Dell PowerConnect 2848 User's Guide

Dell PowerConnect 2848 Manual

Dell PowerConnect 2848 manual table of contents:

  • Dell PowerConnect 2848 | User's Guide - Page 1
    Dell™ PowerConnect™ 28xx Systems User Guide w w w. d e l l . c o m | s u p p o r t . d e l l . c o m
  • Dell PowerConnect 2848 | User's Guide - Page 2
    ... used in this text: Dell, Dell OpenManage, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, PowerConnect, PowerApp, PowerVault, Axim, DellNet, and Latitude are trademarks of Dell Inc. Microsoft and Windows are either trademarks or registered trademarks...
  • Dell PowerConnect 2848 | User's Guide - Page 3
    ...16 16 System Description. PowerConnect 2808 ...PowerConnect 2816 ...PowerConnect 2824 ...PowerConnect 2848 ...Summary of PowerConnect Models Features ... General Features ...MAC Address Supported Features ...Layer... 23 23 24 24 24 25 ... PowerConnect 28xx Front and Back Panel Port ...
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    ... ... 26 26 Internal Power Supply Connector 3 Installing the PowerConnect Device Installation Precautions . Site Requirements Unpacking ... 27 27 ... Control ...Back Pressure ...Switching Port Default Settings ... 4 Starting and Configuring the Device Booting the Device - Managed Mode . Initial ...
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    ...Default Values...Transitioning Between Modes Returning to Managed Mode . ... 5 Using Dell OpenManage Switch Administrator . Understanding the Interface ...Viewing the Versions Page . Resetting the Device ...Entering Secure Mode ...Defining Device IP Addresses . Running Cable Diagnostics ... 59 59 59...
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    ...DHCP Properties ...Defining Network Pool ...Excluding Addresses ...Manually Allocating IP Addresses (Static Hosts) Configuring Address Binding ...Defining Advanced Settings .......Configuring Green Ethernet ...Enabling Storm Control ...Defining Port Mirroring Sessions . Configuring Address ...
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    Configuring Rapid Spanning Tree . Configuring VLANs . Defining VLAN Members ...VLAN Port Membership Table Defining VLAN Ports Settings . Defining VLAN LAG Settings . Aggregating Ports Defining LAG Membership Multicast Forwarding Support . ... 124 126 126 128 130 131 133 ...
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    ...exit (EXEC) ...Command: help ...Command: interface ethernet...Command: interface port-channel ...Command: interface vlan ...Command: ip address ...Command: ip default-gateway ...Command: login ...Command: ping ...Commad: reload ......
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    ... contains the information needed for installing, configuring and maintaining the PowerConnect 2808, PowerConnect 2816... 28xx switches can be used to connect workstations and other network devices, such... front panel. Figure 1-1. PowerConnect 2808 Front Panel The PowerConnect 2808 supports the following...
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    ... Panel The PowerConnect 2816 supports the following ports: • 16 Gigabit Ethernet copper ports PowerConnect 2824 The following figure illustrates the ... Ethernet copper ports 4 SFP combo ports (1000BASE-SX or 1000BASE-LX) 10 Dell PowerConnect 28xx Systems User Guide
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    .... Table 1-1. PowerConnect Models Model PowerConnect 2808 PowerConnect 2816 PowerConnect 2824 PowerConnect 2848 Copper Ports/ RJ-45 Connectors 8 built-in 10/100... a per-port basis. The default status on all ports is set to OFF. Dell PowerConnect 28xx Systems User Guide ...
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    ... server-to-server transfers. AutoMDI/MDIX Support The switch automatically detects whether the cable connected to an RJ-45 port is crossed or straight ...user action, the following parameters are detected Cable Type and Status Cable Length Fault-Distance 12 Dell PowerConnect 28xx Systems User Guide
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    MAC Address Supported Features MAC Address Capacity Support The PowerConnect 2808, 2816, 2824 switches support a total of 8K MAC ... by the device: • Energy-Detect - Auto-detection of inactivity on a port, and subsequent reducing of transmit power. Dell PowerConnect 28xx Systems User Guide 13
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    ... VLANs classify incoming packets to VLANs based on their ingress port. Link Aggregation The PowerConnect 28xx switches support up to six aggregated links. ...of this facility are: • Fault tolerance protection from physical link disruption 14 Dell PowerConnect 28xx Systems User Guide
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    ... replies. The information replied is then used to provide the switch system with a TFTP server IP address and a download file name. The ... forwarding loops. STP Root Guard Root guard restricts the interface from functioning as the root port for the switch Dell PowerConnect 28xx Systems User Guide 15
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    ... the system can be monitored and configured. TFTP Trivial File Transfer Protocol The PowerConnect 28xx switches support software boot image and software ... and to view the results, using the Web management interface in the system. 16 Dell PowerConnect 28xx Systems User Guide
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    2 Hardware Description Switch Port Configurations PowerConnect 28xx Front and Back Panel Port Description The Dell™ PowerConnect™ 28xx ... the front panels and back panels of the PowerConnect 28xx switches. Figure 2-1. PowerConnect 2808 Front Panel On the front panel ...
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    Figure 2-2. PowerConnect 2808 Back Panel Figure 2-3. PowerConnect 2816 Front Panel On the front panel there are 16 ports which are numbered 1 to ... "Management Modes" on page 49. Figure 2-4. PowerConnect 2816 Back Panel 18 Dell PowerConnect 28xx Systems User Guide
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    Figure 2-5. PowerConnect 2824 Front Panel On the front panel there are 24 ports which are numbered 1 to 24, top down and ...to reset the device. For more information about management modes and transitioning between them, see "Management Modes" on page 49. Dell PowerConnect 28xx Systems User Guide 19
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    Figure 2-6. PowerConnect 2824 Back Panel Figure 2-7. PowerConnect 2848 Front Panel On the front panel there are 48 ports, which are numbered 1 ...the front panel indicates whether the device is powered on or not. A Mode push- 20 Dell PowerConnect 28xx Systems User Guide
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    ... 2-8. PowerConnect 2848 Back Panel Physical Dimensions The PowerConnect 2808 switch has the following physical dimensions Height - 43.2 mm (1.7008 in.) Width - 256 ... links, power supply, fan status, and Managed Mode status. Dell PowerConnect 28xx Systems User Guide ...
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    ... Solid Off Description The switch is turned on. The switch is not turned on. Managed Mode LED On the PowerConnect 28xx front panel there is a Managed Mode LED monitoring the switch node as ... figure illustrates the RJ-45 10/100/1000BASE-T LEDs. 22 Dell PowerConnect 28xx Systems User ...
