking) and forwarding rates around 744 Mpps standalone (higher when stacked). The switch also has a 32,000‑entry MAC address table, support for jumbo frames, and strong routing scale for large VLANs and IPv4/IPv6 routes.Physically, it is a 1 RU rack‑mountable chassis with modular uplink capabilities and options for redundant power and cooling, designed for continuous enterprise operation.

Overall, the Cisco C9300X‑12Y‑E is suited for high‑speed access or aggregation layers in enterprise campus networks, data centers, and hybrid cloud infrastructures that demand flexible high‑speed ports, advanced routing, security, and scalability.