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Name:
WS-C3750X-12S-S
- Description:
- Catalyst 3750X 12 Port GE SFP IP Base
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3 Year Extended Warranty
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WS-C3750X-12S-S Overview
WS-C3750X-12S-S is a high-performance, stackable switch built on advanced Cisco architecture designed for scalability and reliable network performance. It features a versatile design with a focus on fiber connectivity, enabling flexible deployments in medium to large enterprise environments.
This switch offers robust power options with an AC power supply, a compact rack-mount form factor, and 12 SFP ports that support 10/100/1000 Ethernet technology. With seamless stacking capabilities and enhanced switching capacity, the WS-C3750X-12S-S is ideal for access layer deployments and environments that demand high availability and scalability.
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WS-C3750X-12S-S Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | 255W |
| Number Of Ethernet Ports | 12–24 Ports |
| Number Of Downlink Ports | 12 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Fiber |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | WS-C3750X-12S-S |
| Uplink Configuration | 1G |
| IOS | LAN Base |
| POE Support | Non POE |
| SFP Ports | 12 SFP Ports |
| Memory | 4 GB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | N/A |
| Flash Memory | 256 MB |
| Switching Capacity | 160 Gbps |
| Switching Capacity With Stacking | 320 Gbps |
| Product Name | Cisco Catalyst 3750-X Series WS-C3750X-12S-S |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 12 inches |
| Weight | 11.65 lbs |
WS-C3750X-12S-S Use Case
Campus Fiber Aggregation with WS-C3750X-12S-S Catalyst 3750X 12 Port GE SFP IP Base
In enterprise campus backbones, IT deploys the WS-C3750X-12S-S Catalyst 3750X 12 Port GE SFP IP Base at wiring closets to aggregate multiple access-layer switches via 1 Gbps SFP fiber uplinks. StackWise Plus stacking (up to nine units) combined with IOS IP Base features—EIGRP dynamic routing and resilient EtherChannel—delivers sub-50 ms convergence, 20 Gbps redundant bandwidth, and non-disruptive software upgrades. Benefit: high-availability campus connectivity with scalable fiber aggregation and simplified network operations.
Data Center ToR Virtualization with Catalyst 3750X 12 Port GE SFP Switch
In virtualized data centers, network architects select the WS-C3750X-12S-S IP Base switch as a top-of-rack solution for VMware ESXi clusters, connecting hosts via 1 Gbps SFP fiber. Integrated QoS policies, VLAN segmentation and NetFlow analytics ensure deterministic VM-to-VM performance, low latency and granular traffic visibility. StackWise Plus resiliency and hot-swappable SFP modules enable continuous operations with zero downtime. Benefit: optimized application performance, efficient traffic management and rapid fault isolation.
Enterprise IP Surveillance Backbone Leveraging Catalyst 3750X SFP Switch
Security teams implement the WS-C3750X-12S-S Catalyst 3750X 12 Port GE SFP IP Base switch to build a dedicated fiber backbone for IP surveillance across multi-building campuses. Leveraging Cisco IP Base features—port security, DHCP snooping and VLAN-based traffic segregation—camera streams traverse isolated VLANs with guaranteed bandwidth and minimal packet loss. Hot-swappable SFP modules reduce maintenance windows. Benefit: secure, scalable, high-performance video transport and simplified network security management.
Quality Certifications
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Product Comparison Table
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| Depth | 12 inches | 16.1 inches | 11 inches | 15.5 inches | 28.9 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 64 MB | 256 MB | 256 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.73 inches | 1.75 inches | 1.73 inches | 1.73 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Base | IP Base | LAN Base | LAN Base |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | WS-C3750X-12S-S | WS-C3750X-24P-L | WS-C3750X-24S-S | WS-C3750X-48T-S | WS-C3750X-48P-L |
| Media Type Supported | Fiber | Twisted Pair | Fiber | Combo | Twisted Pair / Fiber |
| Memory | 4 GB | 256 MB | 512 MB | 512 MB | 256 MB |
| Number of Downlink Ports | 12 Ports | 24 Ports | 24 Ports | N/A | 48 Ports |
| Number of Ethernet Ports | 12–24 Ports | 12–24 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | POE+ | Non POE | Non POE | POE+ |
| Port/Expansion Slot Details | N/A | 24 PoE ports with 4 SFP uplink ports and FlexStack-Plus stacking support | N/A | 48 x 10/100/1000 Ethernet ports, 4 x 1G SFP uplink ports | 48 Ethernet ports + 4 SFP uplink ports; supports FlexStack-Plus stacking |
| Power Consumption | 255W | N/A | 205W | 235W | 365 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco Catalyst 3750-X Series WS-C3750X-12S-S | Cisco Catalyst WS-C3750X-24P-L | Cisco Catalyst 3750-X 24-Port SFP Switch | Cisco Catalyst 3750-X 48-Port 10/100/1000 Ethernet Switch with LAN Base Software | Cisco Catalyst WS-C3750X-48P-L |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | Yes | No | No |
| SFP Ports | 12 SFP Ports | 4 SFP Ports | 24 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 160 Gbps | 160 Gbps | 160 Gbps | 176 Gbps | 160 Gbps |
| Switching Capacity with Stacking | 320 Gbps | 160 Gbps | 160 Gbps | 480 Gbps | 320 Gbps |
| Uplink Configuration | 1G | 1G | 10G | 1G | 1G |
| Weight | 11.65 lbs | 29 lbs | 27 lbs | 25 lbs | 49.8 lbs |
| Width | 17.5 inches | 17.5 inches | 17 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the Cisco Catalyst 3750X 12 Port GE SFP IP Base (WS-C3750X-12S-S)?
