In the enterprise networking arena, Cisco’s Catalyst 9300 series is a staple for SMBs and large enterprises. Among its models, the C9300L-48PF-4X-E (PF Edition) and C9300-48UXM-E (UXM Edition) are “specialists”—similar in core design but tailored to distinct roles. Let’s break down their differences, from specs to real-world use.
The “-E” suffix indicates European CE certification. The preceding letters reveal their core focus:
PF Edition: PF stands for “Power over Ethernet Plus,” optimized for high-density PoE+ power delivery (up to 90W per port)—ideal for powering IP phones, APs, and cameras.
UXM Edition: UXM stands for “Unified Access Manager,” emphasizing unified network management (IPv6, multicast, QoS)—built for enterprises needing granular control.
Both share the same CPU and switch chip, but port configurations define their roles:
Spec | C9300L-48PF-4X-E | C9300-48UXM-E |
---|---|---|
Forwarding Rate | 120Gbps (wire-speed) | 120Gbps (wire-speed) |
RAM | 4GB DDR4 (expandable to 8GB) | 4GB DDR4 (expandable to 8GB) |
Flash Storage | 128MB (firmware/config) | 128MB (firmware/config) |
Backplane Bandwidth | 560Gbps | 560Gbps |
Key Difference | 48×10G/1G auto-sensing (40+ PoE+) | 48×10G/1G auto-sensing (IPv6/multicast ready) |
In short: Both handle heavy traffic, but PF focuses on powering devices, while UXM excels at managing complex networks.
Ports: 48×10G/1G auto-sensing (40+ support PoE+ 90W).
Strength: Total PoE+ power up to 3700W (802.3bt compliant)—powers 80+ IP phones, 40+ APs, or 20+ 8K cameras.
Special Feature: “Smart PoE Load Balancing” dynamically adjusts power usage, saving 20% energy during low traffic.
Ideal Use Case: Schools (classrooms with APs/phones), malls (surveillance cameras), or corporate meeting rooms (dense AP deployments).
Ports: 48×10G/1G auto-sensing (supports IPv6, multicast, QoS).
Strength: “Application-Aware QoS” prioritizes video calls over file downloads; integrates with Cisco DNA Center for zero-touch deployment.
Special Feature: “Multicast Routing” ensures smooth live streaming for hospitals or universities.
Ideal Use Case: Large enterprises (multi-department isolation), hospitals (medical device priority), or colleges (campus-wide traffic control).
Size/Weight: Both measure ~47.6cm tall × 439.4mm wide, but PF Edition is heavier (~12kg) due to PoE+ modules; UXM Edition is lighter (~11kg) with a compact layout.
Port Arrangement: PF Edition groups optical ports on the left (fiber-friendly), with PoE+ ports labeled on the right; UXM Edition splits ports into management (top) and business (bottom) rows, with a dedicated Console port for direct debugging.
Power: PF Edition includes dual power supplies (redundant for 30-minute uptime); UXM Edition starts with single power (optional dual for critical sites).
Real-world feedback shows “fit” matters most:
School Network Admins: Prefer PF Edition—PoE+ powers classrooms without extra wiring; “smart load balancing” keeps APs/phones running smoothly.
Enterprise IT Teams: Prefer UXM Edition—“application-aware QoS” and DNA Center app simplify managing video calls, downloads, and IoT devices.
Shared Pain Point: Both have engineer-focused CLIs; new users should use the DNA Center app for quick settings.
Prices differ by ~25% (UXM is pricier due to IPv6/multicast features). Hidden costs depend on your needs:
≤50 Users: PF Edition is cheaper—PoE+ suffices, and UXM’s extra features are unnecessary.
100-300 Users: UXM Edition saves money long-term—no need for separate multicast routers or power adapters.
Multinationals: Buy region-specific models—mixing -E editions avoids compliance and management issues.
Core advantages? Precision engineering:
PF Edition: The “budget-friendly power house” for schools, malls, or small enterprises needing mass device powering.
UXM Edition: The “all-in-one manager” for large organizations requiring granular control over diverse networks.
Both use Cisco IOS XE, but follow these steps to avoid issues:
Upgrade Steps (via Cisco DNA Center):
Log in, go to “Device Management” → “Software Upgrade,” and select region-specific firmware (-E editions only!).
Check devices, click “Upgrade,” and let the system validate the firmware.
Restart after completion (schedule during off-peak hours).
Troubleshooting:
Issue 1: PoE+ ports fail post-upgrade (PF Edition only).
Cause: Non-CE-certified firmware causing PoE+ conflicts.
Fix: Revert to CE firmware, back up config (write memory
), and reload old firmware.
Issue 2: Multicast traffic lags (UXM Edition only).
Cause: Missing “multicast routing” or incorrect IGMP group settings.
Fix: Enable with ip multicast-routing
in CLI, then check groups via show ip igmp groups
.
Need: 30 classrooms with 10 APs, 5 IP phones, and 2 8K cameras each.
Solution: Deploy PF Edition—40+ PoE+ ports power all devices, 3700W total power avoids extra wiring. Result: £80k saved on cabling, zero AP/phone downtime.
Need: Isolate medical devices (highest priority), ensure smooth video calls, and limit public download speeds.
Solution: Deploy UXM Edition—“application-aware QoS” prioritizes medical traffic, video calls use dedicated channels, and public downloads capped at 10Mbps. Result: Doctors report “zero lag in surgery livestreams.”