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    ... PowerConnect 2848 switch has three fans and the PowerConnect 2824 switch has one fan for system ventilation. The PowerConnect 2808 and PowerConnect 2816 devices have no internal fans. Dell PowerConnect 28xx Systems User Guide 23
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    ... in the following table. Table 2-7. RJ-45 Pin Number Allocation for 10/100/ 1000BASE-T Ethernet Port Pin No 1 2 3 4 5 Function TxRx 1+ TxRx 1TxRx 2+ TxRx 2TxRx 3+ Dell PowerConnect 28xx Systems User Guide 24
  • Dell PowerConnect 2848 | User's Guide - Page 25
    ... 1000BASE-T Ethernet Port Pin No 6 7 8 Function TxRx 3TxRx 4+ TxRx 4- SFP Ports The PowerConnect 2824 switch supports two SFP transceivers combo ports, and...-inverted data out; AC coupled. Receiver ground (common with transmitter ground) Dell PowerConnect 28xx Systems User Guide 25...
  • Dell PowerConnect 2848 | User's Guide - Page 26
    ...internal power supply. Internal Power Supply Connector The PowerConnect 28xx supports a single internal power supply to provide power for switching operations. The.... The AC power connector is located on the back panel of the switch. 26 Dell PowerConnect 28xx Systems User Guide
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    3 Installing the PowerConnect Device This section contains information about device unpacking, location, installation, and cable connections. Installation ... that the airflow around the front, sides, and back of the device is not restricted. • • Dell PowerConnect 28xx Systems User Guide 27
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    Site Requirements The PowerConnect 28xx can be mounted in a standard equipment rack, placed on a tabletop, or... CD • Product Information Guide Unpacking the Device To unpack the PowerConnect device: NOTE: Before ... and clean surface. 4 Remove all packing material. 28 Dell PowerConnect 28xx Systems ...
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    ... on one side of the device ensuring the mounting holes on the device line up to the mounting holes on the rack mounting bracket. The following figure illustrates where to mount the brackets. Dell PowerConnect 28xx Systems User Guide 29
  • Dell PowerConnect 2848 | User's Guide - Page 30
    ...a flat surface if it is not installed on a rack. The surface must be able to support the weight of the device and the device cables. 1 Attach the self-... cm) on each side and 5 inches (12.7 cm) at the back. 3 Ensure that the device has proper ventilation. 30 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 31
    ... with a screwdriver. 4 Repeat the process for the wall-mounting bracket on the other side of the device. 5 Place the device on the wall in the location where the device is being installed. Dell PowerConnect 28xx Systems User Guide 31
  • Dell PowerConnect 2848 | User's Guide - Page 32
    .... Standard straight-through twisted-pair cables can be used to connect to any other Ethernet network (systems, servers, switches or routers) that supports auto-negotiation. 32 Dell PowerConnect 28xx Systems User Guide
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    ...Pair cable to the device's RJ-45 connector and the other end to a switch or server. 2 Make sure each twisted pair cable does not exceed 328... emulation. Go to www.microsoft.com for information on Windows 2000, Windows XP, and Windows Vista service packs. Dell PowerConnect 28xx Systems User Guide 33
  • Dell PowerConnect 2848 | User's Guide - Page 34
    ... Connecting to Power Supply 3 After connecting the device to a power source, confirm that the device is connected and operating correctly by examining the LEDs on the front panel. 34 Dell PowerConnect 28xx Systems User Guide
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    ..., and crossover cables must be used to connect one transmission device (switch or hub) to another. Both the straight through and crossover cables are... Ethernet Port Pin No Function 1 2 3 4 5 6 7 8 TxRx 1+ TxRx 1TxRx 2+ TxRx 2TxRx 3+ TxRx 3TxRx 4+ TxRx 4- Dell PowerConnect 28xx Systems User Guide 35
  • Dell PowerConnect 2848 | User's Guide - Page 36
    Port Default Settings The general information for configuring the device ports includes the short description of... control on switching 10/100/1000BaseT ports. Auto-negotiation is enabled per port by default.... a link so it becomes unavailable for additional traffic. 36 Dell PowerConnect 28xx Systems ...
  • Dell PowerConnect 2848 | User's Guide - Page 37
    Switching Port Default Settings The following table gives the port default settings. Table 3-3. ... state Port tagging Flow Control Back Pressure MDIX (not user-configurable) Default Setting ...No tagging On Off (disabled on ingress) On (relevant to coppers ports only) Dell PowerConnect 28xx Systems User...
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    ... required if the device is to be used in a managed mode. NOTE: The PowerConnect 2808 has an internal serial port. NOTE: Before proceeding, read the release notes ...other procedures. For initial configuration, the standard device configuration is performed. Dell PowerConnect 28xx Systems ...
  • Dell PowerConnect 2848 | User's Guide - Page 40
    ... Installation Booting the Device - Managed Mode The procedure described in this section refers to the device when set to operate as a managed switch. The PowerConnect 2808/16/24/48 models include a built-in dual purpose Mode Button. To change between managed ...
  • Dell PowerConnect 2848 | User's Guide - Page 41
    ... network The default gateway (next hop router) IP address for configuring the default route. The Setup Wizard guides you through the initial device configuration, ... the Device Using the CLI" on page 157. The Setup Wizard configures the following fields. Dell PowerConnect 28xx Systems User Guide 41
  • Dell PowerConnect 2848 | User's Guide - Page 42
    ... Password Device IP address IP subnet mask Default Gateway IP address Welcome to Dell Easy Setup Wizard. The Setup Wizard guides you through the initial ... Enter [Y] to continue the Set-up wizard. The following information displays: 42 Dell PowerConnect 28xx Systems User Guide
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    ...:***** Wizard Step 3 The following information displays: Next, an IP address is setup. The IP address is defined on the default VLAN ,(VLAN #2) . This is ...the device (A.B.C.D):10.6.22.100 Please enter the IP subnet mask (A.B.C.D or nn):[255.255.255.224] Dell PowerConnect 28xx Systems User Guide 43
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    ... has been collected SNMP Interface = [email protected] User Account setup = admin Password Management IP address = 10.6.22.100 255.255.255.224 ... IP address, and may include subnet mask and default gateway. 44 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 45
    ... using the DHCP protocol to retrieve an IP address, the device acts as a DHCP client. When the device is reset, the DHCP command is saved in the configuration file, but not the IP address. To ... Version 1.0.0.20 Built 22-Jan-xxxx 15:09:28 Dell PowerConnect 28xx Systems User Guide 45
  • Dell PowerConnect 2848 | User's Guide - Page 46
    ... File In some cases, the device configuration must be erased. If the configuration is erased, all parameters configured via CLI, EWS or SNMP must be reconfigured. 46 Dell PowerConnect 28xx Systems User Guide
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    ... a system image through the TFTP server: 1 Ensure that an IP address is configured on one of the device ports and pings can be sent to a TFTP server. 2 Make sure that the file to be downloaded is saved on the TFTP server (the ros file). Dell PowerConnect 28xx Systems User Guide 47
  • Dell PowerConnect 2848 | User's Guide - Page 48
    .... To download a boot image through the TFTP server: 1 Ensure that an IP address is configured on one of the device ports and pings can be sent to a ... message is displayed: console# reload This command will reset the whole system and disconnect your current 48 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 49
    ... The Managed Mode LED provides an indication of the current mode (see "On the PowerConnect 28xx front panel there is a Managed Mode LED monitoring the switch node as ... - R/W privilege DHCP Client - Off Flow Control - On STP - Off Dell PowerConnect 28xx Systems User Guide 49...
