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Lenovo RackSwitch G8272 Installation Manual

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Lenovo RackSwitch G8272
Installation Guide
For Lenovo Network Operating System

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  Summary of Contents for Lenovo RackSwitch G8272

  • Page 1 Lenovo RackSwitch G8272 Installation Guide For Lenovo Network Operating System...
  • Page 2 LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925. Lenovo and the Lenovo logo are trademarks of Lenovo in the United States, other countries, or both.
  • Page 3: Table Of Contents

    Other Important Safety Notices ..... RackSwitch G8272 ..... . . 17 Port Configuration .
  • Page 4 Installing the G8272 in a Lenovo System x or Power Rack..42 Installing the G8272 in a Lenovo iDataPlex Rack... . 46 Installing the Air-Duct Option ....49 Installing Port Connectors .
  • Page 5 Power Specifications ......116 Switching Performance ......117 © Copyright Lenovo 2019 Contents...
  • Page 6 Lenovo G8272 Installation Guide...
  • Page 7: Safety Information

    Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet. Przed zainstalowaniem tego produktu, należy zapoznać się z książką “Informacje dotyczace bezpieczeństwa” (Safety Information). Antes de instalar este produto, leia as Informações sobre Segurança. Перед установкой продукта прочтитe инcтрyкции по тexникe безопасности. © Copyright Lenovo 2019 Safety Information...
  • Page 8 Pred inštaláciou tohto zariadenia si prečítajte Bezpečnostné predpisy. Pred namestitvijo tega proizvoda preberite Varnostne informacije. Antes de instalar este producto, lea la información de seguridad. Läs säkerhetsinformationen innan du installerar den här produkten. Bu ürünü kurmadan önce güvenlik bilgilerini okuyun. Youq mwngz yungh canjbinj neix gaxgonq, itdingh aeu doeg aen canjbinj soengq cungj vahgangj ancien suisik.
  • Page 9: Safety Instructions

    To prevent electric shock, do not remove the cover of this product. There are no  user-serviceable parts inside. This unit contains hazardous voltages and should only be opened by a trained and qualified technician.  Do not work on equipment or cables during periods of lightning activity. © Copyright Lenovo 2019 Safety Information...
  • Page 10: Rack-Mount Safety Precautions

     Check to see if there are any exposed copper strands coming from the installed wire. When this installation is done correctly there should be no exposed copper wire strands extending from the terminal block. Any exposed wiring can conduct harmful levels of electricity to persons touching the wires. ...
  • Page 11: Safety Statements

    Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Appareil À Laser de Classe 1 © Copyright Lenovo 2019 Safety Information...
  • Page 12 Statement 5 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
  • Page 13 Connect and disconnect cables as described in the following table when  you install, move, or open covers on this product or attached devices. © Copyright Lenovo 2019 Safety Information...
  • Page 14 Multiple devices extended into the service position can cause your rack cabinet to tip.  If you are not using the Lenovo 9308 rack cabinet, securely anchor the rack cabinet to ensure its stability. G8272 Installation Guide...
  • Page 15: Other Important Safety Notices

    This product is also designed for IT power distribution systems with phase-to-phase voltage of 230V. This product is not intended for use in the direct field of view at visual display workplaces. Machinenlärminformations-Verordnung—3. GPSGV, der höchste Shalldruckpegel beträgt 70 dB (A) oder weniger. © Copyright Lenovo 2019 Safety Information...
  • Page 16 G8272 Installation Guide...
  • Page 17: Rackswitch G8272

    Chapter 1. RackSwitch G8272 This Installation Guide provides information about the Lenovo RackSwitch Lenovo RackSwitch G8272 (referred to as G8272 throughout this document). The G8272 is a 1U rack-mountable aggregation switch with unmatched line-rate Layer 2 performance. The G8272 uses a wire-speed, non-blocking switching fabric that provides simultaneous wire-speed transport of multiple packets at low latency on all ports.
  • Page 18: G8272 Documentation

    The console output described or referenced in this document might differ slightly from that displayed by your system. Output varies according to the type of Lenovo chassis and the firmware versions and options that are installed. Notices and Statements in this Document The following notices and statements are used in this document: ...
  • Page 19 Command Reference guide for your specific switch and its installed firmware. For a list of compatible switch components and options (such as rack-mounting kits, modules, cords, and cables), see the Lenovo Networking Catalog. © Copyright Lenovo 2019 Chapter 1: RackSwitch G8272...
  • Page 20: Typographic Conventions

