AT-8900, AT-9900, AT-9900s Switches Hardware Reference AT-8948 AT-9924T AT-9924SP AT-9924T/4SP AT-9924Ts
Hardware Reference for AT-8900, AT-9900 and AT-9900s Series Switches Document Number C613-03092-00 REV C © 2003-2005 Allied Telesyn Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn Inc. Allied Telesyn Inc. reserves the right to change specifications and other information in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesyn Inc.
Hardware Reference 1 Contents Models Covered by this Document .................................................................... 3 Why You Should Read This Document .............................................................. 3 Hardware Overview .......................................................................................... 4 Dimensions ................................................................................................ 4 Mounting system .........................................
2 AT-8900, AT-9900, AT-9900s Series Switches Management Ports ......................................................................................... RS-232 Terminal Port (ASYN0) .................................................................. Out-of-Band Ethernet Management Port .................................................. Cables ............................................................................................................ RS-232 Terminal and Modem Cables .........................
Hardware Reference 3 Models Covered by this Document This Hardware Reference includes information on these models: ■ AT-8948 ■ AT-9924T/4SP ■ AT-9924T ■ AT-9924SP ■ AT-9924Ts ■ AT-PWR01 (either AC or DC power supply unit) ■ AT-PWR02 (AC power supply unit only) ■ AT-FAN01 (fan-only module) Why You Should Read This Document Use this document to familiarise yourself with the AT-8900, AT-9900, and AT-9900s Series switches and hardware features, including power supply units (PSUs).
4 AT-8900, AT-9900, AT-9900s Series Switches Hardware Overview This section provides details about the physical characteristics of the following: ■ AT-8900 Series Switch • ■ ■ AT-8948 model AT-9900 Series Switch • AT-9924T/4SP model • AT-9924T model • AT-9924SP model AT-9900s Series Switch • AT-9924Ts model The AT-8900, AT-9900, and AT-9900s Series switches have the following common traits: Dimensions ■ Height: 44.5 mm, plus 5.
Hardware Reference 5 AT-8900 Series Switch The AT-8948 switch is the sole model in the AT-8900 Series and meets the exceptionally high performance demands of high-end applications. It delivers wire-speed switching performance in a robust 1U rack mount platform. Environmental conditions Regulatory standards Switching core Processing core Optional IPv6 accelerator card Software Release 3.0.
6 AT-8900, AT-9900, AT-9900s Series Switches AT-8948 model Key features are: ■ Autonegotiating multi-layer gigabit switch ■ 48 10BASE-T/100Base-TX ports (RJ-45 connectors), auto MDI/MDI-X, full or half duplex ■ 4-port 1000BASE-X SFP uplink sockets, full duplex ■ Hot-swappable, load sharing PSUs ■ Optional AT-ACC01 network processor accelerator card AT-8948 front panel 1 ASYN0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
Hardware Reference 7 AT-9900 Series Switch AT-9900 Series switches are advanced gigabit Ethernet multi-layer switches, perfect for the high-density rack environment where space is at a premium.
8 AT-8900, AT-9900, AT-9900s Series Switches AT-9924T/4SP model Key features are: ■ Autonegotiating, multi-layer gigabit switch ■ 24 10BASE-T/100BASE-TX/1000BASE-T ports (RJ-45 connectors) ■ 4 Small Form Factor Pluggable (SFP) ports ■ Hot-swappable, load sharing PSUs ■ Optional AT-ACC01 network processor accelerator card AT-9924T/4SP front panel There are 24 ports operational at one time. The RJ-45 ports 1 to 4 use the same physical interface as the SFP ports 1 to 4.
Hardware Reference 9 AT-9900s Series Switch The AT-9900s Series switch is a gigabit link aggregation switch that operates with other switches that have 10 Mb/100Mb/1Gb/10Gb Ethernet ports. This switch can act as a gigabit server backbone or pass aggregated traffic over its gigabit ports. The switch can also aggregate gigabit desktop user connections and pass traffic to other 10 Gigabit Ethernet equipment.
