Allied Telesis AT-9000/28POE, AT-9000/12POE manual Slow Performance Between Switch and Host Device

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Chapter 6: Troubleshooting

Slow Performance Between Switch and Host Device

If network performance between a twisted-pair port on the switch and a host device is slow, there might be a duplex mode mismatch between the port and the host device. This occurs when a twisted-pair port using Autonegotiation is connected to a device with a fixed duplex mode of full duplex.

If this is the cause of the problem, adjust the duplex mode of the port on the host device or switch so that both ports are using the same duplex mode.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Snmp Figures Figures Tables Tables Preface Document Conventions Contacting Allied Telesis AT-9000 Gigabit Ethernet Switch Installation Guide Chapter OverviewAT-9000 Series Models Switch Models and FeaturesRS-232 Console Port Power over EthernetManagement Methods AT-9000/12POE Switch AT-9000 Series Gigabit Ethernet SwitchesAT-9000/12POE Switch Front and Rear Panels SFP/RJ45 AT-9000/28 SwitchAT-9000/28POE Switch Front and Rear Panels AT-9000/28POE SwitchAT-9000/28SP Switch Front and Rear Panels AT-9000/28SP SwitchAT-9000/52 Switch Front and Rear Panels AT-9000/52 Switch10/100/1000Base-T Twisted-Pair Ports Wiring Configuration Maximum Distance 10Mbps 100Mbps 1000Mbps Cable Type Non PoE PoE+ Power Over Ethernet Powered Device Classes Port Prioritization Wiring Implementation 10/100/1000 SFP Slot Base-T Port SFP SlotsOverview Combo Ports Overview Console Port LEDs Mode LED Select ButtonLink LED Mode SFP LINK/ACT LEDs Front Panel ecoFriendly Button EcoFriendly ButtonPower Supplies Power Connectors AT-9000 Gigabit Ethernet Switch Installation Guide Beginning the Installation Installation Procedures Reviewing Safety Precautions AT-9000 Gigabit Ethernet Switch Installation Guide Beginning the Installation AT-9000 Gigabit Ethernet Switch Installation Guide Selecting a Site Unpacking the Switch Installing the Switch on a Table or Rack Installing the Switch on a Table or Desktop Installing the Switch in a Rack Attaching Brackets for Rack Mounting Mounting the Switch in a Rack AT-9000 Gigabit Ethernet Switch Installation Guide Cabling the Networking Ports AT-9000 Gigabit Ethernet Switch Installation Guide Powering On the Switch Connecting the AC Power Cord Applying AC PowerPowering On the Switch Starting a Local Management Session Powering On the Switch Local Management Telnet Management Management MethodsSecure Shell Management Web Browser Management AT-9000 Gigabit Ethernet Switch Installation Guide Adding a Management IP Address Awplus enable Troubleshooting Power LED Is Off Twisted-Pair Port Link LED Is Off AT-9000 Gigabit Ethernet Switch Installation Guide Cannot Establish a Local Out-of-Band Management Session All Port LEDs Are Off Power Over Ethernet Fiber Optic Transceivers Slow Performance Between Switch and Host Device AT-9000 Gigabit Ethernet Switch Installation Guide Physical Specifications Technical SpecificationsAppendix a Power Specifications Environmental SpecificationsQuality and Reliability Safety and Electromagnetic Emissions CertificationsCompliance Standards Pin Signal 10/100/1000Base-T Twisted-Pair Port ConnectorsConsole Port Pinouts Pin Pair SignalAT-9000 Gigabit Ethernet Switch Installation Guide