Full English Description for Cisco C9300X-12Y-A
1. Part Number Naming Breakdown
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C9300X: Catalyst 9300X high-performance stackable Layer 3 enterprise fiber access switch family, equipped with StackWise-1T 1 Terabit stacking, modular uplink module slot and UADP ASIC architectureCisco
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12Y: 12 × SFP28 multi-speed fiber downlink ports, supporting 1G / 10G / 25G Ethernet transceivers, no PoE function
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A: Network Advantage perpetual IOS XE license tier (on-premise managed model, separate from Meraki cloud
-M variants). It unlocks full premium enterprise Layer 2/3, security, automation and telemetry feature setCisco
2. Short Sales One-Liner (For BOM, Quotation & Datasheet Header)
Cisco Catalyst C9300X-12Y-A, 1RU rack-mount stackable Layer3 high-speed fiber switch, 12-port multi-rate SFP28 1/10/25G fiber downlinks with modular uplink expansion slot, Network Advantage license pre-loaded, StackWise-1T 1Tbps stacking support, factory-shipped single 715W AC power supply, on-prem IOS XE managed for enterprise campus, data center leaf, high-density fiber aggregation, 25G Wi-Fi 7 AP and surveillance fiber deployments.
3. Complete Product Overview Paragraph
The Cisco Catalyst C9300X-12Y-A is a fixed-form-factor high-performance all-fiber stackable Layer 3 enterprise access switch within Catalyst 9300X series, designed for high-bandwidth fiber aggregation, data center leaf/spine topologies, 25G Wi-Fi 7 wireless AP termination, and multi-camera surveillance fiber networks. It delivers 12 universal SFP28 downlink ports compatible with 1G, 10G and 25G optical transceivers, plus one dedicated modular uplink slot (C9300X-NM series modules) for flexible 10G/25G/40G/100G uplink expansion. Powered by dual-core UADP ASIC and running full IOS XE 17.x software with permanent Network Advantage license, the switch supports complete enterprise routing, advanced security, programmability and telemetry functions. It leverages StackWise-1T hardware stacking to interconnect up to 8 identical C9300X units into a single logical switch with 1 Terabit aggregate stacking bandwidth, and supports hot-swappable redundant AC power supplies and field-replaceable fan trays for carrier-grade resiliency. Managed locally via CLI, Cisco Catalyst Center (DNA Center), SNMP or RESTCONF instead of Meraki cloud dashboard, it provides robust zero-touch provisioning, traffic analytics and full network segmentation for hybrid enterprise wired-fiber infrastructureCisco.
4. Detailed Hardware Interface Specifications
Downlink Fiber Ports (12 × SFP28)
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12 universal SFP28 ports, auto-negotiate 1000BASE-SR/LR, 10GBASE-SR/LR/ER, 25GBASE-SR/LR transceivers
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Zero PoE capability, pure data fiber switch for high-speed optical termination
Modular Uplink Expansion Slot
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1 dedicated C9300X-NM module slot, supporting optional uplink modules:
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C9300X-NM-8Y: 8 × SFP28 (10/25G)
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C9300X-NM-4C: 4 × QSFP+ (40G)
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C9300X-NM-2C: 2 × QSFP28 (100G)
Stacking Interfaces
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Dual dedicated StackWise-1T rear stacking ports, total 1 Tbps stacking bandwidth per stack group; supports stack ring topology with fast sub-50ms stack convergence
Management & Auxiliary Ports
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USB Type-A storage port for firmware, config backup
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Mini-USB Type-B console port for local CLI access
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RJ45 out-of-band 1G management port
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LED status indicators for port, power, fan, stack and fault alarms
Power & Physical Form Factor
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Form Factor: 1RU standard 19-inch rack-mount chassis, dimensions 4.4 × 44.5 × 48.8 cm
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Dual hot-swappable redundant AC power supply slots; factory pre-installed single 715W AC PSU
