Cisco Systems 3120 manual Connecting to the 10/100/1000 Ports, Connecting to an Ethernet Port

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Chapter 2 Switch Installation

Connecting to the 10/100/1000 Ports

Connecting to the 10/100/1000 Ports

The switch module 10/100/1000 ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage.

To maximize performance, choose one of these methods for configuring the Ethernet ports:

•Let the ports autonegotiate both speed and duplex.

•Set the port speed and duplex parameters on both ends of the connection. Follow these steps to connect to 10BASE-T, 100BASE-TX or 1000BASE-T devices:

Caution To prevent electrostatic-discharge (ESD) damage, follow your normal board and component handling procedures.

Step 1 When connecting to workstations, servers, routers, and Cisco IP Phones, connect a straight-through cable to an RJ-45 connector on the front panel. (See Figure 2-15.) When connecting to switches or repeaters, use a crossover cable. (See the “Cable and Adapter Specifications” section on page B-4for cable-pinout descriptions.)

Figure 2-15 Connecting to an Ethernet Port

SYST
STAT
DLX
SPD
WS-	MODE
WS-
CBS-
	3020-
		HPQ

17 UID

20

M	IA DE
	TECT S
	FP/R-
	45 P	RTS
		17-20

17

20

17
20x	x
	x
	18x

23x

24x

153386

Note When connecting to 1000BASE-T-compatible devices, be sure to use a twisted four-pair, Category 5 cable.

	Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide
2-22	OL-12246-01

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Contents March Americas HeadquartersPage N T E N T S Setup Accessing the CLI Through the Console Port OL-12246-01 Audience PurposeOrganization Conventions Related PublicationsPreface OL-12246-01 Switch Module Features Overview Product OverviewUID 1 LED Port DescriptionOther Features Switch Module Console PortCisco TwinGig Converter Module 10/100/1000 PortsGigabit Ethernet Module Slots LRMStack LED LEDsSystem LED Color System StatusUID and Health LEDs Stack Master LEDStack Member LED RJ-45 Uplink Port LEDsX2 Module Installed Only the CBS3120X Switch Gigabit Ethernet Module Slot Port LEDsPower Connectors Management OptionsStackWise Plus Ports Using the Device Manager Device ManagerUsing the Command-Line Interface Network ConfigurationsSwitch Installation Preparing for InstallationSafety Warnings Installation Guidelines Verifying Package Contents HP c-Class BladeSystem Enclosure Architecture Rear View of the Blade EnclosureInstalling the Switch Module in the Blade Enclosure StatementOpen the Release Latch Switch Module IP Addresses Switch Installation Onboard Administrator Interconnect Bay Summary Window Using Express Setup Express Setup Advanced Settings TableSetting the Installed Switch Module As the Stack Master Enter switch 1 priorityPlanning and Creating a Switch Stack Refreshing the PC IP AddressStack Cabling Configurations 250304 Connecting to the StackWise Plus Ports Installing Devices in the 10-Gigabit Ethernet Slots Installing a Transceiver or Converter Module 12 Installing X2 Transceiver Modules Removing a ModuleInstalling SFP Modules Installing an SFP Module14 Converter Module with SFP Modules Installed Removing an SFP ModuleConnecting to the 10/100/1000 Ports 15 Connecting to an Ethernet PortPlanning 10/100/1000 Ethernet Port Connections Where to Go Next Device Crossover CableSwitch Installation Where to Go Next Diagnosing Problems Verify the Switch Module Post ResultsBad or Damaged Cable Look at the Switch Module LEDsConfirm the Switch Module Connections Ethernet and Fiber CablesPing the End Device SFP Module Port IssuesPort and Interface Settings Spanning Tree LoopsAutonegotiation and Network-Interface Cards Verify the Switch Module PerformanceSpeed, Duplex, and Autonegotiation Cabling DistanceClearing the Switch Module IP Address and Configuration Replacing a Failed Stack MemberLocating the Switch Module Serial Number 250310OL-12246-01 Physical Dimensions Environmental RangesOL-12246-01 Connector and Cable Specifications Connector SpecificationsConnecting to 10BASE-T- and 100BASE-TX-Compatible Devices Connecting to 1000BASE-T DevicesGigabit Ethernet Module Interfaces Cisco TwinGig Converter Module PortsConsole Port Cable and Adapter SpecificationsGigabit Ethernet X2 Transceiver Module Cable Specifications Microns MHz/km DistanceX2 Product Transmit Power Receive Power Number TransmitDBm Wavelength nm 1000BASE-SX SFP Module Cable SpecificationsTwo Twisted-Pair Cable Pinouts GLC-SX-MMFour Twisted-Pair Cable Pinouts for 1000BASE-T Ports TP3Console Port Adapter Pinouts Switch Console RJ-45-to-DB-9 Port DTEIdentifying a Crossover Cable DeviceSwitch Console RJ-45-to-DB-25 Port DTE OL-12246-01 Accessing the CLI Through the Console Port Connecting to the Console PortOL-12246-01 Figure C-1 Connecting through the Switch Module Console Port Completing the Initial Configuration To configure Snmp now, enter yes These choices appear Numerics CLIIN-2 UID PostLED IN-4IN-5 IN-6

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