Features, Summary of PowerConnect Models | Dell 28XX instruction

Summary of PowerConnect Models

The following table summarizes the PowerConnect models.

Table 1-1. PowerConnect Models

Model	Copper Ports/	Optical Ports/	RS232 serial port -	Fans
	RJ-45 Connectors	GbE	baud rate is 9600 bps

PowerConnect 2808	8 built-in 10/100/1000 Base-T ports	none
PowerConnect 2816	16 built-in 10/100/1000 Base-T ports	none
PowerConnect 2824	24 built-in 10/100/1000 Base-T ports	2 SFP (combo)
PowerConnect 2848	48 built-in 10/100/1000 Base-T ports	4 SFP (combo)

Internal console port	none
External console port	none
External console port	1
External console port	32

Features

General Features

Management Modes

The device supports the following modes:

•Managed Mode — Provides switch management through the web interface.

•Unmanaged Mode — In this mode, the device operates as a hub with default configuration, and configuration cannot be changed.

•Secure Mode — This mode keeps the existing configuration active, but it prevents users from making configuration changes by removing the IP address of the device so that it becomes inaccessible for configuration.

For more information about the management modes, see "Management Modes" on page 49.

Head of Line Blocking Prevention

Head of Line (HOL) blocking results in traffic delays and frame loss caused by traffic competing for the same egress port resources. HOL blocking queues packets, and the packets at the head of the queue are forwarded before packets at the end of the queue. By default, the device is configured so that the HOL blocking prevention mechanism is active at all times, except when QoS (Quality of Service), Flow Control or Back Pressure is active on a port where the HOL blocking prevention mechanism is disabled on the whole system.

Back Pressure Support

On half-duplex links, the receiving port prevents buffer overflows by occupying the link so that it is unavailable for additional incoming traffic. The user may enable or disable this feature on a per-port basis. The default status on all ports is set to OFF.

Dell PowerConnect 28xx Systems User Guide

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Dell 28XX manual Summary of PowerConnect Models, General Features