    Typographic Conventions The following table describes the typographic styles used in this book. Table 1. Typographic Conventions Typeface or Meaning Example Symbol ABC123 View the readme.txt file. This type is used for names of commands, files, and directories used within the text. G8272# It also depicts on-screen computer output and prompts.
  • Page 21: Switch Components

    Chapter 2. Switch Components This chapter describes the G8272 hardware components. © Copyright Lenovo 2019...
  • Page 22: Switch Unit

    The following illustrations show the features on the front and rear of the switch. Figure 1. RackSwitch G8272 front panel Management Panel SFP+ Ports QSFP+ Ports Figure 2. RackSwitch G8272 management panel detail RJ45 Management Port Reset Button USB Port...
  • Page 23: Management Panel

    Table 2. Switch mini-USB port connector pin assignments Pin Number Function No connect SIN (RS-232 Input) SOUT (RS-232 Output) No connect GND (Ground) © Copyright Lenovo 2019 Chapter 2: Switch Components...
  • Page 24: Rj45 Management Port

    RJ45 Management Port The RJ45 management port on the front panel supports 10/100/1000 Mbps BASE-T, in-line switch management. To attach an RJ45 connector to the switch, push the RJ45 cable connector into the port connector until it clicks into place. To disconnect the RJ45 cable, squeeze the release tab and gently pull the cable connector out of the switch connector.
  • Page 25: System Status Leds

    Files can be copied from the USB drive to the switch, but copying files to the NTFS formatted USB drive results in failure. For more information about using the USB drive, see the Lenovo RackSwitch G8272 Application Guide. © Copyright Lenovo 2019...
  • Page 26: Connecting To The Switch

    Connecting to the Switch Use the switch Command-Line Interface (CLI) to perform additional configuration tasks. You can access the CLI using the serial console port or management port. Using the Serial Console Port You can access the switch CLI through the serial console port on the front panel of the switch.
  • Page 27: Switching Ports

    Six 40 GbE Quad Small Form-factor Pluggable Plus (QSFP+) ports are located on the front panel. A QSFP+ port can be configured into four 10 GbE breakout ports. By default, the G8272 has its QSFP+ ports 49 to 54 configured at 40 GBit/s. © Copyright Lenovo 2019 Chapter 2: Switch Components...
  • Page 28: Qsfp+ Leds

    QSFP+ LEDs Status LEDs for the QSFP+ ports are described in the following table. Table 6. QSFP+ port status LED behavior State Functional Meaning Steady Green Link up Link Flashing Green Packet transmitting or receiving Link down or port disabled G8272 Installation Guide...
  • Page 29: Rear Panel

    Note: The port side of the switch is considered the Front Panel and the power supply and fan modules side is considered the Rear Panel. Fan LEDs If there is a failure of one or more fans, the front panel Fan LED flashes. © Copyright Lenovo 2019 Chapter 2: Switch Components...
  • Page 30: Power Supply

    The rear panel of the G8272 has two bays for hot-swap power supply modules. Each power supply module has an individual IEC 320 C14 power connector. The power cord attaches to a universal grounded AC power source. Compatible power options are listed in the Lenovo Networking Catalog. Statement 5 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device.
  • Page 31 There is no power switch on the G8272 power modules; the switch powers up when power is supplied through the power cord to one or both power supplies. © Copyright Lenovo 2019 Chapter 2: Switch Components...
  • Page 32: Power Leds

    Power LEDs On the front of the switch, the Power LED on the management panel indicates the general status of the power supplies. The LED flashes when only one power cord is connected, and is steady when both power cords are connected (see “System Status LEDs”...
  • Page 33: Installing G8272 Hardware And Options

    Installing the switch in one of the supported rack types “Installing the G8272 in a Standard Equipment Rack” on page 39  “Installing the G8272 in a Lenovo System x or Power Rack” on page 42  “Installing the G8272 in a Lenovo iDataPlex Rack” on page 46 ...
  • Page 34: Before Installing The G8272

    Print this page and record product information below. Keep the information in a safe place for future reference. You need this information when you register the switch or open a service call with Lenovo. Table 8. Important product information...
  • Page 35: Required Tools