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    Transitioning Between Modes The following diagram summarizes movement between modes: Figure 4-2. Transitioning Between Management Modes 50 Dell PowerConnect 28xx Systems User Guide
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    ... - When restoring local configuration, this option uses the system default IP address, user name and password. Apply Changes - The selected configuration is restored and the device reboots. • • Dell PowerConnect 28xx Systems User Guide 51
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    52 Dell PowerConnect 28xx Systems User Guide
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    5 Using Dell OpenManage Switch Administrator This section provides an introduction to the user interface. Understanding the Interface The ... 5-1. Switch Administrator Components Table 5-1 lists the interface components with their corresponding numbers. Dell PowerConnect 28xx Systems User Guide 53
  • Dell PowerConnect 2848 | User's Guide - Page 54
    ... about the device and access to Dell Support. For more information, see "Information Buttons." 2 4 Device Representation The PowerConnect home page contains a graphical device representation of the front panel. Figure 5-2. Port LED Indicators 54 Dell PowerConnect 28xx Systems User Guide
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    .... NOTE: The Port LEDs are not reflected in PowerConnect front panel in the PowerConnect OpenManage Switch ... to the page currently open. For example, if the IP Addressing page is open, the help topic ...out of the application and closes the browser window. About Log Out Dell PowerConnect 28xx Systems ...
  • Dell PowerConnect 2848 | User's Guide - Page 56
    ... information about management modes, see "Management Modes" on page 49. 4 Click OK. The Dell PowerConnect OpenManage™ Switch Administrator home page opens. Access ... the following modes, based upon the access level assigned to you: 56 Dell PowerConnect 28xx Systems User Guide
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    • • Management - This is a read-write mode where you can see and edit all pages of the interface. Monitor - This is...you cannot edit them. For more information about setting the access level, see ("Defining the Local User Databases" on page 69). Dell PowerConnect 28xx Systems User Guide 57
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    ... security features, downloading device software, and resetting the device. To open the System page, click ...Information The General page contains links to pages for configuring device parameters. Viewing Device Information ..., location, and contact, the system MAC Address, System Object ID, date, time,...
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    ... MAC address. Sys Object ID - Specifies the vendor's authoritative identification of the network management .... Asset Tag (0-16 Characters) - Specifies the user-defined device reference. Serial No.... the amount of time since the last device reset. The system time is displayed in the following format...
  • Dell PowerConnect 2848 | User's Guide - Page 61
    Defining System Information: 1 Open the Asset page. 2 Define the relevant fields. 3 Click Apply Changes. The system parameters are defined, and the device is updated. Initiating a Telnet Session: 1 Open the Asset page. 2 Click Telnet. A Telnet session is initiated. Viewing the Versions Page The ...
  • Dell PowerConnect 2848 | User's Guide - Page 62
    ... page enables the device to be reset from a remote location. For more information about saved Configuration files, see "Managing Files" on page 80. To open the Reset page, click...Click OK. The device is reset. After the device is reset, a prompt for a user name and password displays. 4...
  • Dell PowerConnect 2848 | User's Guide - Page 63
    ... Mode, configure the device in Managed Mode, and then switch to Secure Mode via the web interface. To exit ... Managed Mode button on the device to enter the Managed Mode default configuration with the default IP address of 192.168.2.1. For information about management modes, see "Management Modes" on ...
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    ... links for assigning interface and default gateway IP addresses, and enabling or disabling ... the subnet mask of the static IP Address, currently assigned to the device. Default Gateway - Specifies the static Default Gateway Address, currently assigned to the device. DHCP IP Address - Specifies ...
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    ... from the DHCP server. Apply DHCP Address - Activates the IP Address, Subnet Mask Address, and Default Gateway Address, received from the DHCP...: 1 Open the IP Interface Parameters page. 2 Set DHCP to Disable. 3 Set the IP Address, Subnet Mask and Default Gateway. 4 Click Apply Changes. The static ...
  • Dell PowerConnect 2848 | User's Guide - Page 66
    ... Cable - There is no cable connected to the port. Open Cable - The cable is connected on only... occurred. Last Update - The last time the port was tested. Approximate Cable Length - The approximate... length. This test can only be performed when the port is up and operating at 1 Gbps. Performing...
  • Dell PowerConnect 2848 | User's Guide - Page 67
    ... Transceiver Diagnostics page, click System→ Diagnostics→ Optical Transceiver Diagnostics in the tree view. Figure 6-8. Optical Transceiver Diagnostics Port - The port to which the fiber cable is connected. Temperature - The temperature (in Celsius) at which the cable is operating. ...
  • Dell PowerConnect 2848 | User's Guide - Page 68
    ... archived power up and data is ready. N/A - Not Available, N/S - Not Supported, W - Warning, E - Error. Finisair transceivers do not support the transmitter...diagnostic testing. Fiber Optic analysis feature works only on SFPs that support the digital diagnostic standard SFF-4872. 68 Update with ...
  • Dell PowerConnect 2848 | User's Guide - Page 69
    .... Users with access level 15 are Privileged Users, and only they can access and edit all pages of the OpenManage Switch Administrator. Password (0-64 Characters) - User-defined password. Confirm Password - Confirms the user-defined password....
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    4 Click Apply Changes. The user access rights and passwords are defined, and the device is updated...3 Define the fields. 4 Click Apply Changes. The new user is defined, and the device is updated. Displaying the ... User Database page. 2 Click Show All. The Local User Table opens: Figure 6-11. Local User ...
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    ... for networks. To open the RADIUS Settings page, click System → Management Security → RADIUS in the tree view. Figure 6-12. RADIUS Settings • IP Address - The list of Authentication Server IP addresses. Update with your book title 71
  • Dell PowerConnect 2848 | User's Guide - Page 72
    ... RADIUS communications between the device and the RADIUS server. This key is encrypted. Source IP Address - Specifies the source IP address that ... the RADIUS server. This key is encrypted. Source Address - Specifies the source IP address that is used for communication with RADIUS servers. • ...