Contents

User Guide March 4 Contents Installing the PowerConnect Device Using Dell OpenManage Switch Administrator Manually Allocating IP Addresses Static Hosts 144 169 System Description PowerConnect PowerConnect 2816 Front Panel General Features FeaturesSummary of PowerConnect Models AutoMDI/MDIX Support Virtual Cable Testing VCTAuto Negotiation Jumbo Frames Support Layer 2 Features MAC Address Supported Features Vlan Supported Features Spanning Tree Protocol Features Ethernet Switch Management Features Class of Service CoS Features PowerConnect 28xx Front and Back Panel Port Description Switch Port Configurations PowerConnect 2808 Back Panel PowerConnect 2824 Front Panel PowerConnect 2824 Back Panel LED Definitions Physical Dimensions Port LEDs Power LEDManaged Mode LED Fan LED 2824/2848 only SFP Port LED Managed Mode ButtonSwitch Ventilation Fan RJ-45 Connections for 10/100/1000BASE-T Ports Cables, Port Connections, and Pinout Information1000BASE-T Cable Requirements SFP Pin Connections Pin No Use SFP Ports Internal Power Supply Connector Power Connectors Installation Precautions Installing the PowerConnect Device Unpacking the Device Package ContentsSite Requirements Unpacking Overview Device Rack InstallationMounting the Device Bracket Installation for Rack Mounting Installing on a Flat Surface Bracket Installation for Wall Mounting Installing on a Wall Mounting Device on a Wall Connecting the Terminal to the Device Connecting the DeviceConnecting the Device to the Network Connecting a Device to a Power Supply RJ-45 Connections for 10/100/1000BaseT Ports Port Connections, Cables, and Pinout Information Ports, Connectors and Cables Port/Interface Back Pressure Port Default SettingsAuto-Negotiation Flow Control Following table gives the port default settings Switching Port Default Settings 43+ Enter Wizard Management Modes Unmanaged Mode In this mode Transitioning Between Management Modes Transitioning Between Modes Restore Saved Configuration Initial Configuration Through the Set-up Wizard Booting the Device Managed Mode Welcome to Dell Easy Setup Wizard Wizard Step Wizard Step Basic Configuration Initial Configuration Through the Web Web management IP Interface Parameters Retrieving an IP Address From a Dhcp Server Startup Menu Erase Flash File Erasing the Device ConfigurationSoftware Download System Image Download Password RecoverySoftware Download Through Tftp Server Boot Image Download Understanding the Interface Using Dell OpenManage Switch Administrator Information Buttons Using the Switch Administrator Buttons Device Management Buttons Access LevelsStarting the Application Dell PowerConnect 28xx Systems User Guide Viewing Device Information Defining General Device Information Asset Defining System Information Initiating a Telnet Session Viewing the VersionsClick Apply Changes Resetting the Device Resetting the Device Entering Secure Mode Entering Secure Mode Defining IP Interface Parameters Setting static IP Interface parametersDefining Device IP Addresses No Cable Running Cable DiagnosticsViewing Copper Cable Diagnostics Displaying Virtual Cable Test Results Table Viewing Optical Transceiver DiagnosticsPerforming a Cable Test Open the Integrated Cable Test Click Test Now Optical Transceiver Diagnostics Open the Optical Transceiver Diagnostics Click Show All LOSLoss of Signal Loss of signal TXTransmitter Fault Transmitter fault Defining the Local User Databases Password 0-64 Characters User-defined passwordAssigning Access Rights to a User Managing Device Security Displaying the Local User Table Defining a New User Deleting Users Configuring Radius Global Parameters Add Radius Server page opens Open the Radius SettingsDefining Radius Parameters Adding a Radius Server Displaying the Radius Server List Modifying the Radius Server Settings Deleting a Radius Server for the Radius Servers List Defining Snmp Parameters Enabling Snmp Notifications Enabling Authentication NotificationsDefining Snmp Global Parameters Add Snmp Community page opens Defining CommunitiesDefining a New Community Open the Snmp Community Deleting Communities Displaying all Communities 19. Notification Recipients Defining Snmp Notification Recipients Displaying Notification Recipients Tables Adding a new Trap RecipientsOpen Notification Recipients Add Notification Recipients page opens Downloading Files Managing Files 21. File Download From Server Firmware Download Open the File Download From Server Configuration DownloadUploading Files Downloading Files Open the File Upload to Server Restoring Default SettingsRestoring Default Settings Uploading Files → Dhcp Server → Dhcp Server Properties in the tree view Defining Dhcp Server SettingsConfiguring Dhcp Properties 24. Dhcp Server Properties Enabling the Dhcp Server Defining Network Pool Click Apply Changes. The server is enabled Excluding Addresses Deleting Excluded Addresses Adding an Excluded AddressOpen the Excluded Addresses 28. Static Hosts Manually Allocating IP Addresses Static Hosts Add Static Host page opens Domain Name- SpecifiesAdding a new Static Host Click Show All Static Hosts Table page opens Displaying Static Hosts Tables Deleting Static Hosts Address Binding Configuring General Device