dell 2724 switch manual

dell 2724 switch manual

If you want to take It is advisable The switch changes to Web-managed mode and the Managed Mode LED will be illuminated green. In this mode, you can configure the switch using a Web interface. NOTE: When changing between the unmanaged and Web-managed modes, the switch is reset to the factory default settings. Pour utiliser les fonctions de gestion du commutateur, suivez les procedures ci-apres. Wenn Sie die Verwaltungsfunktionen des Switches nutzen wollen, folgen Sie den untenstehenden Anweisungen. Si desea beneficiarse de las funciones de administracion de este conmutador, siga los procedimientos siguientes. Page Count: 84 NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. Reproduction in any manner whatsoe ver without the written permission of Dell Inc.T rademarks used in this text: Dell, Dell OpenManage, t he DELL logo, and P owerConnect are trademarks of Dell Inc. Micr osoft is a re gistered trademark of Micro soft Corporation. Other trademarks and trade names may be used i n this document to refer to either the entities claiming the marks and names or t heir products. Dell Inc. disclaims any proprietary interest in trademarks and trade name s other than its own. Models PC2708, PC2716, PC2724, PC2748 October 2006 These P o we rConn ect devices ar e ideal fo r the small to medium business that r equires high performanc e network connectivity al ong with advanced web management features.The P owerConnect management fea tures ar e des igned to minimize administrative mana gement effort, while enhancing and improving network traffic control. Sy stem Description This section describes the hardware configurat ions of the P owerConnect 2708, P owerConnect 2716, P owerConnect 2724, and P owerConnect 2748. The switches are managed by Dell’s OpenManage Switch Administrator. 8 1-Gigabit Ethernet Port s The following figure illustrates the P owerConnect 2708 front panel. Figure 1-1.http://xn---71-2dd3afh7a.xn--p1ai/f/daikin-ceiling-air-conditioner-manual.xml

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PowerConnect 2708 Front Panel The P owerConnect 2708 switch supports 8 GbE copper ports. 1 HOL blocki ng queues packets, and the pack ets at the head of the queue are forwarded befor e packets at the end of the queue. By default, the device is configur ed so that the HOL blocking prevention mechanism is active at all times, ex cept when QoS (Quality of Service), Flow Control or Back P ressur e is ac tive on a port where the HOL blocking pr evention mechanism is disabled on the whole system. The switch does not have an IP address, nor is there a web management in terface and thus cannot be managed. This is the system default. Once enabled, it prevents users from making any further configuration changes to the switch. This is done by removing the IP address to the switch so that it beco mes inaccessible. In Se cure Mode the switch retains configuration through power cycles just like Managed Mode. T o use Secure Mode, the user puts the switch in Managed Mode, configures the switch as desired, and then switches to Secure Mode via the web interface. T o exit Se cur e Mode, the user presses the Managed Mode button. F rom Secur e Mode when the Managed Mode button is pr essed, the switch enters Managed Mode default configuration with the de fault IP address of 192.168.2.1. Back Pressure Support On ha lf-d upl ex l in ks, t h e re ce iv in g p or t p rev en ts bu ff er ov er fl ow s b y o cc up yi ng th e l in k s o t ha t it is unavailable for additional incoming traffic. The user may enable or disable this feature on a per-port basis. The def ault status on all ports is set to OFF. However, this applies to li nks operating at Half Duplex only. The auto negotiation function provides the means to ex change informat ion between two Ethernet swi tches that share a point-to-point link segment, and to automatica lly config ure both Ethernet switches to take maximum advantage of their transmission capabi lities.http://clientcashrewards.com/images/daikin-central-remote-controller-manual.xml

