C1000-24T-4X-L – 24x1G Data Ports – 4x10G SFP+ Uplinks – Fanless Catalyst 1000

Brand: Cisco Category: Catalyst 1000 Switches Model: C1000-24T-4X-L
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C1000-24T-4X-L Description

The C1000-24T-4X-L is a Cisco Catalyst 1000 Series fixed managed Layer 2 Gigabit Ethernet switch for fanless access closets that need 10G fiber uplinks. The switch has 24 10/100/1000 RJ45 data ports, four 10G SFP+ uplinks, 64 Gbps of forwarding bandwidth and 95.23 Mpps of forwarding rate, with no PoE budget. The switch has one fixed internal AC power supply that cannot be replaced in the field, and it does not stack, although up to eight Catalyst 1000 units with 10G uplinks can be managed under a single IP address.

Quick Specs

Parameter

Specification

Product ID

C1000-24T-4X-L

Product type

Fixed managed Gigabit Ethernet Layer 2 switch

Downlink ports

24 x 10/100/1000 RJ45 data ports

Uplink ports

4 x 10G SFP+ uplinks

PoE budget

Data model with no PoE budget

Fan design

Fanless 24-port model

Internal power input

Single fixed internal AC power supply

Forwarding bandwidth

64 Gbps for 24-port models with 10G uplinks

Switching capacity

128 Gbps for 24-port models with 10G uplinks

Forwarding rate

95.23 Mpps for 24-port models with 10G uplinks

Dimensions

17.48 x 9.45 x 1.73 in.

Weight

2.78 kg

Product Performance

Gigabit Access Port Count
Higher-Speed Fiber Uplink Tier
24-Port 10G-Uplink Forwarding Class

Key Features

24 Gigabit Data Ports Without PoE

All 24 RJ45 ports carry data only, which suits desktops and printers and leaves the closet without a PoE budget to plan around.

Four 10G SFP+ Uplinks

Each uplink slot takes 10G SFP+ or 1G SFP optics, so the switch can start on 1G fiber and move to 10G without a hardware change.

Fanless Chassis At 2.78 kg

With no fans the switch makes no noise and has no moving parts to fail, and it fits a wall mount, a shelf or the supplied 19-inch brackets.

Thermal Limit With Long-Reach Optics

SFP-10G-ER and SFP-10G-ER-S modules cap the ambient temperature at 45 C up to 5,000 ft and 40 C up to 10,000 ft, which matters for uplinks in warm cabinets.

Single IP Management For 10G Units

Up to eight Catalyst 1000 switches with 10G uplinks can join one management group through the front-panel SFP+ ports. Units with 1G uplinks cannot join the same group.

One Universal Software Image

Every Catalyst 1000 runs the same Cisco IOS image with advanced Layer 2 features, so there are no license tiers to upgrade and the CLI and on-box web UI stay the same across the series.

Application Scenarios

Branch Office Access Closet

In a branch office closet, the switch connects 24 desktops, printers and phones that have their own power, and carries their traffic to the site core over 10G SFP+ uplinks.

Quiet Classroom Or Library Cabinet

A school or library can mount the fanless switch in a shared cabinet near occupied rooms, where the lack of fans keeps the closet silent.

Small Campus Building Aggregation

Several 24-port switches in one building can share a single management IP through their SFP+ uplinks, so a small campus IT team configures them as one group.