Parameters Defining Advanced Settings Advanced Port Based Authentication Configuring Network SecurityPort Based Authentication → Port Based Authentication Configuring Port Based Authentication Displaying the Port Based Authentication Table Select an interface in the Port Based Authentication Table Copying Parameters in the Port Based Authentication Table Multiple Hosts Configuring Advanced Port Based Authentication Multiple Hosts Table Displaying the Multiple Hosts Table Click Show All Authenticated Users Table opens Authenticating UsersDisplaying the Authenticated Users Table 100 Authenticated Users Table 101 Configuring PortsDefining Port Parameters 102 Modifying Port Parameters Displaying the Port Configuration TableAggregating Ports Defining Port Parameters 104 LAG Configuration Modifying LAG Parameters Open the LAG ConfigurationCurrent Flow Control Defining LAG Parameters 106 Configuring Green EthernetDisplaying the LAG Configuration Table 107 11. Green Ethernet Configuration 108 Open the Green Ethernet ConfigurationEnabling Storm Control Enabling Green Ethernet on the Device 109 Enabling Storm Control on the DeviceDisplaying the Storm Control Table Click Show All Storm Control Table opens 110 Defining Port Mirroring Sessions 111 Adding a Port Mirroring SessionOpen the Port Mirroring Add Source Port page opens 112 Configuring Address TablesViewing Dynamic Addresses Deleting a Copy Port from a Port Mirroring Session 113 Redefining the Aging TimeOpen the Dynamic Address Table Sorting the Dynamic Address Table Configuring the Spanning Tree ProtocolDefining STP Global Settings Querying the Dynamic Address Table 115 16. STP Global Settings Modifying STP Global Parameters Open the STP Global SettingsSelect Enable in the Spanning Tree State field Defining STP Global Parameters 117 Defining STP Port Settings 118 Ethernet Fast Ethernet Gigabit Ethernet Displaying the STP Port Table Click Apply Changes. STP is enabled on the portEnabling STP on a Port Modifying STP Port Properties 120 Defining STP LAG Settings 121 122 Configuring Rapid Spanning TreeOpen the STP LAG Settings Modifying the LAG STP Parameters 123 Enabling Rstp 124 Configuring VLANsDefining Vlan Members 125 Adding New VLANsOpen the Vlan Membership Create New Vlan page opens 126 Vlan Port Membership TableModifying Vlan Membership Groups Deleting Vlan Membership Groups 127 Assigning Ports to a Vlan GroupDeleting a Vlan 128 Defining Vlan Ports SettingsAssigning Port Settings Open the Vlan Port Settings 129 Defining Vlan LAG SettingsDisplaying the Vlan Port Table 130 Assigning Vlan LAG SettingsOpen the Vlan LAG Setting Displaying the Vlan LAG Table 131 Aggregating Ports Open the LAG Membership Configuring a Port to a LAGMulticast Forwarding Support Defining LAG Membership 133 Defining Multicast Global ParametersEnabling Bridge Multicast Filtering on the Device 134 Adding Bridge Multicast Address MembersEnabling Igmp Snooping on the Device Define the Vlan ID and New Bridge Multicast Address fields Adding Bridge Multicast AddressesOpen the Bridge Multicast Group Add Bridge Multicast Group page opens 136 Defining Ports to Receive Multicast ServiceAssigning LAGs to Receive Multicast Service Assigning Multicast Forward All Parameters Port Control Definition 137 138 Attaching a Port to a Multicast Router or SwitchAttaching a LAG to a Multicast Router or Switch Open Bridge Multicast Forward All 139 Igmp Snooping 140 Displaying the Igmp Snooping Table 141 Viewing Rmon StatisticsViewing Rmon Statistics Group Open the Rmon Statistics Group Viewing ChartsViewing the CPU Utilization Viewing Interface Statistics CPU Utilization 143 144 VPT Tag Classification InformationCoS Value Forwarding Queue Values 145 CoS ServicesDscp Value Forwarding Queue Values Defining CoS Global Parameters Defining CoS SettingsEnabling Quality of Service 147 Defining QoS Interface SettingsSelecting Trust Displaying the QoS Interface Settings Table Defining Queue SettingsAssigning QoS/CoS settings for an interface Open the Interface Settings 149 Defining the Queue SettingsOpen the QoS Queue Settings Open the CoS to Queue Mapping Table Mapping CoS Values to QueuesMapping a CoS value to a Queue 151 Restoring default valuesMapping Dscp Values to Queues Mapping a Dscp value and assigning priority queue Open the Dscp to Queue Check the Restore Defaults checkbox 153 Accessing the Device Through the CLIConsole Connection Telnet Connection 154 Using the CLICommand Mode Overview User Exec Mode 155 Privileged Exec ModeGlobal Configuration Mode Port Channel Mode Interface Configuration ModeInterface Mode Vlan Mode Command copy CLI Commands Debug-mode Command debug-modeCommand do Character Description Command exit configuration Command end 160 Command exit ExecCommand help Command interface ethernet Interface vlan vlan-id Command interface port-channelCommand interface vlan Interface port-channel port-channel-number 162 Command ip addressNo ip address 163 Command pingDefaults User Guidelines 164 165 Command show tech-support commandShow tech-support config memory Show clock show system show version 166 Command snmp-server community 167 Command usernameDefault 168 169 170 171 172 173 174 175 176 177 178 Index Page Page 182 183 184