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PoE+ capability and port configuration
The switch has 48 x 10/100/1000BASE-T PoE+ (IEEE 802.3at) downlink ports, each providing up to 30 W per port, and 4 x fixed 1G SFP uplink ports enabling flexible fibre backbone integration. It has one 715 W AC power supply (field replaceable) with a total PoE budget of 505 W, scalable to 1,440 W with an optional second supply. Two power supply slots and three field-replaceable N+1 redundant fans ensure maximum availability.
Performance & Stackability
The standalone switching capacity is 104Gbps and the forwarding rate is 77.38 million packets per second (Mpps). StackWise-320 technology provides 320 Gbps stacking bandwidth, extending total switching capacity to 424 Gbps and forwarding rate to 315.48 Mpps across up to eight switches. The platform can support up to 32,000 MAC addresses, up to 4,094 VLANs and jumbo frames up to 9,198 bytes.
Security, Software, and Deployment at its Best
The switch supports AES-256 MACsec encryption, TrustSec, Encrypted Traffic Analytics (ETA) and 802.1X authentication and is based on Cisco IOS XE and the UADP 2.0 ASIC. Available with perpetual licenses of Network Essentials or Network Advantage. The C9300L 48P 4G series is suited for campus access layers, large branch offices, and convergent PoE+ deployments where 1G uplink capacity is plenty for IP phones, Wi-Fi access points, cameras, and IoT devices.
FAQ
Q1: What is the Cisco Catalyst C9300L-48P-4G used for?
A1: It is a Layer 3 stackable enterprise access switch designed for campus networks and branch offices. It is commonly used to connect end devices such as IP phones, Wi-Fi access points, IP cameras, and IoT devices while providing both data and PoE+ power.
Q2: How many ports does it have?
A2: ● 48 × 10/100/1000BASE-T PoE+ downlink ports.
● 4 × 1G SFP uplink ports for fiber connectivity.
Q3: Does it support PoE+ and how much power per port?
A3: Yes. Each downlink port supports IEEE 802.3at PoE+ with up to 30W per port, suitable for high-power devices like Wi-Fi 6 access points and PTZ cameras.
Q4: What is the total PoE power budget?
A4: ● Default power supply: 715W AC.
● PoE budget: about 505W.
● Optional second power supply increases redundancy and total available power (up to ~1440W configuration depending on PSU setup).
Q5: Does it support stacking?
A5: Yes. It supports StackWise-320 technology, allowing:
● Up to 8 switches in one stack.
● 320 Gbps stacking bandwidth.
● Unified management of multiple switches as a single system.
Q6: What is the switching performance?
A6: ● Switching capacity: 104 Gbps (standalone).
● Forwarding rate: 77.38 Mpps.
● Stack capacity: up to 424 Gbps total.
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