Full English Description for Cisco C9300L-48UXG-4X-E (Short Name C9300L-48UX-4X-E)

1. Part Number Naming Breakdown

Model: C9300L-48UXG-4X-E

C9300L: Catalyst 9300 Lite stackable fixed-uplink Layer 3 enterprise access switch powered by UADP ASIC, cost-optimized fixed uplink platformCisco
48UXG (48UX): Hybrid 48-port full UPOE copper ports: 12 Multi-Gigabit mGig ports (100M/1G/2.5G/5G/10Gbps) + 36×10/100/1000BASE-T Gigabit ports. All ports support Cisco UPOE up to 60W per port, IEEE 802.3bt Type 3 compliant, backward compatible with IEEE 802.3af (15.4W PoE) and IEEE 802.3at (30W PoE+)
4X: 4 integrated fixed dual-rate SFP+ uplink slots, auto-negotiate 1G SFP and 10G SFP+ transceivers for high-speed fiber aggregation
E: Pre-installed perpetual Network Essentials IOS XE license tier, entry baseline feature set for mixed-speed high-power PoE campus, retail and branch deployments, without advanced routing, SD-Access full automation and TrustSec advanced segmentation capabilities

2. Short Sales One-Liner (For BOM, Quotation & Datasheet Header)

Cisco Catalyst C9300L-48UXG-4X-E, 1RU stackable Layer3 mixed mGig+Gigabit UPOE access switch, 12×Multi-Gigabit + 36×Gigabit full UPOE RJ45 downlinks with 675W native UPOE power budget, 4 fixed dual-rate 1G/10G SFP+ uplink interfaces, Network Essentials IOS XE license, StackWise-320 stacking support, factory pre-installed 1100W AC power supply, cost-effective multi-speed high-power PoE edge switch for Wi-Fi 6/6E APs, PTZ IP cameras, digital signage and mixed desktop/IoT endpoints requiring 10G high-bandwidth uplink aggregation.

3. Complete Product Overview Paragraph

The Cisco Catalyst C9300L-48UXG-4X-E is an economical hybrid multi-gigabit fixed-uplink stackable Layer 3 UPOE access switch within the Catalyst 9300 Lite portfolio, designed for enterprise campuses, retail chains, K-12 education and remote branch networks with mixed-speed endpoint deployments. High-bandwidth Wi‑Fi 6/6E wireless APs, PTZ surveillance cameras and high-resolution digital signage utilize the 12 multi-gigabit mGig ports supporting up to 10Gbps, while standard VoIP phones, office PCs and low-power IoT sensors connect to the 36 1G copper ports; all 48 ports deliver full Cisco UPOE power up to 60W per port to eliminate external power injectors. Equipped with four built-in dual-speed SFP+ uplink ports supporting native 10G aggregation bandwidth, this chassis delivers wire-speed Layer 2 switching and limited fundamental Layer 3 routing functions unlocked by the included Network Essentials license. It supports StackWise‑320 stacking technology to group up to 8 identical switches into a single logical stack, features dual hot‑swappable 1100W AC power supply bays delivering a native 675W UPOE power budget, and provides basic on-premises monitoring, security and automation tools. This model excludes advanced routing protocols, full SD‑Access fabric orchestration and TrustSec Adaptive Policy segmentation that are only available under the Network Advantage (-A) license tier.

4. Detailed Hardware Interface Specifications

Downlink Copper Ports (48×Mixed mGig + Gigabit Full UPOE)

12 × Multi-Gigabit mGig RJ45 ports: auto-negotiate 100Mbps / 1Gbps / 2.5Gbps / 5Gbps / 10Gbps, IEEE 802.3bz compliant, full Cisco UPOE certified, max 60W power per port
36 × 10/100/1000BASE-T Gigabit RJ45 ports, full Cisco UPOE compliant, max 60W power per port
All ports backward interoperable with IEEE 802.3af (15.4W PoE) and IEEE 802.3at (30W PoE+) powered devices
Auto speed negotiation, auto‑MDI/MDI‑X, integrated cable diagnostics, EnergyWise intelligent PoE power management to cut idle power consumption for high-power endpoints
Hardware support for 128-bit AES MACsec link encryption; 256-bit MACsec unavailable under Network Essentials license

Fixed Uplink Interfaces

4 onboard dual-rate SFP+ slots compatible with 1G SFP and 10G SFP+ transceivers (SX, LX, ZX, LR, copper SFP‑T and SFP+‑T DAC modules supported)
Uplink ports are factory fixed; no modular uplink card expansion slots available

Management & Auxiliary Ports

USB Type‑A storage port for offline IOS image upload, configuration backup and system log export
Dual console access: USB Type‑C console port + Mini‑USB B console port for local CLI management
UID beacon LED push-button for rapid physical device identification in dense rack deployments
Rear dedicated StackWise‑320 stacking connectors; stacking cable kits sold separately as optional accessories

Power & Physical Form Factor

Form Factor: 1RU standard 19-inch rack-mount chassis
Dual hot‑swappable redundant AC power supply slots; factory shipped with single 1100W AC PSU (PWR‑C1‑1100WAC‑P)
UPOE power budget: Single 1100W PSU provides total 675W UPOE capacity; dual redundant PSUs drastically expand total PoE output for full high-power endpoint deployments
Thermal design: Field-replaceable redundant variable-speed fan trays with overheat protection and front-panel fault status LED indicators