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No PoE power budget (data-only fiber model)
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Thermal: 3 field-replaceable variable-speed redundant fan trays, front-to-back airflow
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Compliance: Operating temperature -5°C ~ 45°C, ENERGY STAR certified, IEEE 802.3 standard compliant
5. Core Hardware Performance Benchmarks
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Switching Capacity: 1000 Gbps (1 Tbps)
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Forwarding Rate: 744.04 Mpps (million packets per second)
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MAC Address Table Size: 32,000 MAC entries
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VLAN Support: Up to 4,094 802.1Q tagged VLANs
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QoS Queues: 8 hardware priority queues per port, full DSCP / 802.1p marking & scheduling
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Jumbo Frame: Up to 9198-byte jumbo frame transmission
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ACL Capacity: 5,120 ingress/egress hardware ACL entries
6. Layer 2 Standard Feature Suite (IOS XE Network Advantage)
IEEE 802.1Q VLAN trunking, IEEE 802.3ad LACP EtherChannel (max 8 ports per bundle), PVST+/RPVST+/MSTP spanning tree suite with BPDU guard, root guard and loop guard; LLDP/LLDP-MED, port security with sticky MAC address learning, broadcast/multicast storm suppression, IGMP Snooping v1/v2/v3, SPAN/RSPAN/ERSPAN remote traffic mirroring, private VLANs, voice VLAN prioritization, link fault detection.
7. Layer 3, Security & Automation Features (Network Advantage -A Full License)
Layer 3 Dynamic Routing
Static IPv4/IPv6 routing, RIP v1/v2, OSPF v2/v3, EIGRP, BGP, VRRPv2/v3, PIM sparse-dense mode multicast routing, policy-based routing (PBR), IPv6 dual-stack full support.
Advanced Enterprise Security
IEEE 802.1X multi-factor port authentication, MAB MAC bypass authentication, DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard, CoPP control-plane policing, hardware MACsec 128/256-bit link encryption, TrustSec SGT Adaptive Policy micro-segmentation, ACL logging, threat control, encrypted traffic analytics support.
Network Automation & Telemetry
Zero-touch provisioning (ZTP), RESTCONF / NETCONF / YANG programmability, Python EEM scripting, full streaming telemetry, IPFIX flow export, DNA Center integration, scheduled automatic firmware upgrades, RBAC multi-admin access control, centralized syslog & SNMPv3 monitoring.
8. License Tier Differentiation (C9300X On-Prem Models)
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Network Essentials
-E (Base Tier)
Basic Layer 2, static routing, limited security and telemetry; no EIGRP/BGP/TrustSec/256-bit MACsec/streaming telemetry support. Limited OSPF scale and restricted automation functions.
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Network Advantage
-A (Full Tier, This Model)
Unlimited full Layer 3 routing suite (EIGRP/BGP/IPv6), TrustSec Adaptive Policy, 256-bit MACsec, complete streaming telemetry, ERSPAN, advanced automation, full DNA Center integration, unlimited ACL/VLAN scale and enterprise-grade threat security functions.
Key difference vs Meraki cloud -M models: C9300X-A/E runs native IOS XE for on-prem management; C9300X-M runs Meraki cloud-managed firmware requiring Meraki Dashboard subscriptions, no standalone IOS XE perpetual licenses. All stacked switches must match identical license tiers for full feature interoperability.
9. Datasheet Short Summary Paragraph
The Cisco Catalyst C9300X-12Y-A is a high-performance 1RU stackable Layer 3 all-fiber enterprise switch with 12 multi-rate 1/10/25G SFP28 downlinks, modular flexible high-speed uplink expansion, and permanent Network Advantage IOS XE license. Equipped with StackWise-1T 1Tbps stacking, redundant power/fan resiliency and full on-prem DNA Center / CLI management, it delivers complete advanced routing, TrustSec micro-segmentation, MACsec encryption and streaming telemetry. Ideal for large campus fiber aggregation, Wi-Fi 7 AP termination, surveillance fiber networks and small-scale data center leaf deployments requiring high-density 25G optical ports and unrestricted enterprise Layer 3 feature capability.
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