    Electrostatic discharge wrist strap  Package Contents The basic G8272 package contains the following items:  One RackSwitch G8272 unit with front-to-rear or rear-to-front airflow  One two-post mounting kit for standard 19” equipment racks: Two mounting brackets  Screws to attach brackets to the switch unit ...
  • Page 36: Preventing Electric Shock

    Preventing Electric Shock This product does not contain any user-serviceable parts. Do not remove the cover of this device. The G8272 AC power module is designed to work with single-phase power systems that have a grounded neutral conductor. For your safety, a power cord with a ground attachment plug is available to order for use with this product.
  • Page 37 3. Remove all cables from the 4. Attach signal cables to other devices. devices. 5. Connect power cords to their sources. 6. Turn ON all the power sources. © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 38: Handling Static-Sensitive Devices

    Handling Static-Sensitive Devices Attention: Static electricity can damage the switch and other electronic devices. To avoid damage, keep static-sensitive devices in their static-protective packages until you are ready to install them. To reduce the possibility of electrostatic discharge, observe the following precautions: ...
  • Page 39: Installing The G8272 In A Rack

    For a standard 19-inch equipment rack, use the 2-post rack mounting brackets and screws included with the switch. Installation instructions begin on page For a Lenovo System x or Power 4-post rack, use the Lenovo Adjustable 19”  4-Post Rail Kit. This kit must be purchased separately. Installation instructions...
  • Page 40 Statement 26 CAUTION: Do not place any object on top of rack-mounted devices. To install the G8272 in a standard equipment rack, complete the following steps: 1. Locate, record, and retain the product switch information in order to configure and register your product.
  • Page 41 7. Initialize the switch. See Chapter 5, “Initializing the G8272“, on page 8. If the switch is a replacement unit, set Vital Product Data (see “Configuring Vital Product Data” on page 70). © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 42: Installing The G8272 In A Lenovo System X Or Power Rack

    Installing the G8272 in a Lenovo System x or Power Rack This section describes how to install the G8272 in a Lenovo System x or Power 4-post rack, using the Lenovo Adjustable 19” 4-Post Rail Kit. This kit must be purchased separately. It includes the following parts: Table 10.
  • Page 43 3. Attach the front mounting brackets (Item 1) to each side of the switch with M4 screws (Item 2). Torque the screws to approximately 2.0 newton-meters (Nm) ± 0.1 Nm (17.7 inch-pounds). © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 44 4. From the front, slide the switch into the rack at the desired height. 5. Secure the switch to the front rack posts with M6 screws (Item 3), washers (Item 10), and either clip nuts (Item 4) or cage nuts (Item 5). Torque the screws to approximately 5.7 Nm ±...
  • Page 45 11. Initialize the switch. See Chapter 5, “Initializing the G8272“. 12. If the switch is a replacement unit, set Vital Product Data (see “Configuring Vital Product Data” on page 70). © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 46: Installing The G8272 In A Lenovo Idataplex Rack

    Installing the G8272 in a Lenovo iDataPlex Rack This section describes how to install the G8272 in a Lenovo iDataPlex rack. The iDataPlex mounting kit allows the switch to be mounted either horizontally or vertically. The kit must be purchased separately. It includes the following parts: Table 11.
  • Page 47 M4 screws (Item 2). Torque the screws to approximately 2 newton-meters (Nm) +/- 0.1 Nm (17.7 inch-pounds). 4. From the front, slide the switch into the rack at the desired height. © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 48 5. Secure the switch to the front rack posts with M6 screws (Item 3), washers (Item 5), and clip nuts (Item 4). Torque the screws to approximately 5.7 Nm +/- 0.1 Nm (50 inch-pounds). 6. Attach the rear alignment plate (Item 7) to the rear rack posts with M6 screws (Item 3), washers (Item 5), and clip nuts (Item 4).
  • Page 49: Installing The Air-Duct Option

    If the switch has an undesirable amount of sag, it is recommended to use a 4-post mounting kit. Attention: For earthquake stability, mount the switch in a 4-post rack. © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 50 Statement 26 CAUTION: Do not place any object on top of rack-mounted devices. To install the 1U air-duct option in a 19” rack, complete the following steps: 1. Loosen and remove the mounting screws from both sides of the mounting rail and set them aside to reuse for securing the foam carrier in the next step.
  • Page 51 5. Plug the power cords into their respective G8272 power connectors and using tie wraps, secure the power cords to the mounting rails. Power connection Tie wraps Tie wraps Power connection © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 52 6. Gently slide the air-duct unit side flanges into the card guides until the unit is seated firmly. Make sure that the foam strip is oriented on top. Foam Card guides thumbscrews Side flanges 7. Secure the air-duct unit to the air-duct brackets with the two M4 thumbscrews. G8272 Installation Guide...
  • Page 53: Installing Port Connectors