P ort adver tisem ent allows the system administrator to configure the port speeds advertised. Jumbo Frames Support Jumbo frames are frames with an MTU (Maximum T ransmission Unit) size of up to 10K bytes. The Jumbo F rames Support feature, utilizes the ne twork optimally by transp orting the same data using less frames. The main benefits of this facility are reduced transmission overhead and r educed host processing overhead. Jumbo frames ar e used for server -to-server transfers. Standard wiring for end stations is Media-Dependent Interface (MDI) and the s tandard wiring for hubs and switch es is known as Medi a-Dependent Interface with Cross over (MDIX). This feature is automatically enabled for the entire system and cannot be turned off by the us er. Flow Control Support (IEEE802.3X) On F ull Duplex li nks (FDX), the flow control mechan ism allows the receiving side to signal to the sending side that tran smission must be halted te mporarily, in order to pr event buffer overflows. Virtual Cable T es ting (VCT) VCT technology provides the mechanism to detect and r eport po tential ca bling issues, such as cable opens and cable shorts on copper links.Auto-Learning MAC Addresses The switch enables MAC addr ess auto-learning fr om incoming packets. The MAC addr esses are stored in the Bridging T able. Automatic Aging for MAC Addresses MAC addr esses from which no traffic is received for a given period of time are aged out. This prevents the Bridging T able from overflowin g. Managed and Secure Modes VLAN-aware MAC-based Switching In Managed or Secure mode, the switch system always pe rforms VLAN-aware bridging. Classic bridging (IEEE802.1D) is not performed (where frames ar e forwarded based only on their destination MAC address). However, a s imilar functionality may be configured for untagged frames. Addresses ar e associated with ports by le arning them from the incoming frames source address.

Unmanaged Mode Classic Bridging In Unmanaged Mode, the switch p erforms classic bridging. Frames are forwar ded bas ed on their destination MAC addr ess only, re ga rdl e ss of t he V LA N ta g. Layer 2 Features Port Mirrori ng The port mirroring mechanism monitors and mirro rs network traffic by forwarding copies of incoming and outgoing packets from a monitored port to a monitoring port. U sers can specify which target port receives copies of all traffic passin g through one or more source ports. Storm Control Storm Control enables limiting the amount of Multicast and Broadcast frames accepted and forwarded by the switch. When Layer 2 frames ar e forwar ded, Broadcast and Mu lticast frames are flooded to all ports on the r e levant VLAN. All no des connected to these ports accept and attempt to process these frames, thus placing load on both the network links and the host operating system. P ackets are classified as belonging to a VLAN based on either the VLAN tag or based on a combina tion of the ingress port and package contents. P ackets sharing common attributes can be grouped in the same VLAN. Port Based Virtual LANs (VLANs) P ort-based VLANs classify incomin g packets to VLANs based on their ingress port. Each of the six aggregated links may be defined with up to four member ports to form a single Link Aggregated Group (LAG). BootP and DHCP Clients DHCP (Dynamic Host Configuration P rotocol) enable s additional setup parame ters to be received from a network server upon system startup. DHCP service is an on-going process. DHC P is an extension to BootP. The BootP client is operational if ther e is a corrupted or invalid software image. The BootP client then continuously attempts to find a BootP server, by sending BootP reques ts to all ports on the default VLAN, until a BootP server replies. The information replied is the n used to provide the switch system with a TFTP server IP address and a d ownload file name.

The switch can then configure these values to the TFTP client and try to download a valid runt ime image. The underlying mechanism for supporting bandwidth manag ement and control is based on the use of multiple priority que ues for classifying traffic. The switch es support four queues per port. After a packet has been classified, it is assigned to one of the queues. No bandwidth reservations or limits are established or enforc ed. The 802.1p is a spin- off of the 802.1Q (VLANs) standar d. Ethernet Switch Management Featu res W e b-Based Management W ith a W eb-based management interface, the Et hernet Switches’ system can be managed from any W eb browser. The system contains an Em bedded W eb Server (EWS), which s erves HTML pages, through which th e system can be monitored and configured. Remote Monitoring Remote Monitoring (RMON) is an extension to the Si mple Network Management P rotocol (SNMP), which provides network traffic statistics. RMON defines current and historical MAC- layer statistics and contr ol objects, allowing real-t ime information to be captured across the entire network. The switches support on e RMON group for Ethe rnet stat istics. The system provides a means to collect the statistics defined in RMON and to view the results, using the W eb management interface in the system.These ports support auto- negotiation, duplex mode (Half or F ull duplex), and flow control. The combo 1000 Mbps optical ports can only operate at 1000 Mbps, full-duplex mode. On each port there ar e LEDs (Light Emitting Diode) to indicate the port status. On the left side of the front panel is the Mana ged Mode LED which indicates the Ethernet switch operational status. Th e P ower LED on the front panel indicates whether the device is powered on or not. A Managed Mode pu sh-button, located on the rig ht side on the front panel, restor es the device’s default settings configuration. On each port there ar e LEDs to indicate the port status.

