Cisco Catalyst WS-C3750X-24T-L Full English Product Description

1. Short Sales Title

2. Official Product Overview

Model Suffix Breakdown

• 3750X: Enhanced 3750 Gigabit stackable platform, StackWise Plus, StackPower, modular power/fan, MACsec capable hardware
• 24: 24 front-panel 10/100/1000BASE-T auto-sensing RJ45 copper downlinks (no PoE hardware)
• T: All copper Gigabit desktop port variant
• L: LAN Base IOS image (pure Layer 2 feature set, no dynamic Layer 3 routing)

LAN Base vs IP Base / IP Services Feature Distinction

1. LAN Base (WS-C3750X-24T-L): Complete Layer 2 suite, static inter-VLAN routing only, no OSPF/EIGRP/BGP/PIM stub/multicast routing, limited IPv6 stub support, max 1000 VLANs, basic QoS and security.
2. IP Base (WS-C3750X-24T-S): All LAN Base features + OSPF, EIGRP stub, PIM stub, HSRP/VRRP, full IPv6 stub routing for routed access.
3. IP Services: Full dynamic routing suite (OSPF multi-area, full EIGRP, BGP, full PIM sparse-dense), PBR, WCCP, full IPv6 dynamic routing, advanced multicast.

Stacking Architecture

• StackWise Plus 32Gbps full-duplex stacking bus: Up to 9 switches unified as one single logical management plane, distributed wire-speed forwarding, cross-stack EtherChannel, cross-stack RSPAN, cross-stack HSRP failover.
• StackPower: Shared power pooling across the stack, power load balancing and power redundancy between stacked switches without external RPS unitsCisco.

Power & Uplink Hardware Design

3. Port & Hardware Specifications

• Downlink Ports: 24 × 10/100/1000BASE-T RJ45 auto-sensing Gigabit copper, auto MDI-X, full-duplex, no PoE circuits
• Rear Uplink Slot: 1 modular uplink bay (user-selectable 4-port SFP Gigabit or 2-port SFP+ 10-Gigabit module, sold separately)
• Local Management Interfaces: RJ45 serial console, USB Type-A storage, USB Type-B console, out-of-band 10/100 Fast Ethernet management port
• Stack Interfaces: Dual StackWise Plus 32Gbps stacking connectors + dual StackPower power stacking ports
• Power Supply: Default single 350W modular AC unit; optional second redundant AC power supply for N+1 redundancy; input 100–240V AC 50/60Hz; max total power draw 93.5W under full loadCisco
• Thermal: Variable-speed redundant hot-swappable fan tray; operating temperature 0°C ~ +45°C, storage -25°C ~ +70°C, relative humidity 10–85% non-condensing
• Front Panel LED Indicators: Per-port link/activity/speed/duplex status; global system fault, power, stack status LEDs
• Mounting: Standard 19-inch 1RU rack-mount brackets included; wall-mount adapter optional, desktop rubber anti-slip feet supplied
• Safety & EMI Certifications: CE, FCC Class A, UL listed, VCCI Class A, RoHS compliant, NEBS Level 3 certified
• Physical Dimensions: 445 mm (W) × 44.5 mm (H, 1RU) × 460 mm (D) / 17.5 × 1.75 × 18.0 inches
• Unit Weight: 4.45 kg (9.8 lbs) with single power supply
• Memory: 256 MB DRAM, 64 MB onboard flash memory for IOS image, startup-config / running-config files
• Switching Fabric: 32 Gbps full-duplex non-blocking stack-wide capacity
• Forwarding Rate: 65.5 Mpps wire-speed Layer 2 forwarding for 64-byte packetsCisco
• MAC Address Table: Up to 12,000 unicast MAC entries
• VLAN Capacity: 1000 active IEEE 802.1Q tagged VLANs (VLAN ID range 1–4094)
• Jumbo Frame Support: Up to 9000 bytes on all Gigabit copper downlinks and modular uplink ports
• MTBF: 200,000 hours under standard office operating conditions
• Warranty: Cisco Enhanced Limited Lifetime Warranty (LLW): Next-business-day (NBD) advance hardware replacement, 90-day complimentary Cisco TAC technical supportCisco

4. Layer 2 + LAN Base IOS Full Feature Set

Core Layer 2 Switching & QoS Core Functions

• Up to 1000 IEEE 802.1Q tagged VLANs, VTPv2 dynamic VLAN synchronization, MSTP 802.1s multiple spanning tree
• Dual trunk encapsulation: Cisco proprietary ISL trunk + IEEE 802.1Q standard trunk on all ports
• IEEE 802.1p CoS / DSCP multilayer QoS, 4 egress priority queues per port; Auto-QoS template dedicated for VoIP voice traffic prioritization
• Gigabit EtherChannel link aggregation (LACP / static mode), up to 8 bundled ports for uplink redundancy and cross-stack load balancing
• Rapid STP (802.1w), UplinkFast, BackboneFast, BPDU Guard, Root Guard to eliminate Layer 2 switching loops
• Port security: Static MAC assignment, sticky dynamic MAC learning, port shutdown violation action
• Per-port broadcast/multicast/unicast storm control to mitigate flooding DoS attacks
• Local SPAN + cross-stack RSPAN port mirroring supported via StackWise Plus stacking
• CGMP (Cisco Group Management Protocol) to suppress redundant multicast flooding to access ports
• Voice VLAN dedicated VoIP separation, Auto QoS automatic voice traffic marking
• Cisco EnergyWise power management to reduce idle endpoint power consumption
• RMON Groups 1,2,3,9 real-time traffic statistics monitoring
• NTP time synchronization, CDP Cisco Discovery Protocol for end-to-end network device visibility
• Embedded web-based Device Manager, Cisco Network Assistant zero-touch stack-wide deployment
• Basic IPv6 dual-stack Layer 2 switching: IPv6 Snooping, IPv6 ACL, IPv6 QoS marking, IPv6 neighbor discovery
• Hardware MACsec 10G wire-speed encryption on SFP+ uplink ports (requires compatible 10G MACsec SFP+ transceivers)Cisco
• Flexible NetFlow Lite for basic traffic visibility (full FNF requires IP Base/IP Services upgrade)