10 AT-8900, AT-9900, AT-9900s Series Switches Switch LEDs The following LEDs report operations and faults and on the AT-8900, AT-9900, and AT-9900s switches: ■ SFP port LEDs ■ RJ-45 port LEDs ■ Ethernet port LEDs ■ System LEDs SFP port LEDs LED State Description L/A (Link Activity) Green On AT-8948 only, a 1000 Mbps link has been established and is operating in full duplex mode. Green flashing On AT-8948 only, a full duplex activity is occurring at 1000 Mbps.
Hardware Reference 11 Ethernet port LEDs LED State Description L/A (Link Activity) Green An XFP transceiver is installed and a 10 Gb link has been established. Green flashing An XFP transceiver is installed and link activity is occurring. Amber A 10/100 Mbps link has been established. Amber flashing 10/100 Mbps activity is occurring. Green The port is operating in full duplex mode. Amber The port is operating in half duplex mode. Amber flashing Collisions are occurring.
12 AT-8900, AT-9900, AT-9900s Series Switches LED State Description (cont) Fault Red The switch or management software is malfunctioning. This LED lights and then turns off after hardware initialises. 1 Flash One or more heatsink fans has failed or is operating below the recommended speed. 6 Flashes The switch’s temperature has exceeded the recommended threshold. After flashing six times, the LED stops briefly, then repeats the sequence.
Hardware Reference 13 Using AT-TFTP Server This section explains how to access and use the AT-TFTP Server. You can transfer configuration files as well as download software upgrades with AT-TFTP Server. 1. If AT-TFTP Server has not been installed, install it from the Documentation and Tools CD-ROM. Select AT-TFTP Server from the Start > Programs > Allied Telesyn > AT-TFTP Server menu. 2.
14 AT-8900, AT-9900, AT-9900s Series Switches Using Windows Terminal and HyperTerminal You can use a PC running terminal emulation software as the manager console, instead of a terminal. There are many terminal emulation applications available for PCs, but the most readily available are the Terminal and HyperTerminal applications included in Microsoft Windows 98, 2000, and XP Professional. In standard Windows installations, HyperTerminal is available from the Communications submenu.
Hardware Reference Software Release 3.0.2 C613-03092-00 REV C 15 3. In the “Connect using” field on the Connect To dialog box, select the COM port on the PC used to connect to the switch. and click the OK button. 4. In the COMn Properties dialog box, set port parameters as follows, and click the OK button.
16 AT-8900, AT-9900, AT-9900s Series Switches 5. From the main HyperTerminal window, select Properties from the File menu. Click the Settings tab, and set the Properties dialog box as follows. 6. Click ASCII Setup to display the ASCII Setup dialog box, and ensure the following options are not selected: • Echo typed characters locally • Append line feeds to incoming line ends Set other parameters as necessary and click the OK buttons on both dialog boxes to close them. 7.
Hardware Reference 17 How the Switch Starts Up When the switch starts up following a power cycle or an operator-initiated reboot (using the reset button or restart command), it performs a series of tests and sends messages to the terminal or PC connected to the ASYN0 port. After the switch successfully starts, a prompt is displayed for you to log in. Refer to the Installation and Safety Guide for basic login instructions or to the Getting Started chapter in the Software Reference.
18 AT-8900, AT-9900, AT-9900s Series Switches Regular output The following messages are an example of output from AT-8900 and AT-9900 switches. INFO: INFO: PASS: INFO: PASS: INFO: INFO: Self tests beginning. RAM test beginning. RAM test, 131072k bytes found. BBR tests beginning. BBR test, 512k bytes found. Self tests complete Downloading switch software. Force EPROM download (Y) ? INFO: Initial download succeeded INFO: Executing configuration script
Hardware Reference 19 Message Description (cont) FAIL: BBR test. Error address = location BBR size/location test failed at the given location. The test at this location failed, indicating the end of memory, but a valid location was discovered in the 255 long words following this location. The BBR system must be replaced. Contact your authorised distributor or reseller. FAIL: BBR test, only 16k bytes found The BBR size/location test completed, but only the displayed amount of memory was found.
