Cisco Systems SLM248G4PS manual Chapter Installation, Overview, Pre-Installation Considerations

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Chapter 3

Chapter 3:

Installation

Overview

This chapter will explain how to connect network devices to the Switch. The following diagram shows a typical network configuration.

Cable/DSL

 

 

Uplink via Fiber to

Internet Modem Router

Wireless Access Point

Server

Switch

10/100/1000 10/100 Desktop Notebook

Typical Network Configuration for the SLM248G4PS

When you connect your network devices, make sure you do not exceed the maximum cabling distances, which are listed in the following table:

Maximum Cabling Distances

From

To

Maximum Distance

 

 

 

Switch

Switch or Hub

100 meters (328 feet)

Hub†

Hub

5 meters (16.4 feet)

Switch or Hub†

Computer

100 meters (328 feet)

 

 

 

†A hub refers to any type of 100 Mbps hub. A 10 Mbps hub connected to another 10 Mbps hub can span up to 100 meters (328 feet).

Installation

Pre-Installation Considerations

Fast Ethernet Considerations

If you are using the Switch for Fast Ethernet (100 Mbps) applications, you must observe the following guidelines:

Full-Duplex Considerations

The Switch provides full-duplex support for its RJ-45 ports. Full-duplex operation allows data to be sent and received simultaneously, doubling a port’s potential data throughput. If you will be using the Switch in full-duplex mode, the maximum cable length using Category 5 cable is 328 feet (100 meters).

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e (enhanced Category

5)or Category 6 cable should be used. The Category

5e specification includes test parameters that are only recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3ab standards.

Positioning the Switch

Before you choose a location for the Switch, observe the following guidelines:

•Make sure that the Switch is accessible and that the cables can be connected easily.

•Keep cabling away from sources of electrical noise, power lines, and fluorescent lighting fixtures.

•Position the Switch away from water and moisture sources.

•To ensure adequate air flow around the Switch, be sure to provide a minimum clearance of two inches (50 mm).

•Do not stack free-standing Switches more than four units high.

Placement Options

There are two ways to physically install the Switch, either set the Switch on its four rubber feet for desktop placement or mount the switch in a standard-sized, 19-inch wide, 1U- high rack for rack-mount placement.

24/48-Port 10/100 + 4-Port Gigabit Smart Switch with Resilient Clustering Technology and PoE

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Contents Port or 48-Port 10/100 + Online Resources About This GuideAbout This Guide Icon DescriptionsTable of Contents Snmp Global Parameters Snmp Views Snmp Group Profile SnmpGigabit Ethernet Fiber Optic Cabling Appendix B About Switch StackingAppendix G Contact Information Appendix C Glossary Appendix D SpecificationsIntroduction ChapterFront Panel Switch LEDs and ports are located on the front panelChapter Product Overview Product OverviewBack Panel Power The Power port is where you connect the AC powerSwitch’s LEDs and ports are located on the front panel Product Overview Placement Options Chapter InstallationInstallation Pre-Installation ConsiderationsRack-Mount Placement Hardware InstallationDesktop Placement To set up a stack with six switches, follow these steps Uplinking the SwitchConfiguring Stack Mode Connect port G1 on Unit 3 to port G2 on Unit Power off the new unit 5 the former master unitConnect port G1 on Unit 2 to port G2 on Unit Login screen appears. Proceed to the Login section below Chapter Configuration Using Console InterfaceUsing telnet System Configuration Menu How to Use the Console InterfaceLogin Switch Main MenuSystem Information Management SettingsIP Configuration User & Password SettingsSecurity Settings Http File Management Restore System Default SettingsReboot System Stack ConfigurationPort Status Menu Port ConfigurationLogout System ModePoE Settings HelpDevice Information Chapter Configuration Using Web-based UtilitySetup Setup SummaryClicking on a port displays the Port Configuration screen Setup ZoomSetup Network Settings Orange The administrator has closed down this portDaylight Saving Setup TimeSet Time Local TimeSntp Servers Setup Stack ManagementPort Management Port Settings Port ManagementPort Management Port Settings Port Configuration Port Management Link Aggregation LAG ConfigurationPort Management Lacp Port Management PoE Power SettingsVlan Table Vlan Management Port SettingVlan Management Vlan Management Create VlanJoin Vlan to Port Vlan Management Port to VlanVlan Management Vlan to Port Statistics Rmon History StatisticsStatistics Rmon Statistics Rmon History Table Rmon HistoryLog Table Alarm Table Statistics Rmon AlarmsAdd Alarm Statistics Interface Statistics Statistics Rmon EventsStatistics Port Utilization Parameters Security 802.1x SettingsSecurity Ethernet-likeSecurity Port Security Setting TimerSecurity Storm Control Security Management Access ListBroadcast Only Counts only Broadcast traffic QoSSecurity Radius CoS Default QoS CoS SettingsQoS Queue Settings CoS SettingsQoS Bandwidth QoS Dscp SettingsQoS Basic Mode Spanning Tree Global STP Global SettingSpanning Tree Spanning Tree STP StatusSpeed Displays the speed at which the port is operating Spanning Tree STP Port SettingsBridge Settings Multicast Bridge Multicast Vlan Igmp SettingsMulticast Multicast Igmp SnoopingSnmp Global Parameters Multicast Bridge Multicast Forward AllSnmp Group Profile Snmp ViewsUser Name Provides a user-defined local user list Snmp Group MembershipSnmp Communities Advanced Table Snmp Notification FilterSnmp Notification Recipient Base TableLocal User Edit AdminAdmin User Authentication User AuthenticationSecure The entry is defined for locked ports Admin Static AddressAdmin Dynamic Address Clear Table If selected, this clears the MAC Address table Admin Port MirroringAdmin Cable Test QueryAdmin Save Configuration Admin Factory Default Admin Firmware UpgradeAdmin Reboot Admin Memory Logs Admin LoggingAdmin Server Logs Logout Admin Flash LogsFiber Optic Cabling Appendix aAppendix a About Gigabit Ethernet Fiber Optic Cabling Gigabit EthernetStack Building Quick Start Appendix B About Switch StackingAbout Switch Stacking Appendix BUnit ID Allocation Advanced StackingStack Resiliency Unit IDsMaster Election Stack Units Startup ProcessMaster Discovery Replacing a Failed Stack Member in a Running Stack Unit and Port ConfigurationUser Controls Stacking ExamplesStack Master Failure and Replacement Splitting a Stack Subgroup Contains Both Master Unit and Backup Master UnitBoth Stacks Kept Running During Insertion Merging Two StacksInserting Too Many Units Stacking Cable FailureGlossary Appendix CAppendix C Glossary Glossary Mail protocol on the Internet Packet a unit of data sent over a networkAppendix C Appendix D Appendix D SpecificationsSpecifications Management Vlan Class of Service Port-based 802.1p Vlan priority-basedPower in compliance with Ieee DimensionsExclusions and Limitations Warranty InformationObtaining Warranty Service Appendix ETechnical Support Warranty InformationRegulatory Information Appendix FRegulatory Information Appendix F Norsk Norwegian Miljøinformasjon for kunder i EU Appendix F Contact Information Appendix G
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