A
The WS-C3750X-12S-S is a fixed-configuration stackable Layer 3 switch featuring 12 Gigabit Ethernet SFP uplink ports and Cisco IP Base software for solid campus access and aggregation.
Q
How many SFP uplink ports are on the WS-C3750X-12S-S?
A
The Catalyst 3750X-12S-S includes 12 Gigabit Ethernet SFP uplink ports, supporting fiber connections up to 1 Gbps for high-speed uplinks.
Q
What is the switching capacity of the Catalyst 3750X-12S-S?
A
The WS-C3750X-12S-S delivers 208 Gbps of switching capacity and a forwarding rate of 154 Mpps, ensuring line-rate performance under full load.
Q
Does the WS-C3750X-12S-S support Cisco StackWise Plus?
A
Yes. The 3750X-12S-S supports Cisco StackWise Plus technology, allowing up to eight switches to operate as a single logical chassis with 64 Gbps stack bandwidth.
Q
Which Cisco IOS features are included with IP Base on the 3750X-12S-S?
A
Cisco IP Base on the WS-C3750X-12S-S includes advanced Layer 2 switching, basic Layer 3 routing (static, RIP, OSPF), QoS, security ACLs and rate limiting.
Q
What power supply options and power consumption does the Catalyst 3750X-12S-S have?
A
The WS-C3750X-12S-S ships with a single internal AC power supply (input 100–240 VAC) and consumes up to 60 W, with an optional redundant power supply module available.
Q
How do I stack multiple WS-C3750X-12S-S switches?
A
Use Cisco StackWise Plus cables to interconnect the stack ports on each WS-C3750X-12S-S; the stack auto-elects a master switch and delivers unified management.
Q
What management interfaces are available on the WS-C3750X-12S-S?
A
The switch offers Cisco IOS CLI via console/SSH, Web-based GUI through Cisco Network Assistant and SNMP for integration with network management systems.
Q
What redundancy and high-availability features does the Catalyst 3750X-12S-S support?
A
Redundancy features include StackWise Plus, hot-swappable power supplies, redundant fans, Graceful Insertion and Removal (GIR) and nonstop forwarding (NSF).
Q
Which SFP transceiver modules are compatible with WS-C3750X-12S-S?
A
Compatible transceivers include Cisco GLC-SX-MM, GLC-LX-SM, GLC-BX, GLC-ZX and SFP-10G modules when used in combination with X2 cages.
Q
What VLAN and MAC address capacity does the Catalyst 3750X-12S-S support?
A
The WS-C3750X-12S-S supports up to 4,096 VLANs and a MAC address table of 32,000 entries for large-scale campus deployments.
Q
What is the typical latency on the WS-C3750X-12S-S?
A
The Catalyst 3750X-12S-S delivers sub-10 µs latency on Gigabit Ethernet ports, enabling real-time application performance and voice/video support.
Q
What are the physical dimensions and weight of the WS-C3750X-12S-S?
A
The switch measures 44.5 cm × 26.4 cm × 4.45 cm (17.5″ × 10.4″ × 1.75″) and weighs approximately 4.3 kg (9.5 lbs), fitting a standard 1RU rack.
Q
What warranty and support options are available for the Catalyst 3750X-12S-S?
A
Cisco offers a limited lifetime hardware warranty, 90-day software updates and various SMARTnet support tiers for extended coverage and rapid RMA service.
Q
What are the ideal use cases for the WS-C3750X-12S-S?
A
This switch is ideal for enterprise campus access, wiring closet aggregation, small data centers and branch office backhaul requiring fiber uplinks.
Q
How do I upgrade the IOS image on the Catalyst 3750X-12S-S?
A
Upload the new IOS image to flash via TFTP/USB/FTP, set the boot variable in the Cisco IOS CLI, and reload the WS-C3750X-12S-S to activate the update.