20 AT-8900, AT-9900, AT-9900s Series Switches AT-9900s Switches This section explains how AT-9900s switches start initially, including error messages. The following types of software play key roles during startup. Process flow Overrides Software Description Base Product software that is typically the “preferred” base package installed. It constitutes a feature set—similar to a "release”—and runs the switch. A software licence must be enabled for specific base packages.
Hardware Reference Regular output 21 Bootloader and product software (AlliedWare) display a series of messages similar to those in the following figure during routine startup for the AT-9900s switch. -----------------------------------------------------------Bootloader v1-00, built Feb 10 2005 -----------------------------------------------------------Initial RAM test ............................... passed Available RAM ..................................
22 AT-8900, AT-9900, AT-9900s Series Switches Bootloader messages The following table explains messages that bootloader software displays at initial startup for the AT-9900s switch. Message Description Bootloader , built Banner that identifies the bootloader software. Initial RAM test...passed or Initial RAM test...failed Whether initial RAM tests are successful. If tests detect a problem with DRAM, the switch cannot be used. Contact your authorised distributor or reseller.
Hardware Reference AlliedWare messages Software Release 3.0.2 C613-03092-00 REV C 23 Message Description (cont) ERROR: Fallback area is corrupt - launching the bootloader CLI The switch is shifting to bootloader software because the fallback area in flash is unformatted or corrupt. It displays a bootloader prompt. Contact your authorised distributor or reseller before proceeding.
24 AT-8900, AT-9900, AT-9900s Series Switches Message Description (cont) Installing product_apps.img (8925892 bytes)...done or Installing product_apps.img (8925892 bytes)...failed Whether the product application image of the given size is installed in RAM and able to execute. This file is part of the installed package. IGMP packet trapping has been activated for IGMP snooping IGMP packet trapping is enabled to allow IGMP snooping to function.
Hardware Reference 25 Message Description (cont) ERROR: Failed to extract product_apps.img from package to RAM The product application image could not be extracted from the package file because the package file is corrupt or there is not enough RAM. Manually restart the switch with fallback software (for details, see “Overrides” on page 20), and install another base package. If this error occurs while rebooting from fallback, contact your authorised distributor or reseller.
26 AT-8900, AT-9900, AT-9900s Series Switches SFP Ports SFP transceivers are compact, hot-swappable, and high speed. Certain fibre and copper SFP transceivers are supported so that you can interchange port types to meet changing network requirements. AT-8900 and AT-9900 switches have 1000BASE-X Small Form Factor Pluggable (SFP) uplink sockets conveniently located on the front panels.
Hardware Reference To insert or remove an SFP transceiver 27 The SFP transceiver must be inserted the correct way in the socket, which varies depending on whether the switch has a single or dual row of sockets. For example, the AT-8948 has single-row sockets but the AT-9900 has a dual row. See the example of dual-row sockets for a copper SFP transceiver in the figure below. Notice the varying position of the release lever. Warning Do not look into SFP cables or transceivers.
28 AT-8900, AT-9900, AT-9900s Series Switches Management Ports The following management ports let you configure, monitor, and upgrade the switch: ■ RS-232 Terminal Port (ASYN0) ■ Out-of-Band Ethernet Management Port (AT-9900s switch only) RS-232 Terminal Port (ASYN0) The RS-232 ASYN0 port is standard for the AT-8900, AT-9900, and AT-9900s switches, and connects them to a management device for initial configuration.
Hardware Reference 29 Cables This section describes the following: ■ RS-232 Terminal and Modem Cables ■ Cables for RJ-45 Ethernet LAN Interfaces ■ Cable Guidelines ■ Troubleshooting Cables RS-232 Terminal and Modem Cables The terminal and modem cables described in this section are: ■ RS-232 RJ-45 to DB9 female terminal cable ■ DCE RS-232 terminal port RJ-45 to DB9 male modem cable The following figures show pin wiring diagrams to connect a standard VT100 compatible terminal or modem to ASYN0.