The P ower LED on the front pa nel indicates whether the device is power ed on or not. A Managed Mode pu sh-button, located on the rig ht side on the front panel, restor es the device’s default settings configuration. Figure 2-4. PowerConnect 2716 Back Panel On each port there ar e LEDs to indicate the po rt status. There ar e two SF P (Small F orm-F actor Plugable) ports, designated as ports 23 and 24, for fiber connection. NOTE: Only one of the two phy sical connections of a combo port can be used at any one time. Port features and port controls are determined by the phy sical connection used. The sy stem automatically detects the media used on a combo por t, and utilizes the information in all the control interfaces. NOTE: The sy stem can switch from the RJ-45 to the SFP (o r vice versa) without resetting the device. If both RJ-45 and SFP ports are present, the SFP port will be the active port, whereas the RJ-45 port will be disabled. The P ower LED on the front panel indicates whether the device is powered on or not. A Managed Mode push-button, located on th e far right side on the front panel, restor es the device’s default settings configuration. Figure 2-6. PowerConnect 2724 Back Panel On each port, ther e are LEDs to indicate th e port status. There ar e four SFP (Small F orm- F actor Plugable) ports, designated as ports 45, 46, 47 and 48, for fiber connection. The sy stem automatically detects the media used on a combo port, and utilizes the information in all the control interfaces. On the top right side of the front panel is the Managed Mode LED, which indicates the Ethernet switch operational status. The F an LED indicates the device fan operations stat us and the P ower LED on the front panel indicates wh ether the device is po wer ed on or not. A Managed Mode push-button, locate d on the far right side on the front panel, sets the device management mode. The back panel contains an AC P ower Supply Interface.

The following figure illustrates the back panel of the P owerCon nect 2748 device. Figure 2-8. PowerConnect 2748 Back Panel The following table describes the Managed Mode LED indications. T able 2-1. Power LED Indications LED Color Description Green Solid The switch is turned on. Off The switch is not turned on. The following table describes the fan status LED indications. Green Solid Indicates the switch is in Managed Mode. Amber Solid Diagnostics has failed. Amber Flashing No valid image. Off Indicates Unmanaged mode or Secure mode (2748 only). T able 2-3. Fan LED Indications LED Color Description Green Solid All fans ar e operating correctly. Red Solid One or more fans have failed. The Managed Mode button is for changing between Managed Mode and Unmana ged (or Secure) Mode. After a change from Unmana ged (or Secure) Mode to Managed Mode, the switch restor es the configuration va lues to factory default settings. Green Flashing The port is transmitting or receiving data at 1000 Mbps. Amber Static The port is linked at either 10 or 100 Mbps. Amber Flashing The port is transmitting or r eceiving data at 10 or 100 Mbps. Off The port is currently not operating Right LED Green Static The port is currently transmitting in F ull Duplex mode. Off The port is operating in Half Duplex mode. T able 2-5. SFP LED Indications LED Color Description Green Static Link is established. Green Flashing Activity is occurring. Off No link is established. The P owerConnect 2708 and P owerConnect 2716 devices have no internal fans. Cables, Port Connections, and Pinout Information This section explains the switch physical interf aces, and provides information abou t cables and port connections. Copper cable diagnostics are su pported. High-speed workstations, hubs, routers, or other switches are connected through standard RJ-45 connectors to the sw itch physical interface ports, located on the front panel.

