Gigabit Ethernet Technology, Introduction | Cisco Systems DGS-1224T

INTRODUCTION

This chapter describes the features of the DGS-1224T and provides some background information about Ethernet/Fast Ethernet/Gigabit Ethernet switching technology.

Gigabit Ethernet Technology

Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and support for CSMA/CD protocol, full duplex, flow control, and management objects, but with a tenfold increase in theoretical throughput over 100-Mbps Fast Ethernet and a hundredfold increase over 10-Mbps Ethernet. Since it is compatible with all 10-Mbps and 100-Mbps Ethernet environments, Gigabit Ethernet provides a straightforward upgrade without wasting existing investments in hardware, software, and trained personnel.

The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to helping solve network bottlenecks that frequently develop as more advanced computer users and newer applications continue to demand greater network resources. Upgrading key components, such as backbone connections and servers to Gigabit Ethernet technology can greatly improve network response times as well as significantly speed up the traffic between subnets.

Gigabit Ethernet enables fast optical fiber connections to support video conferencing, complex imaging, and similar data-intensive applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet, servers outfitted with Gigabit Ethernet NIC’s are able to perform 10 times the number of operations in the same amount of time.

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Cisco Systems DGS-1224T manual Gigabit Ethernet Technology, Introduction

Contents

LinkDGS-1224T Building Networks for People Table of Contents Page Page Purpose Terms/Usage Gigabit Ethernet Technology Introduction Fast Ethernet Technology Switching Technology Ieee 802.1Q Vlan Features IEEE802.1Q Vlan Technical Specifications Flash Memory Ieee 802.3 compliance Emission EMI and Safety Certifications Temperature Storage TemperaturePower consumption Physical & Environment Installation Unpacking Rack Mounting Attach the adhesive rubber pads to the bottom Connecting Network Cable Attach the mounting brackets to the Switch AC Power LED Indicator Front Panel Rear panel of the Switch Rear Panel Power and System LEDs Understanding LED Indicators Blinking Installing the SmartConsole Utility Supported web browsers SmartConsole Utility Features Menu ToolbarPage Definitions of the Discovery List features Discovery ListMonitor List Definitions of the Monitor List functions and terms View trap Device Setting Trap information This space has been intentionally reserved for notes Firmware Upgrade Login Web-based Utility Log in screen Tool Menu Tool Menu Tool Menu Configure Backup and Restore Setup Menu Tool Menu System Reboot System System Setting System Trap Setting System Trap Setting System Port Setting System Port Setting System Snmp Setting System Snmp Setting System Password Access Control System Password Access Control Configuration Jumbo Frame Configuration 802.1Q Vlan Configuration 802.1Q Vlan Default Setting Configuration 802.1Q Vlan Example VIDs Configuration Trunking Configuration Igmp Snooping Configuration Igmp Snooping Configuration Page Configuration Igmp Router port Settings Configuration Igmp Multicast Entry Table Configuration 802.1D Spanning Tree Configuration Spanning TreePage Configuration Port Mirroring Configuration Port Mirroring QoS 802.1p Default Priority Security Safeguard Engine Security Safeguard Engine Security Broadcast Storm Control Security 802.1X Setting Security Broadcast Storm Control QoS 802.1X Setting Page Security Mac Address Table Static MAC Security Static Mac Address Security Mac Address Table Dynamic Forwarding Table Security Dynamic Forwarding Table Monitoring Statistics Monitoring Statistics Monitoring Port Statistics