Product Comparison

Parameter

C1000-24T-4X-L

C1000-24T-4G-L

C1000-24P-4X-L

C1000-48T-4X-L

Ports

24 x 10/100/1000 RJ45 data

24 x 10/100/1000 RJ45 data

24 x 10/100/1000 RJ45 PoE+

48 x 10/100/1000 RJ45 data

Uplinks

4 x 10G SFP+

4 x 1G SFP

4 x 10G SFP+

4 x 10G SFP+

Default PoE budget

No PoE budget

No PoE budget

195W

No PoE budget

Forwarding bandwidth

64 Gbps

28 Gbps

64 Gbps

88 Gbps

Switching capacity

128 Gbps

56 Gbps

128 Gbps

176 Gbps

Forwarding rate

95.23 Mpps

41.67 Mpps

95.23 Mpps

130.94 Mpps

Fanless

Yes

Yes

Yes

No

Weight

2.78 kg

2.63 kg

3.68 kg

3.95 kg

Power rating

0.08 kVA

0.08 kVA

0.45 kVA

0.06 kVA

C1000-24T-4X-L is the 24-port data-only model with four 10G SFP+ uplinks, a fanless chassis and a 64 Gbps forwarding class, while C1000-24T-4G-L has the same 24 data ports and fanless chassis but four 1G SFP uplinks at 28 Gbps. Sites that power phones, cameras or access points from the switch need C1000-24P-4X-L, which keeps the 10G uplinks and adds a 195W PoE budget. A closet that needs 48 copper ports moves to C1000-48T-4X-L, which keeps 10G uplinks and no PoE but is fan-cooled. Single IP Management groups 10G models only with other 10G models, so a group built around C1000-24T-4X-L should stay on 4X models. Catalyst 1000 has one universal IOS image and no license tiers to upgrade.

Ordering Checklist

  • Uplink optics: Add SFP+ or SFP modules for the four SFP+ uplink slots, checked in the Cisco Transceiver Module Compatibility Matrix. No module list is given for the switch, and swapping between 1G SFP and 10G SFP+ on a mapped port needs default-interface to clear its configuration.
  • Long-reach 10G optics: Confirm whether SFP-10G-ER or SFP-10G-ER-S will be used in the uplinks. With those modules the ambient limit is 45 C up to 5,000 ft and 40 C up to 10,000 ft.
  • Power cord: Select one AC power cord for the destination country. The chassis ships without a cord and the ordering guide requires one to be selected.
  • Console cable and cord clip: Add CAB-CONSOLE-RJ45 or CAB-CONSOLE-USB for management access, and PWR-CLP to retain the power cord. These are separate line items, so a switch ordered without them arrives with no console cable or cord clip.

Optional Add-ons

Model

Description

CAB-CONSOLE-RJ45

Cisco console cable 6 ft. with RJ-45

CAB-CONSOLE-USB

Cisco USB console cable option

PWR-CLP

Power cable restraining clip for cable management

RCKMNT-1RU-2KX=

Rackmount kit for all 24 and 48 port Catalyst 1000 models

Specifications

Parameter Specification Parameter Specification
Product ID C1000-24T-4X-L Product type Fixed managed Gigabit Ethernet Layer 2 switch
Downlink ports 24 x 10/100/1000 RJ45 data ports Uplink ports 4 x 10G SFP+ uplinks
Default PoE budget Data model with no PoE budget Fan design Fanless 24-port model
Internal power input Single fixed internal AC power supply Voltage 100 to 240V AC in
Frequency 50 to 60 Hz Input current 0.29A to 0.51A
Power rating 0.08 kVA maximum consumption Consumption without PoE 25.68W
Forwarding bandwidth 64 Gbps for 24-port models with 10G uplinks Switching capacity 128 Gbps for 24-port models with 10G uplinks
Forwarding rate 95.23 Mpps for 24-port models with 10G uplinks MAC addresses 16000
Maximum active VLANs 256 VLAN IDs available 4094
Maximum STP instances 64 Maximum SPAN sessions 4
Console port RJ-45 Ethernet console USB-A port 1 USB-A port for storage and Bluetooth console
CPU ARM v7 800 MHz DRAM 512 MB
Flash 256 MB Operating temperature -5 to 50°C at sea level
Operating altitude 10000 ft (3000 m) Operating humidity 5% to 90% at 40°C non-condensing
Dimensions 17.48 x 9.45 x 1.73 in. Weight 2.78 kg
SFP+ thermal note SFP-10G-ER and SFP-10G-ER-S use has lower operating-temperature limits at altitude

Quality Certifications

Customer Reviews

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    Margaret Anderson
    Posted on 24/04/2026
    Verified Buyer
    4.0

    Our risk assessment came up clean. Order placed and delivered without issues. Invoice formatting was a bit different from what our AP system expects, but workable.

    Carolyn Richardson
    Posted on 21/12/2025
    Verified Buyer
    5.0

    Box was sealed with tamper-evident tape. New and authentic.