    (DAC) cables and Active Optical Cables (AOC). Note: This section covers the basic types of connectors that can be installed on the switch. We recommend you to consult the Lenovo Networking Products and Options Catalog for the full list of supported transceivers, DACs or Active Optical Cables cables.
  • Page 54: Installing A Transceiver

    Installing a Transceiver Note: To avoid damage to a transceiver, do not connect the cable before you install the transceiver. Statement 3 CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following: Do not remove the covers.
  • Page 55 To remove a transceiver, disconnect the cable, and pull down the bail clasp, if any. This releases the transceiver. After you remove the transceiver, cover it using its safety cap. © Copyright Lenovo 2019 Chapter 3: Installing G8272 Hardware and Options...
  • Page 56 G8272 Installation Guide...
  • Page 57: Removing And Replacing Components

    Removing the switch from one of the supported rack types “Removing the G8272 from a Standard Equipment Rack” on page 65  “Removing the G8272 from a Lenovo System x or Power Rack” on page 66   “Removing the Air-Duct Option” on page 69 ...
  • Page 58: Removing Port Transceivers

    Removing Port Transceivers Statement 3 CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:  Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.
  • Page 59: Removing And Replacing A Power Supply Module

    For proper airflow when operating the switch with only one power supply module, the empty power supply bay must be closed by a blank power filler plate. © Copyright Lenovo 2019 Chapter 4: Removing and Replacing Components...
  • Page 60: Removing The Power Supply Module

    Removing the Power Supply Module Statement 5 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
  • Page 61: Replacing The Power Supply Module

     Connect and disconnect cables as described in the following table when you install, move, or open covers on this product or attached devices. © Copyright Lenovo 2019 Chapter 4: Removing and Replacing Components...
  • Page 62 To Connect: To Disconnect: 1.Turn OFF all power sources and 1.Turn OFF all power sources and equipment that is to be attached to equipment that is to be attached to this product. this product. For ac systems, remove all power ...
  • Page 63: Removing And Replacing A Fan Module

    “Getting Help and Technical Assistance“ to help you gather all the required information that is necessary to return a component. After you remove the component, securely pack the component for shipping. © Copyright Lenovo 2019 Chapter 4: Removing and Replacing Components...
  • Page 64: Replacing The Fan Module

    Replacing the Fan Module To replace a hot-swap fan module, complete the following steps: 1. Select an empty fan module bay on the rear of the switch. If the target bay is covered by a blank fan filler plate, loosen the retainer screw and slide the filler plate out of the slot.
  • Page 65: Removing The G8272 From A Standard Equipment Rack

    5. Loosen and remove the M4 screws attaching the mounting bracket on each side of the switch. 6. If replacing the unit with another G8272, see “Replacing the G8272” on page © Copyright Lenovo 2019 Chapter 4: Removing and Replacing Components...
  • Page 66: Removing The G8272 From A Lenovo System X Or Power Rack

    Removing the G8272 from a Lenovo System x or Power Rack This section describes how to remove the G8272 from a Lenovo System x or Power 4-post rack. To remove the G8272 from a System x or Power rack, complete the following steps: 1.
  • Page 67 5. Slide the rear mounting brackets out of their slots in the front mounting brackets. 6. Loosen and remove the M6 screws, washers, and clip nuts (or cage nuts) connecting the front mounting brackets to the front rack posts. © Copyright Lenovo 2019 Chapter 4: Removing and Replacing Components...
  • Page 68 7. Slide the G8272 unit out of the rack. 8. Loosen and remove the M4 screws that attach the front mounting brackets to each side of the switch. 9. If replacing the unit with another G8272, see “Replacing the G8272” on page G8272 Installation Guide...
  • Page 69: Removing The Air-Duct Option