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    2 Click Add. The Add RADIUS Server page opens: Figure 6-13. Add RADIUS Server Page 3 Define the fields. 4 Click Apply Changes. The new RADIUS server is added, and the device is updated. Displaying the RADIUS Server List: 1 Open the RADIUS Settings page. 2 Click Show All. The Show all RADIUS ...
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    ... Servers List. Defining SNMP Parameters Simple Network Management Protocol (SNMP) provides a method for managing network devices. Devices supporting SNMP run a local software ... tree view. This section contains information for managing the SNMP configuration. 74 Update with your book title...
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    Defining SNMP Global Parameters The SNMP Global Parameters page permits enabling both SNMP and Authentication notifications.To open the SNMP Global Parameters page, click System → SNMP → Global Parameters in the tree view. Figure 6-15. Global Parameters • • SNMP Notifications - Enables ...
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    ... SNMP Management Station - A list of management station IP addresses. Community String - Functions as a password and used to authenticate the selected management station to ... for which there is no access. Read Write - The management access is read-write, for all MIBs except ...
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    ... 6-17. Add SNMP Community 3 Select one of the following: - - SNMP Management Station - Defines an SNMP community for a specific management station. All - Defines an SNMP community for all management stations. 4 Define the remaining fields. 5 Click Apply Changes. The ...
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    ... Recipient in the tree view. Figure 6-19. Notification Recipients • • • Recipient IP - Indicates the IP address to whom the traps are sent. Community String - Functions as a password and used to authenticate the selected management ...
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    - • SNMPv2 - SNMP Version 2 traps are sent. Remove Notification Recipient - When checked, removes selected notification recipients. Adding a new Trap Recipients 1 Open Notification Recipients page. 2 Click Add. The Add Notification Recipients page opens: 3 Define the relevant fields. 4...
  • Dell PowerConnect 2848 | User's Guide - Page 80
    ... page contains fields for managing device software, the Image Files, and the Configuration Files. Files can...device boots and runs from the image. • To open the File Management page, click System → File ... From Server page, click System → File Management → File Download in the tree view. 80 ...
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    ... HTTP server. Firmware Download • • • Server IP Address - The Server IP Address from which the firmware files are downloaded. Source File ... boot file. Configuration Download • Server IP Address - The Server IP Address from which the configuration files are downloaded. Update with ...
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    ... file upload via the TFTP server. Upload via HTTP - Enables initiating a configuration file upload via the FTP server. TFTP Server IP Address - The Server IP Address to which the file is uploaded. Destination File Name (1-64 Characters) - Indicates ...
  • Dell PowerConnect 2848 | User's Guide - Page 83
    ... The Restore Defaults page contains the following field: • Restore Configuration Factory Defaults - Sets the device settings to their factory default ... The DHCP server is used mainly for centralized control over assignment of IP addresses to attached hosts. A switch can operate as either a DHCP ...
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    ... DHCP server uses a defined pool of IP addresses (user-defined) from which it allocates ...clients. The DHCP server can allocate IP addresses in three configuration modes: • • Static allocation ...specified period of time. The IP address is revoked at the end of this period and the switch must request...
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    ... - Indicates if the DHCP server is set to ping the offered IP address before responding to a client request, to ensure ... Ping Retries- Optionally specifies the number of pings that are sent before an IP address can be assigned to a requesting client. The range is 1 to 10 and the default value is ...
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    ...6-25. Network Pool Subnet IP Address - Specifies the IP address of the subnet in which the network ... Address Pool End - Specifies the last IP address in the range of the network pool. Lease Duration ... amount of time a DHCP client can use an IP address from this pool. The total lease duration ...
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    ...server for the DHCP client. Next Server - Specifies the IP address of the next server in the boot process ... contain up to 128 characters. • • Excluding Addresses By default, the DHCP Server assumes that all ... be assigned to DHCP clients. The user can specify IP addresses that must not be used....
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    Figure 6-26. Excluded Addresses • • Start IP Address - Displays the first IP address in the range of excluded IP addresses. End IP Address - Displays the last IP address in the range of excluded IP addresses. Adding an Excluded Address 1 Open the Excluded Addresses page. 2 Click ...
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    ... (Static Hosts) The Static Hosts page is used to manually allocate IP addresses to network hosts. To open the Static Hosts page, click System → DHCP ...). The range is up to 32 characters. IP Address - Specifies the IP address that was statically assigned to the host. Network Mask ...
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    ... used to register and resolve NetBIOS names to IP addresses. Peer-to-Peer - Point-to-point ... used to register and resolve computer names to IP addresses. Mixed - A combination (mix) of b-node and ... DHCP static host. Next Server - Specifies the IP address of the next server in the boot process of...
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    Figure 6-29. Add Static Host 3 Define the relevant fields. 4 Click Apply Changes. The static host is added, and the device is updated. Displaying Static Hosts Tables 1 Open the Static Hosts page. 2 Click Show All. The Static Hosts Table page opens: Figure 6-30. Static Hosts Table Update with ...
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    ... lease expiration date and time of the host's IP address. Type - Displays the manner in which the... on the DHCP server. Permanent allocation - An IP address received through a standard request-reply ... period of time. The IP address is revoked at the end of this period and the switch must request ...
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    ... The changes to these attributes are applied only after the device is reset. To open the Advanced Settings page, click System → Advanced .... General Settings Attribute - The general setting attribute. Current - The currently configured value. After Reset - The future (after reset) value. ...
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    94 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 95
    ...system operation and general information for configuring network security, ports, Address tables, GARP VLANs, Spanning Tree, Port Aggregation, and Multicast... available, even if specific ports attached to the VLAN are unauthorized. For example, Voice over IP does not require...
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    ... to unauthorized users. • • To open the Network Security page select Switch → Network Security. Configuring Port Based ... authentication and for enabling Guest VLANs. To open the Port Based Authentication page, click Switch → Network Security → Port Based Authentication. Figure 7-1. Port ...
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    .... Disable - Disables using a Guest VLAN for unauthorized ports. This is the default. VLAN List - When Guest ... by the RADIUS server, the user is automatically joined to the VLAN configured on the RADIUS server Port Lock..., and port authentication is enabled and set to 802.1x multi-session mode...
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    ...- Authenticated ports remain unauthenticated VLAN and Guest VLAN members. Static VLAN configuration is not applied to the port. The following list ...field value is in seconds. The field default is 3600 seconds. Reauthenticate Now - Permits immediate port reauthentication, when...
  • Dell PowerConnect 2848 | User's Guide - Page 99
    ... Port Based Authentication Table Termination Cause - The reason for which the port authentication was terminated. Copy To Checkbox - Copies port parameters ... the interface in the Copy Parameters from field. 4 Select an interface in the Port Based Authentication Table. 5 Select the Copy to check ...
