Mapping Dscp Values to Queues | Dell 28XX guide

Mapping DSCP Values to Queues

The DSCP to Queue page provides fields for defining output queue to specific DSCP fields. For the list of the DSCP default queue settings, see "DSCP to Queue Mapping Table Default Values" on page 148. To open the DSCP to Queue page, click Quality of Service→ CoS Global Parameters→ DSCP to Queue in the tree view.

Figure 9-6. DSCP to Queue

•DSCP In — The values of the DSCP field within the incoming packet.

•Queue — The queue to which packets with the specific DSCP value is assigned. The values are 1–4, where one is the lowest value and four is the highest.

Mapping a DSCP value and assigning priority queue:

1Open the DSCP to Queue page.

2Select a value in the DSCP In column.

3Define the Queue fields.

4Click Apply Changes.

The DSCP is overwritten, and the value is assigned to a forwarding queue.

Restoring default values:

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Dell 28XX Mapping Dscp Values to Queues, Mapping a Dscp value and assigning priority queue, Restoring default values 154

Contents

User Guide December Contents Port Connections, Cables, and Pinout Information Retrieving an IP Address From a Dhcp Server Using Dell OpenManage Switch Administrator Using the Switch Administrator Buttons 103 Configuring the Spanning Tree Protocol 116114 134 126133 144 158 161 Introduction PowerConnectSystem Description PowerConnect 2816 Front Panel Summary of PowerConnect Models FeaturesGeneral Features Jumbo Frames Support Virtual Cable Testing VCTAuto Negotiation AutoMDI/MDIX Support MAC Address Supported Features Layer 2 Features Vlan Supported Features Spanning Tree Protocol Features Class of Service CoS Features Ethernet Switch Management Features PowerConnect 28xx Front and Back Panel Port Description Switch Port ConfigurationsHardware Description PowerConnect 2808 Back Panel PowerConnect 2824 Front Panel PowerConnect 2824 Back Panel Physical Dimensions LED Definitions Fan LED 2824/2848 only Power LEDManaged Mode LED Port LEDs Switch Ventilation Fan Managed Mode ButtonSFP Port LED 1000BASE-T Cable Requirements Port Default Settings Connector Port/Interface CableCables, Port Connections, and Pinout Information RJ-45 Connections for 10/100/1000BASE-T Ports SFP Ports SFP Pin Connections Pin No Use Power Connectors Internal Power Supply Connector Installing the PowerConnect Device Installation Precautions Unpacking Package ContentsSite Requirements Unpacking the Device Mounting the Device Device Rack InstallationOverview Installing on a Flat Surface Bracket Installation for Rack Mounting Installing on a Wall Bracket Installation for Wall Mounting Connecting the Device Connecting the Device to the Network Connecting the Terminal to the Device Connecting a Device to a Power Supply Connecting to Console Port Port Connections, Cables, and Pinout Information Ports, Connectors and Cables Port/InterfaceRJ-45 Connections for 10/100/1000BaseT Ports Flow Control Port Default SettingsAuto-Negotiation Back Pressure Switching Port Default Settings Port Default Settings Function Dell PowerConnect 28xx Systems User Guide Starting and Configuring the Device Booting the Device Managed Mode Installation and Configuration Flow Initial Configuration Managed Mode Welcome to Dell Easy Setup Wizard Wizard Step Wizard Step Advanced Configuration Finally, setup the default gateway Startup Menu Procedures Startup ProceduresRetrieving an IP Address From a Dhcp Server Software Download Erase Flash File Software Download Through Tftp Server Erasing the Device ConfigurationPassword Recovery System Image Download Boot Image Download Default Values Management Modes Transitioning Between Modes Transitioning Between Management Modes Returning to Managed Mode Restore Saved Configuration Dell PowerConnect 28xx Systems User Guide Using Dell OpenManage Switch Administrator Understanding the Interface Device Representation Interface Components Name Information Buttons Using the Switch Administrator ButtonsLed Indicators Component Name Information Buttons Description Device Management Buttons Access LevelsStarting