    Removing the Air-Duct Option The G8272 supports an optional 1U air duct to maximize air flow conditions in a Lenovo Power Systems Group rack. To remove an installed 1U air-duct option from a 19” rack, complete the following steps. 1. Loosen the M4 thumbscrews securing the air-duct unit to the mounting brackets.
  • Page 70: Replacing The G8272

    Replacing the G8272 Preparing and Returning the G8272 If replacing the G8272, remove all associated components and options according to the instructions in this chapter. Remove and retain clips, cords, cables, modules, caps or blanks, air-duct option (if installed), and any mounting hardware. These items can then be reinstalled on the replacement unit.
  • Page 71 3. Set the new switch to use the Machine Type-Model (MTM) number of the old unit: Lenovo Enterprise Network Operating System (ENOS):  G8272(config)# boot mtm 1234-56X New MTM value: 1234-56X Please reset the system for the new changes to take effect Lenovo Cloud Network Operating System (CNOS): ...
  • Page 72 LENOVO G8272 System Manufacture Date: 1304 System Serial Number: XX01234567 For more information about using the switch interface, see the Application Guide and Command Reference for the G8272 and its corresponding Lenovo Network Operating System and firmware version. G8272 Installation Guide...
  • Page 73: Initializing The G8272

    The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. © Copyright Lenovo 2019...
  • Page 74: System Status Leds

    System Status LEDs The following LEDs on the switch front panel indicate the overall system status:  Power - Steady green if the power supply modules are on and operational, flashing green in case of a power supply failure, or off in case of a total power supply failure.
  • Page 75: Logging Into The Switch

    Notes:If the switch has already started prior to your connection, you may need to press Enter to display the password prompt. After successfully logging into the switch, the following CLI prompt is displayed: NOS 10.8.5.0 Lenovo ThinkSystem G8272 RackSwitch, Oct 23 01:27:54 2018 G8272> © Copyright Lenovo 2019...
  • Page 76: Changing The Default Network Administrator Password

    Changing the Default Network Administrator Password After logging onto the switch for the first time, a screen prompt appears requesting you to change the default network administrator password. You are required to change your default 'admin' user password immediately Changing password for admin. Current Administrator password: Choose a strong password (Min 8 chars, at least 1 uppercase, 1 lowercase, 1 number etc.)
  • Page 77: Default Configuration Files

    To reset the switch to its factory defaults, you can use one of the following methods:  Use the CLI to reset the switch to factory defaults: Lenovo Enterprise Network Operating System (ENOS):  Method 1: Configure the switch to boot using the factory configuration block: G8272>...
  • Page 78 Enter y at the prompt to confirm the erasing process and then reload the switch: G8272# reload  If using Lenovo Enterprise Network OS, press and hold the reset button for more than five seconds. For more details, see “Reset Button” on page Using the Management Boot Menu by selecting Change configuration to ...
  • Page 79: Configuring The Management Interface For Remote Access

    Telnet, use the following command: G8272> enable G8272# configure [terminal] G8272(config)# feature telnet For more information about using the CLI, see the Command Reference guide for your specific switch and firmware version. © Copyright Lenovo 2019 Chapter 5: Initializing the G8272...
  • Page 80: Out-Of-Band Management Interface Configuration

    1. Log onto the switch using the serial console port or management port on the G8272 front panel. 2. Enter the management interface configuration mode:  Lenovo Enterprise Network Operating System (ENOS): G8272> enable G8272# configure [terminal] G8272(config)# interface ip 128 G8272(config-ip-if)# ...
  • Page 81: In-Band Management Interface Configuration

    G8272# configure [terminal] G8272(config)# 3. Configure the in-band management IP address: G8272(config)# interface vlan 1 G8272(config-if)# ip address 10.254.87.6/24 G8272(config-if)# exit G8272(config)# 4. Configure the in-band default gateway: G8272(config)# ip route 0.0.0.0/0 205.21.17.1 © Copyright Lenovo 2019 Chapter 5: Initializing the G8272...
  • Page 82: Updating Firmware

    Updating Firmware If firmware updates are available, you can download them from the Lenovo website. The switch might have features that are not described in the documentation that comes with the switch, and the documentation might be updated occasionally to include information about those features, or technical updates might be available to provide additional information that is not included in the switch documentation.
  • Page 83: The Boot Management Menu

    The Boot Management menu allows you to perform the following actions: To change between firmware images, press M and follow the screen prompts.  ENOS refers to Lenovo Enterprise Network Operating System (8.4 or later) and CNOS refers to Lenovo Cloud Network OS (10.1 or later). ...
  • Page 84: Boot Recovery Mode