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    ... port based authentication settings for specific ports. To open the Multiple Hosts, click Switch →Network Security → Multiple Hosts. Figure 7-3. Multiple Hosts • • Port - ... arriving in single-host mode, from a host whose MAC address is not the client (supplicant) MAC address....
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    ... if the Multiple Hosts field is defined as Disable. The default is 10 seconds. Status - The host status. ... interface in single-host mode, from a host whose MAC address is not the client (supplicant) MAC address. Displaying the Multiple Hosts Table 1 Open the Multiple Hosts page. 2 Click Show All....
  • Dell PowerConnect 2848 | User's Guide - Page 102
    ... Authenticated Users page displays user port access lists. To open the Authenticated Users page, click Switch → Network Security → Authenticated Users. Figure ... (supplicant) MAC address. Displaying the Authenticated Users Table 1 Open the Add User Name page. 2 Click Show All....
  • Dell PowerConnect 2848 | User's Guide - Page 103
    .... To open the Ports page, click Switch → Ports. Defining Port Parameters The Port Configuration page contains fields for defining port parameters. To open the Port Configuration page, click Switch → Ports → Port Configuration in the tree view. Figure 7-7. ...
  • Dell PowerConnect 2848 | User's Guide - Page 104
    ... and uncrossed cables. • • • • Hubs and switches are deliberately wired opposite the way end ... are match up properly. When two hubs/switches are connected to each other, or two end ... Dependent Interface with Crossover) - Used for hubs and switches. Current MDI/MDIX- The currently ...
  • Dell PowerConnect 2848 | User's Guide - Page 105
    .... 4 Click Apply Changes. The port parameters are saved to the device. Displaying the Port Configuration Table: 1 Open the Port ... Ports Configuration Table opens: Figure 7-8. Ports Configuration Table Aggregating Ports Load Balancing enables the even distribution of data and/or processing packets ...
  • Dell PowerConnect 2848 | User's Guide - Page 106
    ... load balancing based on source and destination IP addresses. Layer 2-3 - Enables load balancing based... addresses, and source and destination IP addresses. LAG - The LAG number. LAG Mode -...64 Characters) - Provides a user-defined description of the configured LAG. LAG Type - The port types ...
  • Dell PowerConnect 2848 | User's Guide - Page 107
    ... that enables a LAG to advertise its transmission rate and flow control (the flow control default is enabled) abilities to its partner. Current Auto Negotiation - The currently configured Auto Negotiation setting. Admin Speed - The speed at which ...
  • Dell PowerConnect 2848 | User's Guide - Page 108
    ..., specifically by reducing power usage of Ethernet connections. The following methods are supported by the device: • • Energy-Detect - Auto-detection of inactivity on a port, and subsequent turning down of transmit power. It may take about 1 ...
  • Dell PowerConnect 2848 | User's Guide - Page 109
    ...7-11. Green Ethernet Configuration • Cumulative Energy Saved - The total amount of energy saved since the last reset. This amount is equal to the saved power multiplied by the time period in hours. - Reset - Click to set the Cumulative Power Saved counter back to 0. Link...
  • Dell PowerConnect 2848 | User's Guide - Page 110
    The Green Ethernet Ports Table includes the following port energy saving information: • • Port -... Reasons may include that the Link Type is not supported, or that the Port Link is up. Admin - Whether ... rate separately on each port, and discard frames when the rate exceeds a user-defined rate. ...
  • Dell PowerConnect 2848 | User's Guide - Page 111
    Figure 7-12. Storm Control • • • Port - The port from which storm control is enabled. Broadcast Control - Enables or disables forwarding broadcast packet types on the device. Mode - Specifies the Broadcast mode currently enabled on the device. The possible field value are Unknown ...
  • Dell PowerConnect 2848 | User's Guide - Page 112
    ... cannot be configured as a source port. Ports cannot be a LAG member. IP interfaces are not configured on the port. GVRP is not enabled on the port. The port is not a VLAN member. Only one destination port can be defined. The following restrictions apply...
  • Dell PowerConnect 2848 | User's Guide - Page 113
    ... Source Ports cannot be a LAG member. Ports cannot be configured as a destination port. All packets are transmitted tagged from the destination port. Monitored all RX/TX packets to ... the Port Mirroring page, click Switch→ Ports→ Port Mirroring in the tree view. Figure 7-14. Port...
  • Dell PowerConnect 2848 | User's Guide - Page 114
    ... is forwarded immediately to the port. The Dynamic Address Table can be sorted by interface, VLAN, and ...all ports of the relevant VLAN. In order to prevent the bridging table from overflowing, dynamic MAC addresses,... table, including the interface type, MAC addresses, VLAN, and table sorting. Packets ...
  • Dell PowerConnect 2848 | User's Guide - Page 115
    ...Dynamic Address Table before it is timed out if no traffic from the source is detected. The default ...table is queried. • • • • MAC Address - Specifies the MAC address for which the table is queried. VLAN ID - Specifies the VLAN ID for which the table is queried. Address Table Sort Key ...
  • Dell PowerConnect 2848 | User's Guide - Page 116
    ...query the Dynamic Address Table. Entries can be queried by Port, MAC Address, or VLAN ID. 3 Click Query. The Dynamic Address...Sort Key drop-down menu, select whether to sort addresses by address, VLAN ID, or interface. 3 Click Query. The Dynamic Address Table is sorted. Configuring the Spanning Tree ...
  • Dell PowerConnect 2848 | User's Guide - Page 117
    ... packets when spanning tree is disabled on an interface. This is the default value. • Port Cost Default Values - Determines the Spanning Tree default path ...: - - Short - Specifies 1 through 65535 range for port path costs. This is the default value. Long - Specifies 1 through 200000000 ...
  • Dell PowerConnect 2848 | User's Guide - Page 118
    ..., each is assigned a priority. After exchanging BPDUs, the switch with the lowest priority value becomes the Root Bridge. The default value is 32768. The... before forwarding packets. The default is 15 seconds. Bridge ID - Identifies the Bridge priority and MAC address. Root Bridge ...
  • Dell PowerConnect 2848 | User's Guide - Page 119
    ... Settings page, click Switch→ Spanning Tree→ Port Settings in the tree view. Figure 7-17. ... STP is enabled. STP - Enables or disables STP on the port. Fast Link - When selected, enables Fast ... Port State is automatically placed in the Forwarding state when the port link is up. Fast Link mode ...
  • Dell PowerConnect 2848 | User's Guide - Page 120
    ...cost path to forward packets to the root switch. Designated - Indicates the port or LAG through which ...path to the root switch from the root interface. Backup - Provides a backup path to the designated port path ... by the port speed and the default path cost method Ethernet - 2000000 Fast Ethernet...