the Application Device Management Buttons Description Dell PowerConnect 28xx Systems User Guide Dell PowerConnect 28xx Systems User Guide Defining General Device Information Configuring System InformationViewing Device Information Asset Click Apply Changes Viewing the VersionsDefining System Information Initiating a Telnet Session Resetting the Device Resetting the Device Entering Secure Mode Entering Secure Mode Defining Device IP Addresses Defining IP Interface Parameters Open the IP Interface Parameters Set Dhcp to Enable Running Cable DiagnosticsViewing Copper Cable Diagnostics Setting static IP Interface parameters Performing a Cable Test Integrated Cable Test for Copper Cables Viewing Optical Transceiver Diagnostics Displaying Virtual Cable Test Results Table Open the Optical Transceiver Diagnostics Click Show All Managing Device Security Password 0-64 Characters User-defined passwordAssigning Access Rights to a User Defining the Local User Databases Displaying the Local User Table Defining a New UserDeleting Users Configuring Radius Global Parameters Click Show All Local User Table opens Select a User Name Defining Radius Parameters Open the Radius SettingsAdding a Radius Server Add Radius Server page opens Modifying the Radius Server SettingsDisplaying the Radius Server List Click Show All Radius Servers List page opens Defining Snmp ParametersDeleting a Radius Server for the Radius Servers List Defining Snmp Global Parameters Enabling Authentication NotificationsEnabling Snmp Notifications Open the Snmp Community Defining CommunitiesDefining a New Community Add Snmp Community page opens Displaying all Communities Deleting Communities Defining Snmp Notification Recipients 19. Notification Recipients Add Notification Recipients page opens Adding a new Trap RecipientsOpen Notification Recipients Displaying Notification Recipients Tables Downloading Files Managing FilesClick Show All Notification Recipients Tables page opens Configuration Download Firmware Download Downloading Files Uploading FilesOpen the File Download From Server Restoring Default Settings Defining Dhcp Server SettingsRestoring Default Settings Uploading Files Configuring Dhcp Properties → Dhcp Server → Dhcp Server Properties in the tree view Defining Network Pool Click Apply Changes. The server is enabledEnabling the Dhcp Server 25. Network Pool Excluding Addresses Open the Excluded Addresses Adding an Excluded AddressDeleting Excluded Addresses Manually Allocating IP Addresses Static Hosts 28. Static Hosts Adding a new Static Host Add Static Host page opens Displaying Static Hosts Tables Click Show All Static Hosts Table page opens Configuring Address Binding Deleting Static Hosts Defining Advanced Settings Configuring General Device Parameters Update with your book title Port Based Authentication Configuring Device SwitchingConfiguring Network Security Advanced Port Based Authentication Configuring Port Based Authentication → Port Based Authentication Update with your book title Displaying the Port Based Authentication Table Copying Parameters in the Port Based Authentication Table Select an interface in the Port Based Authentication Table Configuring Advanced Port Based Authentication 100 Displaying the Multiple Hosts Table 101 Click Show All Authenticated Users Table opens Authenticating UsersDisplaying the Authenticated Users Table 102 Defining Port Parameters Configuring Ports103 104 Defining Port Parameters Displaying the Port Configuration TableAggregating Ports Modifying Port Parameters LAG Configuration 106 Modifying LAG Parameters Displaying the LAG Configuration TableDefining LAG Parameters 107 LAG Configuration Table opens Configuring Green Ethernet108 11. Green Ethernet Configuration 109 Enabling Green Ethernet on the Device Open the Green Ethernet ConfigurationEnabling Storm Control 110 Click Show All Storm Control Table opens Enabling Storm Control on the DeviceDisplaying the Storm Control Table 111 Defining Port Mirroring Sessions 112 Add Source Port page opens Adding a Port Mirroring SessionOpen the Port Mirroring 113 Deleting a Copy Port from a Port Mirroring Session