    Boot Recovery Mode The Boot Recovery Mode allows you to recover from a failed software or boot image upgrade using TFTP or XModem download. To enter Boot Recovery Mode you must select the Startup in recovery mode option from the Boot Management Menu. Entering Rescue Mode.
  • Page 85: Recover From A Failed Image Upgrade Using Tftp

    9. Enter the IP address of the TFTP server: Server addr: 10. Enter the file path and the filename of the image: Image Filename: After the procedure is complete, the Recovery Mode menu is displayed. © Copyright Lenovo 2019 Chapter 5: Initializing the G8272...
  • Page 86 Following is an example of a successful recovery procedure using TFTP: Entering Rescue Mode. Please select one of the following options: T) Configure networking and tftp download an image X) Use xmodem 1K to serial download an image P) Physical presence (low security mode) F) Filesystem check R) Reboot E) Exit...
  • Page 87: Recovering From A Failed Image Upgrade Using Xmodem Download

    8. Select the image to download. Xmodem initiates the file transfer. When download is complete, you are asked to change the Serial Port speed back to 9,600 bps: Change the baud rate back to 9600 bps, hit the <ENTER> key © Copyright Lenovo 2019 Chapter 5: Initializing the G8272...
  • Page 88 9. Press Enter to start installing the image. The image install begins. After the procedure is complete, the Recovery Mode menu is displayed. Extracting images ... Do *NOT* power cycle the switch. Installing Root Filesystem: Image signature verified. 100% Installing Kernel: Image signature verified.
  • Page 89: Physical Presence

    After the test is completed, the switch is put in low security mode. This mode allows you to install special images on the switch. To revert to normal security mode, you must reboot the switch or enter P again in the Recovery Mode menu. © Copyright Lenovo 2019 Chapter 5: Initializing the G8272...
  • Page 90 G8272 Installation Guide...
  • Page 91: Troubleshooting

    If you have problems accessing the switch or working with the firmware, see the G8272 Application Guide and/or the Command Reference. For information about calling Lenovo for service, see Appendix A, “Getting Help and Technical Assistance“.
  • Page 92: System Led Is Not Lit

    System LED Is Not Lit Symptom: The power supply LED is not lit. Solution: Check the power supply to make sure that there is a proper connection to the power source. Make sure that power is available from the power source. G8272 Installation Guide...
  • Page 93: Port Link Led Is Not Lit

    Solution 2: Check the cables that connect the port to the other device. Make sure that they are connected correctly. Make sure that you are using the correct cable type. © Copyright Lenovo 2019 Chapter 6: Troubleshooting...
  • Page 94: Temperature Sensor Warning

    Make sure that all cooling fans inside the switch are running. A fan module LED (rear panel) flashes if there is a failure of the fan. The following CLI command displays fan status:  Lenovo Enterprise Network Operating System (ENOS): G8272> show sys-info Lenovo Cloud Network Operating System (CNOS): ...
  • Page 95: Switch Does Not Initialize (Boot)

    Symptom: All the switch LEDs stay on, and the command prompt is not displayed on the console. Solution: The operating system might be damaged. Use the console port to perform a serial upgrade of the switch firmware. See the Command Reference. © Copyright Lenovo 2019 Chapter 6: Troubleshooting...
  • Page 96 G8272 Installation Guide...
  • Page 97: Getting Help And Technical Assistance

    Lenovo to assist you. Use this information to obtain additional information about Lenovo and Lenovo products, and determine what to do if you experience a problem with your Lenovo system or optional device. Note: This section includes references to IBM web sites and information about obtaining service.
  • Page 98 You can solve many problems without outside assistance by following the troubleshooting procedures that Lenovo provides in the online help or in the Lenovo product documentation. The Lenovo product documentation also describes the diagnostic tests that you can perform. The documentation for most systems, operating systems, and programs contains troubleshooting procedures and explanations of error messages and error codes.
  • Page 99: Notices

    Web sites. The materials at those Web sites are not part of the materials for this Lenovo product, and use of those Web sites is at your own risk.
  • Page 100 Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems.
  • Page 101: Trademarks