F or each device, the supported mode is set to Half Duple x, F ull Duplex, and A u to. 1000BASE-T Cable Requireme nts All Category 5 UTP cables that are used for 1 00BASE- TX connections also operate with 1000BASE- T, provided if all four wire pairs are connected. However, it is recommended that enhanced Category 5 (Category 5e)cable i s used for all criti cal connections or any new cable instal lations.The sys tem can sw itch from the RJ-45 to the SFP (or vice versa) without a system r eset. The system automaticall y detects the medi a used on a combo port, and utilizes this information in the control interfaces. P owerConnect 2724 switch supports SFP diagnostic s. The optical transceiver provides access to a set of parameters that can be monitored and displayed to the system administrator. NOTE: If both RJ-45 and SFP ports are present, the SFP port will be the active port, whe reas the RJ-45 port will be disabled and ignored.The internal power supp ly supports input voltages b etween 100 and 240 V A C. Th e AC power connector is located on the back panel of the switch.Do not service any Ethernet device ex cept as explained in the system documentation. Opening or removing covers marked with a triangular symbol with a lighting bolt may cause electrical shock. The process of installing the P owerConnect s witch consists of both hardwar e and software instructions. The process consists of physically installing thes e devices a nd configuring them. The switch is delivered from the factory in Unmana ged Mode. If the user wi shes to use the sw itch as an unmanaged sw itch, they can simply pl ug the switch in and start u sing it. No configuration is necessary. If the user wishes to use the switch as a mana ged switch, they n eed to change the switch Unpacking NOTE: Before unpacking the device, inspect the packaging and report any evidence of damage immediately to Dell.

Safety CAUTION: Never remove the cover on a power supply or any part that has the following label attached. Figure 3-1. Caution Label CAUTION: Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts insi de these components. If you suspect a problem with one of these parts, contact a service technician. T o avoi d damage, keep static- sensitive Ethernet switches in their static-protective packages until they are ready to be installed. If it is necessary to set t he Ethernet switch down, p lace it in its static-protective package. NOTE: An ESD strap is not provided, however it is recommended to wear one for the following procedure. 1 Place the box on a clean flat surface. 2 Open the box or remove the box top. 3 Carefully r emove the device from the package and place it on a secure, stable and clean surface. 4 Remove all packing material. 5 Inspect the device and accessories for damage. Report any damage immediately to Dell. Opening or removing cove rs marked with a triangular symbol with a lighting bolt may ca use electric al shock. T o determine the possibility of ov erloading the supply circ uits, add together the ampere ratings of all devices in stalled on the same circuit as the device.The section describes how to install a single device as a stand- alone device. Installing the Device in a Rack CAUTION: Disconnect all cables from the unit before mounting the device in a rack or cabinet. CAUTION: When mounting multiple devices into a rack, mount the devic es from the bottom up. T o install the device in a rack, perform the following: 1 Place the supplied rack-mounting bracket on on e side of the device ensuring the mounting holes on the device line up to the mo unting holes on the rack mounting bracket. The following figure illustrates where to mount the brackets. Figure 3-2.

Bracket Installation for Rack Installation 2 Insert the supplied scre ws into the rack mo unting holes and tighten with a screwdriver. 3 Repeat the process for the rack-mounting bracket on the other side of the device. 4 Insert the unit into the rack, ensuring that the rack-mounting holes on the device line up to the mounting hole on the rack. 5 Secure the unit to the rack with the rack screws (not provided). F asten the lower pair of screws before the upper pair of screws. This ensures that the weig ht of the unit is evenly d istributed during installation. En sure that the device ventilation holes are not obstructed. The surface must be able to support th e weight of the device and the device cables. 1 Attach the self -adhesive rubber pads (provided with the device) on each marked location on the bottom of the chassis. 2 Set the device on a flat surface, while leaving 5.08 cm (2 inches) on ea ch side, and 12.7 cm (5 inches) at the back. 3 Ensure that the device has proper ventila tion. Installing the Device on a W all 1 Place the supplied wall-mounting bracket on one side of the device, ensuring that the mounting holes on the device line up to the mountin g holes on the rack-mounting bracket. The following figure illustrate s where to mount the brackets. Figure 3-3. Bracket Installation for Wall Mounting 2 Insert the supplied screws into the rack-m ounting holes and tighten with a screwdriver. 3 Repeat the process for the wall-mounting brack e t on the other side of the device. 4 Place the device on the wall in the loca tion where the device is being installed. 5 On the wall mark the locations where the scre ws to hold the device must be prepar ed. 6 On the marked locations, drill the holes and place all plugs (not provided) in the holes. Ensure that the ventilation holes are not obstructed. Figure 3-4. Mounting Device on a Wall Connecting the Device to AC Power Supply 1 Using a 5-foot (1.

