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Q
What is the Cisco Catalyst 3750 switch?
A
The Cisco Catalyst 3750 is a fixed-configuration, stackable enterprise switch designed for secure, scalable access at the enterprise network edge.
Q
What stacking technology does the Catalyst 3750 use?
A
The Catalyst 3750 uses Cisco StackWise technology, which provides up to 32 Gbps of stack bandwidth and allows up to nine switches to operate as a single logical unit.
Q
How many ports are available on Catalyst 3750 switches?
A
Cisco Catalyst 3750 switches come in 24- or 48-port variants with optional PoE/PoE+ support and Gigabit Ethernet or SFP fiber uplinks.
Q
What is the maximum PoE budget on a 3750 switch?
A
A Catalyst 3750P delivers up to 375 watts of PoE power across all ports, while the 3750G-P offers 480 watts, supporting IEEE 802.3af/at devices.
Q
What performance can I expect from a Catalyst 3750?
A
Catalyst 3750 switches provide up to 32-Gbps StackWise throughput, 24-Mpps forwarding rate, and up to 160-Gbps switching capacity per switch.
Q
Which Cisco IOS features are supported on the 3750?
A
Catalyst 3750 supports Cisco IP Base, IP Services, and Advanced IP Services images, offering enterprise routing, multicast, QoS, and security features.
Q
How does QoS work on the Catalyst 3750?
A
The Catalyst 3750 offers four hardware queues per port, strict priority, weighted random early detection (WRED), and custom policy maps for traffic prioritization.
Q
What security features are built into the 3750 series?
A
Cisco Catalyst 3750 includes 802.1X, Dynamic ARP Inspection, IP Source Guard, port security, RADIUS/TACACS+ authentication, and control plane protection.
Q
Can I perform Layer 3 routing on the Catalyst 3750?
A
Yes. With the IP Services image, the 3750 supports static routing, RIP, OSPF, EIGRP stub, PIM-SM multicast, and VRF-lite for segmentation.
Q
How energy efficient is the Catalyst 3750?
A
Catalyst 3750 features EnergyWise for power management, Cisco Energy Efficient Ethernet, and low-power fans, reducing operational costs and carbon footprint.
Q
What redundancy options are available on the 3750?
A
Catalyst 3750 supports dual redundant power supplies, hot-swappable fans, and Stateful Switchover (SSO) in StackWise for high availability.
Q
What are typical use cases for the Catalyst 3750?
A
Ideal for enterprise access, wiring closets, branch offices, and converged voice/video deployments requiring PoE, stacking, and advanced security.
Q
How do I upgrade the IOS on a Catalyst 3750?
A
Use Cisco’s Software Upgrade Manager (SUM) or CLI commands (archive download-sw) over TFTP/FTP/USB to install and activate the new IOS image.
Q
What management interfaces does the 3750 offer?
A
Management options include a console port, USB micro-B port, out-of-band Ethernet, Cisco Prime Infrastructure, and CLI/WEB GUI via HTTPs.
Q
What is the warranty and support for Catalyst 3750?
A
Cisco offers a limited lifetime hardware warranty, one-year CISCO SMARTnet Technical Support, and optional software maintenance contracts.
Q
What are the physical dimensions of a Catalyst 3750?
A
A Catalyst 3750 is 1.75” (1RU) high, 17.5” deep, 17.5” wide, and weighs approximately 10 lbs (4.5 kg) depending on the model.