Configuring Address TablesViewing Dynamic Addresses 114 Open the Dynamic Address Table Redefining the Aging Time115 Querying the Dynamic Address Table Configuring the Spanning Tree ProtocolDefining STP Global Settings Sorting the Dynamic Address Table 16. STP Global Settings 117 Defining STP Global Parameters Open the STP Global SettingsSelect Enable in the Spanning Tree State field Modifying STP Global Parameters Defining STP Port Settings 119 Ethernet Fast Ethernet Gigabit Ethernet 120 Modifying STP Port Properties Click Apply Changes. STP is enabled on the portEnabling STP on a Port Displaying the STP Port Table Defining STP LAG Settings 122 123 Modifying the LAG STP Parameters Configuring Rapid Spanning TreeOpen the STP LAG Settings 124 125 19. Rapid Spanning Tree Rstp Enabling Rstp Configuring VLANsDefining Vlan Members 126 Create New Vlan page opens Adding New VLANsOpen the Vlan Membership 127 Deleting Vlan Membership Groups Vlan Port Membership TableModifying Vlan Membership Groups 128 Deleting a Vlan Assigning Ports to a Vlan Group129 Open the Vlan Port Settings Defining Vlan Ports SettingsAssigning Port Settings 130 Displaying the Vlan Port Table Defining Vlan LAG Settings131 Displaying the Vlan LAG Table Assigning Vlan LAG SettingsOpen the Vlan LAG Setting 132 Aggregating Ports 133 Defining LAG Membership Configuring a Port to a LAGMulticast Forwarding Support Open the LAG Membership Enabling Bridge Multicast Filtering on the Device Defining Multicast Global Parameters135 Enabling Igmp Snooping on the Device Adding Bridge Multicast Address Members136 Add Bridge Multicast Group page opens Adding Bridge Multicast AddressesOpen the Bridge Multicast Group Define the Vlan ID and New Bridge Multicast Address fields Assigning Multicast Forward All Parameters Defining Ports to Receive Multicast ServiceAssigning LAGs to Receive Multicast Service 138 139 Port Control Definition Open Bridge Multicast Forward All Attaching a Port to a Multicast Router or SwitchAttaching a LAG to a Multicast Router or Switch 140 Igmp Snooping 141 Displaying the Igmp Snooping Table 142 Viewing Statistics 143 Viewing Rmon Statistics Group Viewing Rmon Statistics144 Open the Rmon Statistics Group Viewing ChartsViewing Interface Statistics 145 Viewing the CPU Utilization 146 VPT Tag Classification Information Configuring Quality of ServiceCoS to Queue Mapping Table Default values CoS Value Forwarding Queue Values Dscp Value Forwarding Queue Values CoS ServicesDscp to Queue Mapping Table Default Values 148 Selecting Trust Enabling Quality of ServiceDefining CoS Global Parameters 149 Open the Interface Settings Defining QoS Interface SettingsAssigning QoS/CoS settings for an interface Displaying the QoS Interface Settings Table Click Show All QoS Interface Settings Table page opens Defining Queue Settings151 Open the QoS Queue Settings Defining the Queue Settings152 Open the CoS to Queue Mapping Table Mapping CoS Values to QueuesMapping a CoS value to a Queue 153 Mapping Dscp Values to Queues Restoring default values 154Mapping a Dscp value and assigning priority queue 155 156 Console Connection Managing the Device Using the CLIAccessing the Device Through the CLI Telnet Connection User Exec Mode Using the CLICommand Mode Overview 158 Global Configuration Mode Privileged Exec Mode159 Vlan Mode Interface Configuration ModeInterface Mode Port Channel Mode Command asset-tag CLI CommandsCommand copy Usage Guidelines Command debug-modeCommand Mode Character Description Command end Command doCommand exit configuration Examples Command exit ExecCommand help Help Interface ethernet interface Command interface ethernetCommand interface port-channel Interface port-channel port-channel-number Interface vlan vlan-id Command interface vlanCommand ip address Ip address ip-address Command ping Command ip default-gatewayCommand login Defaults 168 Reload Command reloadCommand show tech-support command 169 Show tech-support config memory 170 Default Command snmp-server community171 Command username 172 Glossary 173 174 175 Fragment FlappingFlow Control Host 177 178 179 180 181 182 Index 183 184 185 186