5 m) standard power cable with sa fety ground connected, connect the power cable to the AC connector located on th e back panel. Connecting the Devi ce to the Network T o connect to an uplink port, use Category 5 Unshielded T wisted-P air (UTP) cables with RJ-45 connectors at both en ds. Standard straight-through twisted-pair cables can b e used to connect to any other Ethernet network (syste ms, servers, switches or routers) that supports auto-negotiation. NOTE: Do not plug a phone jack connector into an RJ-45 port. This will damage the Ethernet device. Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards. NOTE: If autonegotiation is turned off on the ports, a straight through cable must be used. T o connect the switch to the network: 1 Attach one end of a T wiste d-P air cable to the device’s RJ-45 connector and the other end to a switch or server. 2 Make sur e each T wisted P air cable does no t ex ceed 100 meters (328 ft.) in length. As each connection is made, the (green or amber) Link LED corresponding to each port on th e device is illuminated ind icating that the connection is valid. If a critical problem is detected, the program flow stops. Th e boot process runs ap proximately 10 seconds. The Managed Mode LED indicates whether POST ha s passed success fully or failed. When POST completes successfully, the Managed Mode LED indi cator is of f if in Unmanaged Mode, and solid green if in Managed Mode. When a critical prob lem is detected, the P OST process fails and the Managed Mode LED indicator turns solid amber (P owerConnect 2748). Initial Configuration The switch is delivered from the factory in Unma naged Mode. This section describes how to enter Managed Mode and configure the switch. If the u ser wishes to use the sw itch as an unmanaged switch, they can simpl y plug the switch in and s tart using it. No conf iguration is necessary.

The P owerConnect device provides you the flexibility of basic network connectivity without significant effort or advanced netw ork connectivity with web-managed features and funtionality. If you re quire basic connectivity and do not want to manage these devices, once you have powered up the device and connected your network cabling you may stop there. If you desire to manage the device, you will need to follow the instructions d e tailed here in the r ema ining sections of this chapter.The switch supports the following browsers: Microsoft IE V6.x and higher, and Mozi lla. The system internall y configures the device according to W eb-based input (including menu se lections, mouse clicks, etc.). The device is delive red in Unmanaged Mode. The device must be changed to Managed Mode before it can be configured. T o change to Managed Mode, the device mus t be fully operational in Unmanaged Mode (Managed Mod e LED has stopped blink ing and is off). O nce the Managed Mode LED has stopped b linking, press the Managed Mode button. The switch reboots and the Managed Mode LED blinks for approximately 90 se conds and stays lit. When the Managed Mode LED stays lit, the switch is read y to be configur ed. The defaul t IP addr ess is 192.168.2.1, the default User Name i s 'admin', and the def ault password is left blank. The following login screen is displ aye d when the device is first connecte d: Figure 4-1. Login Screen 1 Enter admin in the User Name field. 2 Leave the P assw ord field blank (for first time Managed Mode access). 3 Click OK. T o change Us er name and P assword, see Local User Database. On first deployment of the device (after the device is initially connected wi th the default settings), it is advisable to configure the device with new configuration parameters. T o configure the switch with new system-spe cific parameters, perform the following steps: 1 Open the IP Addressing window in the EWS.

The switch is configured with the updated configuration parameters. The tree view provides an expandable view of the features and their components. Figure 5-1. Switch Status The functions in the tree view provide a view of all the components under a specific feature. 2 The Ethernet switch view provides information about switch ports, current configuration and status, table information, and feature components. Depending on the option selected, the ar ea at the bottom of the Ethernet switch view displays other Ethernet switch information or dialog boxes for configuring parameters. 3 The information buttons provide access to information about the E thernet switch and access to Dell Support. PowerConnect Swi tch Management Buttons The P owerConnect Switch Management b uttons provide an easy method of confi guring the switch information. The following table mentions the switch management buttons available. T able 5-2. Information Buttons Button Description Support Opens the Dell Support page at support.dell.com. Help Online help containing information to assist in configuring and managing the Ethernet switch. The online help pages are link ed directly to the page curr ently open. F or example, if the IP Addressing page is open, the help topi c for that page opens when Help is clicked. About Contains the version and build number and Dell copyright information. Log Out Logs out of the application and closes the browser window. NOTE: The Ethernet switch is configured with a default IP address, user login and password. Activating the Managed Mode button recovers the factory defaul t setting (no password). NOTE: Passwords are both case-sensitive and alphanumeric. 4 Click OK. The Dell P owerConnect OpenManage Switch Administrator home page opens. T able 5-3. PowerConnect Switch Management Buttons Button Description Apply Changes Applies changes to the Ethernet Switch. Ref re sh Refreshes Ethernet Switch information.