5. Core Hardware Performance Benchmarks

Standalone Switching Capacity: 392 Gbps
Standalone Forwarding Rate: 291.66 Mpps
StackWise‑320 maximum stacked backplane bandwidth: 592 Gbps (stack of up to 8 C9300L switches)
MAC Address Table Size: 32,000 MAC forwarding entries
Shared Packet Buffer Memory: 16MB
Onboard Memory: 8GB DRAM, 16GB Flash storage
VLAN Support: Up to 4,094 802.1Q tagged VLANs; maximum 1,000 active STP VLANs & SVIs
QoS Hardware Queues: 8 priority hardware queues per port, full DSCP & 802.1p CoS mapping
Routing Table Scales: 32,000 total IPv4 unicast routes (OSPF limited to 1,000 learned routes), 16,000 IPv6 unicast routes, 8,000 multicast routes
Jumbo Frame Support: Up to 9198-byte jumbo frames
ACL Capacity: 5,120 ingress/egress ACL entries
Flexible NetFlow: Supports up to 64,000 active flow records

6. Full Layer 2 Standard Feature Suite

IEEE 802.1Q VLAN trunking, IEEE 802.3ad LACP EtherChannel (max 8 ports per bundle), complete spanning tree suite including PVST+, RPVST+, MSTP with BPDU guard, root guard, loop guard and UDLD; LLDP and CDP unified device discovery inventory, port security with sticky MAC allowlist learning, broadcast/multicast storm suppression, IGMP Snooping v1/v2/v3, SPAN/RSPAN remote port mirroring, private VLANs, voice VLAN auto-detection and traffic prioritization, hardware 128-bit MACsec link encryption.

7. Network Essentials (-E License) Supported Layer 3, Security & Automation Features

Supported Routing Protocols (With Scale Restrictions)

Static IPv4/IPv6 routing, RIP, OSPFv2/v3 (capped at 1,000 learned routes), EIGRP Stub only, PIM Sparse-Dense Mode stub multicast, VRRP gateway redundancy, inter-VLAN wire-speed routing, dual-stack IPv4/IPv6 forwarding.

Baseline Enterprise Security

IEEE 802.1X multi-domain/multi-host authentication, MAB MAC bypass authentication, DHCP snooping, Dynamic ARP Inspection (DAI), IP Source Guard, CoPP control-plane policing, Cisco Secure Boot, hardware Trust Anchor Module, multi-level RBAC admin access control, TLS/SSH/HTTPS encrypted management transport.

Basic Automation, Visibility & Monitoring

SNMP v1/v2c/v3, IP SLA Responder, sampled Flexible NetFlow telemetry, NETCONF/RESTCONF/YANG/gRPC programmability, zero-touch provisioning (ZTP), limited Cisco DNA Center read-only visibility without full fabric orchestration, local logging and on-box diagnostics.

Critical Features Excluded from Network Essentials (-E)

Advanced dynamic routing: Full EIGRP, BGP, IS‑IS, MPLS, VRF‑lite, policy-based routing (PBR)
Software-defined fabric full capabilities: SD‑Access end-to-end automation, TrustSec SGT end-to-end tagging, Adaptive Policy security group segmentation
Advanced analytics: Encrypted Traffic Analytics (ETA), full Model-Driven Telemetry, ThousandEyes integration
Unified wireless fabric: Embedded Catalyst 9800 WLC multi-site policy orchestration
256-bit AES MACsec link encryption (only 128-bit MACsec available)

8. License Differentiator: Network Essentials (-E) vs Network Advantage (-A)

The suffix -E (Network Essentials) is Cisco’s entry perpetual license tier for Catalyst 9300L switches, built for cost-sensitive mixed multi-gigabit high-power UPOE wired access deployments. Key limitations compared with top-tier -A Network Advantage:

Restricted dynamic routing scale and no advanced routing protocols such as BGP, full EIGRP or MPLS
Incompatible with full SD‑Access fabric deployment, end-to-end TrustSec segmentation and zero-trust Adaptive Policy control
Disabled advanced threat analytics and full bidirectional DNA Center automation workflows

All switches within a single StackWise stack must deploy identical license tiers to guarantee full stacking interoperability and consistent feature operation.

9. Datasheet Short Summary Paragraph

The Cisco Catalyst C9300L-48UXG-4X-E is a cost-effective hybrid multi-gigabit UPOE stackable Layer 3 access switch equipped with 12×10G-capable mGig + 36×Gigabit full UPOE downlinks and four dual-rate SFP+ 1G/10G fixed uplink ports. Powered by the baseline Network Essentials IOS XE license, it delivers comprehensive Layer 2 switching, limited fundamental Layer 3 routing, baseline enterprise security tools and basic network automation, backed by StackWise‑320 high-speed stacking and redundant 1100W AC power supplies with a dedicated 675W native UPOE power budget. It is perfectly suited for standard campus, retail and branch mixed-speed edge networks with high-power PoE endpoints, 10G high-bandwidth aggregation uplink requirements, and no demand for full SD‑Access fabric or advanced enterprise routing capabilities.


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