Overview of Cisco C1000-48T-4G-L

The ​​Cisco Catalyst C1000-48T-4G-L​​ is a ​​48-port Layer 2 switch​​ engineered for small to midsize businesses (SMBs) needing dense connectivity without Power over Ethernet (PoE) complexity. With ​​48x Gigabit Ethernet ports​​, ​​4x1G SFP uplinks​​, and a ​​fanless design​​, it balances high port density with energy efficiency. The “4G-L” suffix denotes four uplink ports and a ​​limited lifetime hardware warranty​​, making it a durable, budget-friendly solution for growing networks.


Key Features and Deployment Flexibility

​Hardware and performance highlights​​:

  • ​Port density​​: 48x 10/100/1000BASE-T ports + 4x SFP slots for fiber/copper uplinks.
  • ​Switching capacity​​: 104 Gbps, enabling non-blocking throughput for data-heavy workloads.
  • ​Layer 2 capabilities​​: VLANs, QoS, port security, and static routing for basic traffic segmentation.
  • ​Energy efficiency​​: Complies with IEEE 802.3az, reducing idle power consumption by up to 70%.

​Ideal use cases​​:

  • ​Enterprise branch offices​​: Centralizing connectivity for large teams or device clusters.
  • ​Education campuses​​: Linking computer labs, libraries, and administrative servers.
  • ​Manufacturing facilities​​: Supporting non-PoE IoT sensors and legacy equipment.

C1000-48T-4G-L vs. Lower-Port Models: Scaling Made Simple

​Feature​ ​C1000-48T-4G-L​ ​C1000-24T-4G-L​
​Port Count​ 48 RJ45 + 4 SFP 24 RJ45 + 4 SFP
​Switching Capacity​ 104 Gbps 56 Gbps
​Power Draw​ 35W (typical) 25W (typical)

​Choose the 48T-4G-L if​​:

  • Your network requires ​​high port density​​ to reduce daisy-chaining switches.
  • Future expansion is anticipated (e.g., adding more workstations or servers).
  • Budget constraints prioritize long-term scalability over PoE features.

Addressing Critical User Questions

​Q: Can this switch handle VoIP or video conferencing traffic?​

​Yes​​, but prioritize traffic using ​​QoS settings​​ to minimize latency. For PoE-dependent VoIP phones, pair with a PoE switch or injectors.

​Q: Is it compatible with older Cisco switches?​

​Yes​​, it supports standard protocols like LLDP and CDP for seamless integration with existing Cisco infrastructure.

​Q: How difficult is firmware management?​

The ​​Cisco Business Dashboard​​ simplifies updates, while CLI access allows granular control. Regular updates ensure compliance with security standards like CVE-2023-20198 patches.


Sourcing and Warranty Considerations

To ensure authenticity and support, purchase the C1000-48T-4G-L through authorized partners like ​itmall.sale​. Always verify firmware is updated to ​​Version 2.5.5​​ or later for optimal performance and security.


Final Perspective

The C1000-48T-4G-L addresses a critical gap in the SMB market: delivering enterprise-grade port density at a fraction of the cost of PoE alternatives. While cloud-managed switches dominate trends, this model remains a workhorse for businesses prioritizing physical scalability and operational simplicity. Its fanless design and warranty underscore Cisco’s commitment to reliability—a must for organizations where downtime directly impacts productivity.

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