  • Dell PowerConnect 2848 | User's Guide - Page 121
    ... increments of 16. Designated Bridge ID - The bridge priority and the MAC Address of the designated bridge. Designated Port ID - The selected port's priority and... Fast Link fields. 3 Click Apply Changes. The STP port parameters are modified, and the device is updated. Displaying ...
  • Dell PowerConnect 2848 | User's Guide - Page 122
    ... The STP LAG Settings page contains fields for assigning STP aggregating port parameters. To open the STP LAG Settings page, click Switch→ Spanning ... tree view. Figure 7-18. STP LAG Settings • • • Select a LAG - The user-defined LAG. For more information, see "Defining LAG Membership" on ...
  • Dell PowerConnect 2848 | User's Guide - Page 123
    ...cost path to forward packets to the root switch. Designated - Indicates the port or LAG through which... to the root switch from the root interface. Backup - Provides a backup path to the designated port path... and the MAC Address of the designated bridge. Designated Port ID - The port priority and...
  • Dell PowerConnect 2848 | User's Guide - Page 124
    ... Changes. The STP LAG parameters are modified, and the device is updated. Configuring Rapid Spanning Tree While Classic Spanning Tree guarantees preventing ... tree, without creating forwarding loops. RSTP has the following port states Disabled Learning Discarding Forwarding Rapid Spanning Tree is ...
  • Dell PowerConnect 2848 | User's Guide - Page 125
    ... connections connected to a shared segment. Disabled - The port is not participating in the Spanning Tree (the port's... STP - Enables Classic STP on the device. This is the default value. Rapid STP - Enables Rapid... if Fast Link is enabled or disabled for the port or LAG. If Fast Link is enabled...
  • Dell PowerConnect 2848 | User's Guide - Page 126
    ... reduces the amount of time in which network changes are implemented. VLANs have no minimum number of ports, and can be created per device or any .... The device supports 64 VLANs. All ports must have a defined PVID. If no other value is configured the default VLAN PVID is used. VLAN number 1 is the ...
  • Dell PowerConnect 2848 | User's Guide - Page 127
    ... information according to VLAN ID or VLAN name. VLAN Name - The user-defined VLAN name. Unauthorized Users - Enables or disables unauthorized users from accessing a VLAN. Remove VLAN - When selected, ... Membership page. 2 Click Add. The Create New VLAN page opens. Update with your book ...
  • Dell PowerConnect 2848 | User's Guide - Page 128
    ... Apply Changes. The selected VLAN is deleted, and the device is updated. VLAN Port Membership Table ... Table contains a Port Table for assigning ports to VLANs. Ports are assigned VLAN membership ...have the following values: Table 7-1. VLAN Port Membership Table Port Control T Definition The interface ...
  • Dell PowerConnect 2848 | User's Guide - Page 129
    ...VLAN member. Packets associated with the interface are not forwarded. The VLAN Port Membership Table displays... Membership Table. Assigning Ports to a VLAN Group 1 Open the VLAN Membership page. 2 Click... a value. 4 Click Apply Changes. The port is assigned to the VLAN group, and the device is updated...
  • Dell PowerConnect 2848 | User's Guide - Page 130
    Defining VLAN Ports Settings The VLAN Port Settings page contains fields for managing ports that are part of a VLAN. The port default VLAN ID (PVID) is configured on the VLAN Port Settings page. All untagged packets arriving to the device are ...
  • Dell PowerConnect 2848 | User's Guide - Page 131
    ... 1 Open the VLAN Port Settings page. 2 Click Show All. The VLAN Port Table opens. Figure 7-23. VLAN Port Table Defining... LAG Setting page provides parameters for managing LAGs that are part of a VLAN. VLANs can either be composed of individual ports or of LAGs. Untagged packets entering the device ...
  • Dell PowerConnect 2848 | User's Guide - Page 132
    ...untagged packets. The possible field values are 1-4095. VLAN 4095 is defined as per standard and.... Ingress filtering discards packets that are destined to VLANs of which the specific LAG is not a member... the fields on the page. 3 Click Apply Changes. The VLAN LAG parameters are defined, and the device...
  • Dell PowerConnect 2848 | User's Guide - Page 133
    ... between the devices, increases port flexibility, and provides link redundancy. The device supports up to ... and destination MAC addresses. Aggregated Links are treated by the system as a single logical port. Specifically, the... port does not belong to any VLAN. The port does not belong to any other LAG...
  • Dell PowerConnect 2848 | User's Guide - Page 134
    ... to multiple destinations. L2 Multicast service is based on L2 switch receiving a single packet addressed to a specific Multicast address. Multicast forwarding creates ...flooded to all relevant ports. Forwarding L2 Multicast packets is enabled by default, and not configurable. The ...
  • Dell PowerConnect 2848 | User's Guide - Page 135
    Defining Multicast Global Parameters Layer 2 switching forwards Multicast packets to all relevant VLAN ports by default, treating the packet as a Multicast transmission. While this is functional, in the sense that all relevant ports/nodes receive a copy of the ...
  • Dell PowerConnect 2848 | User's Guide - Page 136
    ...Group page also assigns ports to a specific Multicast service address group. To open the Bridge ... ID - Identifies a VLAN and contains information about the Multicast group address. Bridge Multicast... - Identifies the Multicast group MAC address/IP address. Remove - When selected, removes a Bridge...
  • Dell PowerConnect 2848 | User's Guide - Page 137
    ... the IGMP port and LAG members management settings: Blank The port is not attached to a Multicast group. Adding Bridge Multicast Addresses 1 Open the Bridge ... Add Bridge Multicast Group 3 Define the VLAN ID and New Bridge Multicast Address fields. Update with your ...
  • Dell PowerConnect 2848 | User's Guide - Page 138
    ... Multicast Group page. 2 Define the VLAN ID and the Bridge Multicast Address fields. 3 Toggle the... fields for attaching ports or LAGs to a device that is attached to a neighboring Multicast router/switch. Once IGMP Snooping is enabled, Multicast packets are forwarded to the appropriate port or VLAN. ...
  • Dell PowerConnect 2848 | User's Guide - Page 139
    ...VLAN ID - Identifies a VLAN. Ports - Ports that can be added to a Multicast service. LAGs - LAGs ...managing router and port settings. Port Control F S Blank Definition The port/LAG is excluded... group. Attaches the port to the Multicast router or switch as a static port. The port is not attached...
  • Dell PowerConnect 2848 | User's Guide - Page 140
    Attaching a Port to a Multicast Router or Switch 1 Open Bridge Multicast Forward All page. 2 ...a value. 4 Click Apply Changes. The port is attached to the Multicast router or switch. Attaching a LAG to a Multicast Router or Switch 1 Open Bridge Multicast Forward All page. 2 Define the VLAN ID field....