Pr i n t Pr i n t s t h e Network Management System page or table information. T o open the Reset page, click Res e t in the tree view. Figure 5-2. Reset 1 Click Res et. A confirmation message displays. 2 Click OK. The device is reset. When the system retrie ves vast amounts of configuratio n data, the data is divided into groups. The system administrato r can peruse the config uration information by either se lecting a specific interface or using the Previ ous and Next links. The following screen displa ys an example of data display on demand: Figure 5-3. Data Display on Demand Example Defining Switch Information Viewing the Switch Status The Switch Status page contains parameters for configuring and viewing general switch information, including the Product Name, F irmware V ersion, the system MAC Address, Asset T ag, Service T ag, System Name, L ocation Name, Serial Number, and System Up Time. T o open th e page, click Switch Status in the tree view. Figure 6-1. Switch Status P roduct Name — Defines the name of the product. F irmware V ers ion — Defines the version of the product firmwar e. Boot V ersion — Displays the current boot version running on the device. MAC Address — Specifies the switch MAC address. Service T ag — The service refer ence number used when servicing the switch. System Name (0-32 Characters) — Defines the user-defined switch name. Location Name (0-32 Characters) — The location where the system is curr ently running. Serial Number — Specifies the device’s unique serial number, as signed by the manufacturer. System Up T ime — Specifies the amount of time since the last switch r eset. The system time is displayed in the following format: Days, Hours, Minu tes, and Seconds. F or e xampl e, 41 days, 2 hours, 22 minutes, and 15 seconds. Secure Mode (2748 only) — When checked, en ables the secure mode. The default is unchecked (disabled).

As soon as Apply Changes is clicked, the current configuration will be saved and th e device will become Secure and will no longer be able to be configured. Defining Switch Information: 1 Open the Switch Status page. 2 Define the fields. 3 Click Apply Changes. The switch status parameters are defined, and the switch is upd ated. Viewing Sy stem IP Address The IP Addressing page enables to manually set the static IP Ad dress, Subnet Mask and the device’s static Default Ga teway Address. When the Dynamic Host Configuration Protocol (DHCP) client is enabled, the switch requests from the DHCP server to assi gn a dynamic IP Address, Subnet Mask Address, and Default Ga teway Address to manage the device. The IP Address, Subnet Mask and Default Gateway are th en set dynamically. When the DHCP Address is applied, the switch is confi gured accor ding to the new IP and Default Gateway ad dresses r eceived from the DHCP server. T o open the page, click IP Addressing in the tree view. The DHCP default value is Disable. This field enabl es the DHCP cl ient. IP Address — Specifies the static IP Address currently assigned to the device. Subnet Mask — Specifies the subnet mask of the static IP Address, curr ently assigned to the device. Default Gateway — Specifies the static Default Gateway Address, currently assigned to the device. DHCP IP Address — Specifies the IP Address r eceived from the DHCP server. DHCP Mask — Specifies the Subnet Mask received from the DHCP server. DHCP Default Gateway — Defines the Default Gateway Address r eceived from the DHCP server. Apply DHCP Address — Activates the IP Address, Subnet Mask Address, and Default Gateway Address, r eceived from the DHCP server. Updating Static IP Address 1 Open the IP Addressing page. 2 V erify that the DHCP field is Disable. 3 Manually enter the IP Address, Subnet Mask and Default Gateway fields. 4 Click Apply Changes. The system Static IP address para meters are applied to the switch.