    Trademarks Lenovo, the Lenovo logo, Flex System, System x, NeXtScale System, and X-Architecture are trademarks of Lenovo in the United States, other countries, or both. Intel and Intel Xeon are trademarks of Intel Corporation in the United States, other countries, or both.
  • Page 102: Important Notes

    (TBW). A device that has exceeded this limit might fail to respond to system-generated commands or might be incapable of being written to. Lenovo is not responsible for replacement of a device that has exceeded its maximum guaranteed number of program/erase cycles, as documented in the Official Published Specifications for the device.
  • Page 103: Open Source Information

    Lenovo. This offer is valid to anyone in receipt of this Lenovo Switch. You may send your request in writing to the address below accompanied by a check or money...
  • Page 104: Recycling Information

    Recycling Information Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in recycling their IT products. For information on recycling Lenovo products, go to: https://www.lenovo.com/recycling...
  • Page 105: Particulate Contamination

    If Lenovo determines that the levels of particulates or gases in your environment have caused damage to the device, Lenovo may condition provision of repair or replacement of devices or parts on implementation of appropriate remedial measures to mitigate such environmental contamination.
  • Page 106: Telecommunication Regulatory Statement

    This product may not be certified in your country for connection by any means whatsoever to interfaces of public telecommunications networks. Further certification may be required by law prior to making any such connection. Contact a Lenovo representative or reseller for any questions. G8272 Installation Guide...
  • Page 107: Electronic Emission Notices

    Properly shielded and grounded cables and connectors must be used to meet FCC emission limits. Lenovo is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment.
  • Page 108: European Union - Compliance To The Electromagnetic Compatibility Directive

    Grenzwerte der Klasse A der Norm gemäß Richtlinie. Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden. Lenovo übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung...
  • Page 109: Japan Vcci Class A Statement

    Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen - CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo (Deutschland) GmbH, Meitnerstr. 9, D-70563 Stuttgart. Informationen in Hinsicht EMVG Paragraf 4 Abs. (1) 4: Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55022 Klasse A.
  • Page 110: Korea Communications Commission (Kcc) Statement

    Korea Communications Commission (KCC) Statement This is electromagnetic wave compatibility equipment for business (Type A). Sellers and users need to pay attention to it. This is for any areas other than home. Russia Electromagnetic Interference (EMI) Class A statement People’s Republic of China Class A electronic emission statement Taiwan Class A compliance statement G8272 Installation Guide...
  • Page 111: Taiwan Bsmi Rohs Declaration

    Note 2: “?” indicates that the percentage content of the restricted substance does not exceed the reference per- centage value of presence. 備考 3. 〝-〞係指該項限用物質為排除項目。 Note 3: The “–” indicates that the restricted substance corresponds to the exemption. © Copyright Lenovo 2019 Appendix B: Notices...
  • Page 112 G8272 Installation Guide...
  • Page 113: Technical Specifications

    Appendix C. Technical Specifications The G8272 technical specifications are described in the following sections. © Copyright Lenovo 2019...
  • Page 114: Physical Characteristics

    Physical Characteristics The physical characteristics of the G8272 are listed in the following table. Table 13. Physical characteristics Specification Physical characteristics Dimensions (H x W x D) 4.4 x 43.9 x 48.72 cm (1.73 x 17.3 x 19.18 in) Weight 9.1 kg (20 lb) maximum Airflow Available options for rear to front,...
  • Page 115: Environmental Specifications

    10 to 90% storage Altitude, operating 2,000 m (6,561 ft) Altitude, storage 12,190 m (40,000 ft) Acoustic noise (sound pressure) Less than 72 dB Acoustic noise (sound power) Less than 83 dB © Copyright Lenovo 2019 Appendix C: Technical Specifications...
  • Page 116: Power Specifications

    Power Specifications The power specifications for the G8272 are listed in the following table. Table 15. G8272 AC power specifications Specification Measurement Number of power supplies 2 (1+1 load sharing/redundant) AC-input frequency (universal) 50/60 Hz AC-input voltage (universal) 100–127 VAC 200–240 VAC System power dissipation (typical) 123 W...
  • Page 117: Switching Performance

    Note: The specific features supported on your switch, as well as some capacity and performance characteristics, depend on the specific firmware installed. For more information, see the Application Guide and Command Reference for your specific switch and its installed firmware. © Copyright Lenovo 2019 Appendix C: Technical Specifications...
  • Page 118 G8272 Installation Guide...