LAN Base Layer 3 Routing Limitations

• Only static inter-VLAN routing supported; no dynamic routing protocols: OSPF, full multi-area EIGRP, BGP, PIM stub / full PIM multicast routing are unavailable.
• Limited IPv6 stub routing only; no full IPv6 dynamic routing suites (OSPFv3/EIGRPv6/BGPv6).
• No policy-based routing (PBR), no WCCP web cache redirection, no DVMRP multicast tunneling.
• HSRP/VRRP gateway redundancy not supported (requires IP Base image).

Enterprise Security Feature Suite

• IEEE 802.1X port-based NAC authentication with RADIUS/TACACS+ AAA remote access control
• SSH v2 encrypted CLI management; SNMPv3 secure monitoring (fallback unencrypted Telnet/SNMPv1/v2c available)
• Combined Layer 2 ingress access control lists for granular inbound traffic filtering
• Time-based ACL policy scheduling for restricted network access hours
• Private VLAN edge isolation to separate host communication within the same broadcast domain
• DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard to block IP/MAC spoofing attacks
• Encrypted startup-config, password encryption for local administrative credentials
• Hardware MACsec encryption for point-to-point uplink traffic security

5. Full Management Interfaces

1. Local Out-of-Band: RJ45 serial console port, USB Type-B console port
2. Secure Remote CLI: SSH v2 encrypted command-line access; fallback unencrypted Telnet
3. In-Band Management: Embedded web GUI, SNMP v1/v2c/v3, CDP, NTP time synchronization
4. Auxiliary Interfaces: USB Type-A flash storage port for config/OS image backup, dedicated out-of-band 10/100 Fast Ethernet management port
5. Stack Management: Single unified IP management plane for entire StackWise Plus stack, zero-touch stack provisioning via Cisco Network Assistant

6. Integrated Security Mitigation Suite

• Multi-level privilege CLI access with encrypted local user password storage
• IEEE 802.1X port authentication to validate endpoints before granting LAN access
• Port MAC address security to restrict unauthorized host connection
• STP BPDU guard and root guard to block rogue switches from altering spanning-tree topology
• Broadcast/multicast storm control to suppress flooding-based denial-of-service threats
• Private VLAN edge to isolate peer hosts on same access VLAN
• DHCP Snooping + DAI ARP Inspection + IP Source Guard to eliminate address spoofing attacks
• SSHv2 and SNMPv3 encryption to secure remote switch management traffic over the LAN
• Manual permanent shutdown of unused ports to reduce unauthorized network attack vectors
• Dedicated management VLAN isolation to segregate switch control plane traffic from end-user data traffic

7. Typical Deployment Scenarios

1. Small/Medium Enterprise Pure Layer 2 Stackable Access Switch: 24 Gigabit copper ports connect office desktop PCs and single-band enterprise Wi-Fi APs; modular SFP/SFP+ uplink modules build redundant fiber trunk links to building core aggregation switches. LAN Base pure Layer 2 feature set meets flat VLAN campus requirements without inter-VLAN routing, unified StackWise Plus stacking enables linear access layer capacity expansion as headcount grows.
2. Small Multi-Classroom K-12 Campus Converged Network: All-copper Gigabit ports link classroom desktop stacks and VoIP classroom phones; modular fiber uplinks connect to central campus data center backbone. MSTP prevents broadcast loop failures across geographic VLAN domains, flat Layer 2 design simplifies K-12 network administration without complex dynamic routing protocols.
3. Medium Regional Branch Wiring Closet Stackable Layer 2 Switch: Universal non-PoE Gigabit access ports connect branch office endpoints and surveillance data aggregators; long-distance single-mode fiber SFP uplink links to corporate headquarters aggregation layer. LAN Base cost-effective Layer 2 feature set satisfies basic branch flat-VLAN access requirements for organizations that centralize all routing at the corporate core.
4. Legacy Distributed Flat Gigabit Access Network Refresh Hardware: Drop-in stackable 3750X replacement for older Catalyst 3750 non-X switches, fully compatible with existing StackWise stacking infrastructure, adds hardware MACsec, StackPower power redundancy and EnergyWise power management for gradual migration to modern Catalyst 9300 access platforms without core router upgrades.

8. Standard Package Contents

Short Commercial Version (For Quotation & Product Catalog)