  • Dell PowerConnect 2848 | User's Guide - Page 141
    ... there is no multicast router. Querier IP Address - IP address of the IGMP Querier. Use either use the VLAN's IP Interface address or define a unique IP address which will be used as ... entry. The default value is 300 seconds. Leave Timeout (0-2147483647) - Time, in seconds, after a port leave ...
  • Dell PowerConnect 2848 | User's Guide - Page 142
    Enabling IGMP Snooping on the Device 1 Open the IGMP Snooping page. 2 Select the VLAN ID for the device on which IGMP snooping needs to be enabled. 3 Select Enable in the IGMP Snooping Status field. 4 Complete the fields on the page. 5 Click Apply Changes. IGMP snooping is enabled on the device. ...
  • Dell PowerConnect 2848 | User's Guide - Page 143
    8 Viewing Statistics The Statistic pages contains links to device information for RMON, and CPU utilization. Update with your book title 143
  • Dell PowerConnect 2848 | User's Guide - Page 144
    Viewing RMON Statistics Remote Monitoring (RMON) contains links for viewing network information from a remote location. To open the RMON page, click Statistics/RMON→ RMON in the tree view. Viewing RMON Statistics Group The RMON Statistics Group page contains fields for viewing information about ...
  • Dell PowerConnect 2848 | User's Guide - Page 145
    Interface - Specifies the port or LAG for which statistics are displayed. Refresh Rate - Amount of time that passes before the statistics are refreshed. Drop Events - Number of dropped events that have occurred on the interface since the device was last refreshed. Received Bytes (Octets) ...
  • Dell PowerConnect 2848 | User's Guide - Page 146
    Viewing the CPU Utilization The CPU Utilization page contains information about the system's CPU utilization and percentage of CPU resources consumed by each stacking member. Each stacking member is assigned a color on the graph. The range of the utilization reading is from 0 to 200%. The maximum...
  • Dell PowerConnect 2848 | User's Guide - Page 147
    ...by mapping packets to one of the output queues. VLAN Priority Tag to queue assignments are user-definable. The table below details the VPT to queue default settings: Table ... q4 Packets arriving untagged are assigned a default VPT that is set on a per port basis. The assigned VPT is used...
  • Dell PowerConnect 2848 | User's Guide - Page 148
    ... mapped to priority queues. The following table contains the default DSCP mapping to forwarding queue values: ..., under Strict Priority, voice over IP traffic is forwarded before FTP or e-mail ... are automatically assigned to the highest priority queue. By default, all values are set as Strict Priority....
  • Dell PowerConnect 2848 | User's Guide - Page 149
    ... - - CoS (802.1P) - The output queue assignment is determined by the IEEE802.1p VLAN priority tag (VPT) or by the default VPT assigned to a port. DSCP - The output queue assignment is determined by the DSCP field. Interface Trust settings...
  • Dell PowerConnect 2848 | User's Guide - Page 150
    ... the tree view. Figure 9-2. Interface Settings • • • Interface - The specific port or LAG to configure. Disable "Trust" Mode on Interface - Disables the ... interface. This setting overrides the Trust mode configured on the device globally. Set Default CoS For Incoming Traffic To - Sets ...
  • Dell PowerConnect 2848 | User's Guide - Page 151
    ...Defining Queue Settings The QoS Queue Settings page contains fields for configuring the scheduling method by which the queues are maintained. To open the QoS ...Priority - Specifies if traffic scheduling is based strictly on the queue priority. The default is enabled. Update with your book title 151
  • Dell PowerConnect 2848 | User's Guide - Page 152
    • WRR - Specifies if traffic scheduling is based on the Weighted Round Robin (WRR) weights to egress queues. The default values are 8 for Queue 1 4 for Queue 2 2 for Queue 3 1 for Queue 4 • • WRR Weights - The WRR weight assigned to each queue. WRR Percentage - The WRR percentage of ...
  • Dell PowerConnect 2848 | User's Guide - Page 153
    ... to which the CoS priority is mapped. Four traffic priority queues are supported. Restore Defaults - Restores the device factory defaults for mapping CoS values to a forwarding queue. Mapping a CoS value to a Queue 1 Open the CoS to ...
  • Dell PowerConnect 2848 | User's Guide - Page 154
    ... 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... and the value is assigned to a forwarding queue. Restoring default values: 154 Update with your book ...
  • Dell PowerConnect 2848 | User's Guide - Page 155
    1 Open the DSCP to Queue page. 2 Check the Restore Defaults checkbox. 3 Click Apply Changes. The default values are restored. Update with your book title 155
  • Dell PowerConnect 2848 | User's Guide - Page 156
    156 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 157
    ... to the device prior to beginning using CLI commands. For information about configuring an initial IP Address, see "Static IP Address and Subnet Mask." NOTE: ... To start a Telnet session: 1 Select Start > Run. The Run window opens. Dell PowerConnect 28xx Systems User Guide 157
  • Dell PowerConnect 2848 | User's Guide - Page 158
    2 In the Run window, type Telnet in the Open field. 3 Click OK to begin the Telnet session. Using the CLI This section provides information ... list the user EXEC commands, enter a question mark at the command prompt. 158 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 159
    ...privileged EXEC mode and then returning to the User EXEC mode: console>enable Enter Password: ****** console# console#disable console> Use...return from Global Configuration mode to Privileged EXEC mode, type the exit command or use the command. Dell PowerConnect 28xx Systems User Guide 159...
  • Dell PowerConnect 2848 | User's Guide - Page 160
    ...The VLAN mode contains commands to create and configure a VLAN as a whole, for example, to create a VLAN and apply an IP address to the VLAN. The following is... the Port Channel mode prompt: Console (config)# interface port-channel 1 Console (config-if)# 160 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 161
    ...is tftp://host/[directory]/filename. The host can be IPv4 address. An out-of-band IP address can be specified as described in the usage guidelines....destination for copies or files. You can copy a remote file to null to determine its size. xmodem: null: Dell PowerConnect 28xx Systems User Guide 161
  • Dell PowerConnect 2848 | User's Guide - Page 162
    ... mean that the copy process may fail. . Command: debug-mode To switch to debug mode, use the debug-mode command in Privileged EXEC mode. debug-mode Syntax Description This command has no arguments or keywords. Command Mode Privileged EXEC 162 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 163
    ... has no arguments or key words Command Mode All configuration modes Default value This command has no default setting. Example Console(config... exit command in any configuration mode. exit Syntax Description This command has no arguments or key words Dell PowerConnect 28xx Systems User Guide 163
  • Dell PowerConnect 2848 | User's Guide - Page 164
    Command Mode All configuration modes Default value This command has no default setting. Examples Console(config-if)# exit Console(config)# ... command. help Syntax Description This command has no arguments or key words Command Mode All command modes. 164 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 165
    ... are executed independently on each interface in the range: If the command returns an error on one of the interfaces, it will not stop the execution of the command on other interfaces. Dell PowerConnect 28xx Systems User Guide 165
  • Dell PowerConnect 2848 | User's Guide - Page 166
    ... mask is 255.255.255.0: Console (config)# interface vlan 1 Console (config-if)# ip address 131.108.1.27 255.255.255.0 ... configuration command. ip address ip-address Syntax Description • ip-address - The IP address to be assigned to the interface. 166 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 167
    ...-address - Valid IP address Defaults No default gateway is defined. Command Modes Global configuration Interface configuration Command:... packet_size] [count packet_count] [timeout time_out] Syntax Description • ip-address - IP address to ping. Dell PowerConnect 28xx Systems User Guide 167...