    Ashley Ivanov
    Posted on 05/12/2025
    Verified Buyer
    5.0

    Layer23 treats you the same after the sale as before. That matters to us.

    G-Man
    Posted on 22/07/2024
    Verified Buyer
    5.0

    Time… is not an issue. Delivery was… satisfactory.

    Kleiner
    Posted on 18/05/2024
    Verified Buyer
    5.0

    Fascinating throughput! The 10G uplinks are performing within expected parameters.

Questions & Answers

  • Can C1000-24T-4X-L be stacked with other switches?

    No. C1000-24T-4X-L does not stack, although up to eight Catalyst 1000 switches with 10G uplinks can be managed under a single IP address. The group forms through the front-panel SFP+ ports, and units with 1G uplinks cannot join it.

  • How far does Layer 3 routing go on C1000-24T-4X-L, and how is it managed?

    C1000-24T-4X-L is a Layer 2 switch whose Cisco IOS image carries advanced Layer 2 features, with no license tiers to upgrade. Management uses the CLI and on-box web UI, the RJ-45 Ethernet console port or a Bluetooth console on the USB-A port.

  • Does C1000-24T-4X-L forward jumbo frames, and at what MTU?

    C1000-24T-4X-L supports a Layer 3 MTU of 9198 bytes and jumbo Ethernet frames of 10,240 bytes. These values apply to all Catalyst 1000 models. Connected servers and uplink peers must use matching MTU values, because a frame over the smallest MTU on the path is dropped.

  • Which ACL and multicast table sizes apply on C1000-24T-4X-L?

    C1000-24T-4X-L holds 600 IPv4 and MAC security ACEs, 600 IPv6 ACEs and 1024 multicast groups, alongside 16,000 unicast MAC addresses. The public datasheet gives 16,000 MAC addresses, so size MAC tables from that value. Security policy is limited to 600 ACEs per address family.

  • Which IPv6 route and SVI limits apply on C1000-24T-4X-L?

    C1000-24T-4X-L supports 64 SVIs, 414 IPv6 direct routes and 128 IPv6 indirect routes, with static routing as the only routing method. Route tables are limited to the 414 direct and 128 indirect IPv6 values, so plan prefix counts within those limits.

  • What ambient temperature range can C1000-24T-4X-L run in at 5,000 ft and 10,000 ft?

    C1000-24T-4X-L runs at ambient temperatures up to 45 C at 5,000 ft (1500 m) and up to 40 C at 10,000 ft. The 50 C figure is short-term only per the datasheet footnote, and cold start needs 0 C. Sustained operation must stay inside the 45 C and 40 C steps.

  • How do I convert an SFP+ uplink on C1000-24T-4X-L into a Single IP Management port?

    Enter switch N hstack-port 1 or 2 followed by the uplink name, save with copy running-config startup-config, then reload C1000-24T-4X-L. Uplinks use the names TenGigabitEthernet 1/0/1-4, and at most two ports can serve as management ports. Mixing SFP and SFP+ as management ports is not supported.

  • Can sFlow run on C1000-24T-4X-L when it is a Single IP Management member?

    No. sFlow cannot be used on member switches in a Single IP Management group that includes C1000-24T-4X-L. Single IP Management is a management feature, not a data-plane stack, with one active unit and the other units as members. The link uses front-panel uplinks, downlink gigabit ports are not supported for it, and no Fast Ethernet model can join.

  • Which egress queue count applies to QoS on C1000-24T-4X-L?

    The datasheet states up to 8 egress queues and 2 thresholds per port on C1000-24T-4X-L, with egress bandwidth control, shaping and priority queuing. Plan QoS policies around 8 queues per port, because queue counts above that figure are not available on this model.

  • What can the USB-A port on C1000-24T-4X-L be used for?

    The USB-A port on C1000-24T-4X-L is limited to USB storage and a Bluetooth dongle for CLI and GUI access. The switch has an ARM v7 800 MHz CPU, 256 MB flash and 512 MB DRAM, measured in megabytes, not megabits, plus a 1.5 MB egress buffer.

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DataSheet Downloads

  • C1000-24T-4X-L Datasheet

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