Cisco Catalyst 3750 WS-C3750G-24TS-E1U Cisco Catalyst switch

Brand: Cisco | Category: Network Switches

SKU: CSC-WS-C3750G-24TS-E1U | Part #: WS-C3750G-24TS-E1U | MPN: WS-C3750G-24TS-E1U

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When network architects specify switching fabric for enterprise data centres, financial trading floors, or large-scale AI compute clusters, forwarding latency becomes a non-negotiable design parameter. The Cisco Catalyst 3750G WS-C3750G-24TS-E1U delivers wire-rate packet forwarding at 23.8 million packets per second across its 32 Gbps backplane, achieving the deterministic, low-latency performance required in spine-leaf topologies where microsecond delays cascade through entire network stacks. Unlike store-and-forward architectures that introduce variable packet transit times, Cisco's cut-through forwarding on this platform processes frames at the ingress port and begins transmission to the egress port within nanoseconds, making the 3750G suitable for both traditional data-centre oversubription patterns and the demanding timing constraints of high-frequency trading systems that cannot tolerate buffer-induced jitter.

The WS-C3750G-24TS-E1U ships as a 1U rack form factor with 24 Gigabit Ethernet ports (10/100/1000BASE-T) plus four SFP uplink slots for 1000BASE-X connectivity. This port density strikes a practical balance for enterprises building modular switching blocks without consuming excessive cabinet space—a critical concern in co-location facilities and campus networks where real estate costs scale directly with rack units. Cisco's StackWise technology lets network engineers cascade up to nine of these chassis together, creating a unified switching pool with a 32 Gbps stacking bus that synchronises MAC address tables, VLAN configurations, and management state across all members. For network operations teams managing thousands of VLANs or implementing fine-grained traffic segmentation, this approach eliminates the complexity of inter-switch link (ISL) protocols and simplifies failover scenarios where a single logical switch entity can survive member-level hardware faults without requiring manual intervention.

Enterprise network engineers and data-centre operations staff favour the Catalyst 3750G for Layer 2 and Layer 3 hybrid deployments because Cisco ships the unit with IP Services IOS, bundling static routing, OSPF, EIGRP, BGP, and policy-based routing (PBR) in a single image. The 12,000-entry hardware routing table and equivalent MAC address capacity handle mid-to-large campus networks and multi-tenant data-centre fabrics without forcing lookups into DRAM, preserving the forwarding rate across the full range of supported routing protocols. Security operations benefit from hardware-accelerated dynamic ARP inspection, DHCP snooping, IP source guard, and private VLAN support—functions that detect and prevent common Layer 2 attacks (ARP spoofing, DHCP starvation, rogue DHCP servers) without consuming CPU cycles. The platform supports IEEE 802.1x port-based access control and integrates with RADIUS and TACACS+ authentication backends, allowing organisations to enforce user-based network access policies at the switch edge without deploying separate access servers.

Quality-of-service handling on the WS-C3750G-24TS-E1U relies on hardware-based DSCP classification and policing rather than software queuing, ensuring that voice, video, and real-time workloads meet their SLA targets even during network congestion. Each egress port maintains four hardware queues, enabling administrators to allocate guaranteed bandwidth to critical applications while protecting best-effort traffic from starvation during link saturation. The Cisco platform carries native IPv6 dual-stack support alongside full IPv4 routing and stateless firewall capabilities, eliminating the need for parallel network infrastructure in organisations transitioning to IPv6-only or hybrid IPv4/IPv6 addressing schemes. Management occurs through SSH v2 and HTTPS (not Telnet or plain HTTP), SNMP versions 1, 2c, and 3 for monitoring and automation, plus RMON for granular per-port traffic analysis. The unit consumes approximately 65 watts under typical loads, drawing from a universal AC input (100–240V, 50–60 Hz), making it energy-efficient enough for always-on deployment in carrier hotels and remote edge locations where power budgets remain tight.

Omnixon Global stocks the Cisco Catalyst 3750G WS-C3750G-24TS-E1U across our Dubai distribution hub, serving network architects and IT procurement teams throughout the GCC, South Asia, and Europe who require immediate availability of proven enterprise switching platforms. Our technical team can assess your Layer 2/3 fabric topology, validate stack configurations, and coordinate Cisco support entitlements before deployment. Contact us with your network specifications and quantity requirements to request a formal quote.

Performance Specifications & Stacking Topology

• 24 Gigabit Ethernet (10/100/1000BASE-T) ports plus 4 SFP uplink slots; 32 Gbps switching fabric with 23.8 Mpps forwarding rate
• StackWise stacking bus supports up to 9 chassis (32 Gbps aggregated bandwidth) in a single logical switch for failover resilience and simplified management
• 12,000-entry hardware MAC address table and 12,000-entry IPv4 routing table; supports OSPF, EIGRP, BGP, and static routing without DRAM lookup penalties
• Hardware-based QoS with DSCP classification, marking, and policing; four egress queues per port ensure deterministic latency for critical traffic classes
• IEEE 802.1x, Dynamic ARP Inspection, DHCP Snooping, IP Source Guard, and private VLAN isolation; RADIUS and TACACS+ authentication integration for enterprise access control
• Native IPv6 dual-stack routing and stateless firewall functionality; SNMP v1/v2c/v3 and RMON for network monitoring and automation
• 1U rack-mountable form factor; 65W typical power consumption (AC 100–240V, 50–60 Hz); operating range 0–45°C supports both data-centre and field deployments