  • Dell PowerConnect 2848 | User's Guide - Page 168
    ... the size specified because the switch adds header information. packet_count - Number of packets to send, from 1 to 65535 packets. The default is 4 packets. ... 64 bytes from 10.1.1.1: icmp_seq=2. time=8 ms 64 bytes from 10.1.1.1: icmp_seq=3. time=7 ms 168 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 169
    ... This command has no default setting. Command: show tech-support command To display system and configuration information you can provide to the Technical Assistance Center when reporting a problem, use the show tech-support command. Dell PowerConnect 28xx Systems User Guide 169
  • Dell PowerConnect 2848 | User's Guide - Page 170
    ...data. config - (Optional) Displays switch configuration within the CLI commands supported on the device. Defaults By default, this command displays the output for ...bridge multicast address-table show ip igmp snooping groups show dot1x show dot1x users 170 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 171
    ... IP addresses. Parameters range • • community - 1 - 20 chars ip-address - Valid IP address Default No community is defined Command Mode Global configuration Dell PowerConnect 28xx Systems User Guide 171
  • Dell PowerConnect 2848 | User's Guide - Page 172
    ... The logical key of the command is the pair (community, ip-address). If ip-address is omitted then the key is (community, All-Ips). Examples Switch(conf)# snmp-... Example Console (config)# username bob password lee privilege 15 172 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 173
    ...A mechanism used with Half Duplex mode that enables a port not to receive a message. Backplane Ingress interfaces Source IP address and/or Source IP subnets converts IP addresses into physical addresses. ASIC Address Resolution Protocol. A TCP/IP protocol that The...
  • Dell PowerConnect 2848 | User's Guide - Page 174
    ... For more information about broadcast storms, see "Configuring Load Balancing". C CDB Bootstrap Protocol. Enables a workstation to discover its IP address, an IP address of a BootP server on a network, or a configuration file loaded into the boot of a ...
  • Dell PowerConnect 2848 | User's Guide - Page 175
    ... is authenticated by the RADIUS server, the user is automatically joined to the VLAN configured on the RADIUS server. E Central .... D Egress Ports Ports from which network traffic is transmitted. End System An end user ... address. DSCP DiffServe Code Point (DSCP). DSCP provides a method of tagging IP...
  • Dell PowerConnect 2848 | User's Guide - Page 176
    ...100 Mbps Ethernet standards. GVRP GARP VLAN Registration Protocol. Registers client stations into a VLANs. H FFT Fast Forward Table. Provides information about forwarding routes. If ... state is constantly changing. For example, an STP port constantly changes from listening to learning to forwarding....
  • Dell PowerConnect 2848 | User's Guide - Page 177
    .... Layer 2 Internet Protocol. Specifies the format of packets and there addressing method. IP addresses packets and forwards the packets to the correct port. IP Address Data Link Layer or MAC Layer. Contains the physical address of a client or server station. Layer 2 ...
  • Dell PowerConnect 2848 | User's Guide - Page 178
    ... that includes or excludes certain values, for example parts of an IP address. For example, Unit 2 is inserted in the first minute of ... same age. Media Dependent Interface with Crossover (MDIX). A cable used for hubs and switches. MIB Management Information Base. MIBs contain information describing...
  • Dell PowerConnect 2848 | User's Guide - Page 179
    ... consisting of protocol control information and layer user data. PING Packet Internet Groper. Verifies if a specific IP address is available. A packet is sent to another IP address and waits for a reply. Port Physical ports provide connecting components that allow ...
  • Dell PowerConnect 2848 | User's Guide - Page 180
    ....100 are part of the same subnet. Subnet Mask Used to mask all or part of an IP address used in a subnet address. Switch Filters and forwards packets between LAN segments. Switches support any packet protocol type. Segmentation Divides LANs into separate ...
  • Dell PowerConnect 2848 | User's Guide - Page 181
    ... V TCP/IP VLAN Transmissions Control Protocol. Enables two hosts to communicate and exchange ...large geographical area. Wildcard Mask Specifies which IP address bits are used, and which bits ...by linking a group of ports together to form a single trunk (aggregated groups). U UDP User Data Protocol...
  • Dell PowerConnect 2848 | User's Guide - Page 182
    182 Glossary
  • Dell PowerConnect 2848 | User's Guide - Page 183
    ... 81 Flow Control, 36 FTP, 176 A Access mode, 76 Address Resolution Protocol, 173 Aggregated link, 133 AH, 173..., 21 Downloading software, 80 DSCP, 147, 175 DVMRPl, 175 Dynamic Address List, 115 Dynamic VLAN Assignment, 97 G GARP, 176 GARP VLAN Registration Protocol, 176 GBIC, 176 General Attributes ...
  • Dell PowerConnect 2848 | User's Guide - Page 184
    ... mode, 160 Internetwork Packet Exchange, 177 IP, 177 IPM, 177 IPX, 177 ISIS, 177 Management Information Base., 178 Management security, ...Spanning Tree Protocol, 180 RDP, 179 Remote Authentication DialIn User Service, 179 Reset, 62-64 RMON, 144, 179 RSTP, 15, 180 Running Configuration file, 80 RVSP, ...
  • Dell PowerConnect 2848 | User's Guide - Page 185
    ... Storm control, 110 STP, 15, 117, 125 System, 59 VLAN membership, 126 VLAN Port Membership Table, 128 VLAN priority, 147 VLANs, 126 W...65 Tree view, 53 Trivial File Transfer Protocol, 181 Trunk Configuration Page, 106 Trust, 150 Web management system icons, 55 Weighted Round Robin, 151 Width, 21 U ...
  • Dell PowerConnect 2848 | User's Guide - Page 186
    186 Index



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Dell PowerConnect 2848 Manual