Chapter 2 Switch Installation

Preparing for Installation

Site Requirements

When determining where to place the switch, be sure to observe these requirements:

Operating environment is within the ranges listed in Appendix A, “Technical Specifications.”

Clearance to front and rear panels is such that

Front-panel indicators can be easily read.

Access to ports is sufficient for unrestricted cabling.

Rear-panel power connector is within reach of an AC power receptacle.

Airflow around the switch and through the vents is unrestricted.

Temperature around the unit does not exceed 113° F (45° C).

Note If the switch is installed in a closed or multirack assembly, the temperature around it might be greater than normal room temperature.

Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures. Make sure that the cabling is safely away from other devices that might damage the cables.

For sites requiring compliance to Telcordia GR-1089-CORE Intra-building Lightning requirements, all 10/100 and 10/100/1000 ports must be connected with shielded cable grounded at both ends.

Verifying Package Contents

Note Carefully remove the contents from the shipping container, and check each item for damage. If any item is missing or damaged, contact your Cisco representative or reseller for support. Return all packing material to the shipping container, and save it.

The switch is shipped with these items:

This Catalyst 3550 Series Hardware Installation Guide

Where to Find the Catalyst 3550 Documentation flyer

Product registration card

AC power cord (AC-powered switches)

One RJ-45-to-DB-9 adapter cable

Mounting kit containing:

Four rubber feet for mounting the switch on a table

Two 19-inch rack-mounting brackets

Four Phillips flat-head screws for attaching the brackets to the switch (Catalyst 3550-12T and 3550-12G switches)

Six Phillips flat-head screws for attaching the brackets to the switch (Catalyst 3550-24, 3550-24-DC, 3550-24-FX, 3550-24PWR, and 3550-48 switches)

Four Phillips machine screws for attaching the brackets to a rack

Catalyst 3550 Switch Hardware Installation Guide

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Cisco Systems 3550 manual Site Requirements, Verifying Package Contents

3550 specifications

Cisco Systems 3550 is a series of enterprise-class multilayer switches that have gained popularity in both enterprise and service provider networks. Introduced in the early 2000s, the 3550 series was designed to meet the increasing demand for advanced networking capabilities, including Layer 2 and Layer 3 switching, making it suitable for various network environments.

A standout feature of the Cisco 3550 is its support for advanced Layer 3 switching capabilities. This means it can perform routing functions similar to traditional routers while maintaining the speed and efficiency of a switch. The 3550 facilitates IP routing, enabling enhanced communication among different subnets without the need for additional routing devices.

The Cisco 3550 series is equipped with a range of ports, typically providing up to 48 Ethernet 10/100 ports and optional Gigabit Ethernet ports, ensuring scalability and flexibility in various network designs. The switches support Power over Ethernet (PoE), allowing the delivery of electrical power through Ethernet cables to connected devices, such as IP phones and wireless access points, streamlining installations and reducing cable management complexity.

Quality of Service (QoS) is another essential feature of the Cisco 3550. The switch supports advanced QoS mechanisms, which provide the ability to prioritize traffic. This is crucial in environments where bandwidth is limited, as it ensures that time-sensitive applications, like VoIP and video conferencing, receive sufficient bandwidth to function optimally.

In terms of security, the Cisco 3550 includes features such as access control lists (ACLs), port security, and VLANs (Virtual Local Area Networks). These features help in segmenting network traffic and preventing unauthorized access to sensitive information, thereby enhancing network security.

The Cisco 3550 is highly regarded for its robustness and reliability, making it a suitable choice for various organizations looking to maintain high availability in their networking environments. Its management capabilities include support for Cisco's IOS software, which offers a command-line interface for configuration, as well as options for SNMP and web-based management tools.

Overall, the Cisco Systems 3550 series is well-regarded for its multilayer switching capabilities, comprehensive feature set, and versatility in meeting the diverse needs of modern networking, making it a favored solution for businesses aiming to build efficient and secure network infrastructures.