30 AT-8900, AT-9900, AT-9900s Series Switches RJ-45 to DB9 male modem cable RJ-45 (to switch) DB9 Male (to modem) 7 6 3 2 4 5 1 8 1 2 3 4 5 6 not connected 7 8 9 not connected Note Cable version 1.0 RJ45DB9M_x900 For more information on pin assignments for the RS-232 port, see “RS-232 Terminal Port (ASYN0)” on page 28. Cables for RJ-45 Ethernet LAN Interfaces A twisted pair cable with four pairs and RJ-45 connectors must be used for 10BASE-T/100BASE-TX/1000BASE-T connections.
Hardware Reference 31 1000BASE straight-through cable For 1000BASE network connections, all four pairs are used and the cable is wired in a straight-through configuration. You can use this cable with the software test facility to test 1000BASE network ports. The following table lists pin assignments for a 10/100/1000BASE-T RJ-45 four pair straight-through cable.
32 AT-8900, AT-9900, AT-9900s Series Switches Troubleshooting Cables Cable test The virtual cable test facility diagnoses cable faults and the approximate distance to them on Gigabit Ethernet RJ-45 ports for the following switches: ■ AT-9924T ■ AT-9924T/4SP ■ AT-9924Ts See “Test Facility” on page 40 for more information or the Test Facility chapter in the Software Reference. Not all copper SFPs support this feature; however, those listed in “Approved SFP transceivers” on page 26 do support it.
Hardware Reference 33 Power Supply Units (PSUs) Two power supply bays are at the rear of the AT-8900, AT-9900, and AT-9900s chassis. Each switch is supplied with a single power supply unit (PSU), either AC or DC. Depending on the model, the switch has either a fan-only module (FOM) or a blanking panel: ■ The AT-8948, AT-9924T/4SP, and AT-9924Ts switches have a PSU and a FOM installed. ■ The AT-9924T and AT-9924SP switches have a PSU and a blanking panel installed.
34 AT-8900, AT-9900, AT-9900s Series Switches Approved PSUs and FOM Product numbers for the power supply unit (PSU) and the fan-only module (FOM) that can be fitted in the AT-8900 and AT-9900 switches are: ■ AT-PWR01(either AC or DC power supply unit) ■ AT-PWR02 (AC power supply unit only) ■ AT-FAN01 (fan-only module) For the AT-9900s Series switch only, you can install the AT-PWR01 and AT-FAN01 models.
Hardware Reference 35 following figure is an example of output from the show system command for the AT-9924T/4SP switch.
36 AT-8900, AT-9900, AT-9900s Series Switches If there is no entry for the accelerator card, then the switch’s boot process has not detected the card. The most likely cause is that the card is not correctly plugged into the slot on the switch’s base board. Displaying information about the card To display information about the status and memory of a network processor accelerator card on AT-8900 and AT-9924T/4SP switches, use the show switch accelerator command.
Hardware Reference Inserting and removing a CFlash card 37 You can insert a card into the CompactFlash slot at any time; it takes about two seconds to initialise. The following CLI message confirms that a card has been inserted: Info (1106257): Compact flash card inserted. The following message confirms that the card is ready to use: Info (1106268): Compact flash card initialisation successful.
38 AT-8900, AT-9900, AT-9900s Series Switches The following is example output from the show cflash test command when a test is running. Test Progress Starting cluster Ending cluster Current cluster Passed clusters number Passed sectors number = 700 = 1700 = 1185 = 485 = 1940 Failed clusters number = 0 Failed sectors number = 0 Used Clusters encountered = 0 Duration................ 4417 ms Error messages are displayed when a file write fails.
Hardware Reference 39 The size of DRAM is in the memory section of the output. If the DRAM size is less than the size of DIMM that has been installed, then the switch has not detected the DIMM. The most likely cause is that the DIMM connector is not correctly plugged into the slot. Record the switch’s serial number and revision details for later reference. If you have questions or problems with the DIMM at any time, contact your authorised distributor or reseller and supply these serial numbers.
40 AT-8900, AT-9900, AT-9900s Series Switches XFP ports RJ-45 ports The following XFP modules are approved for use with the AT-A60 10Gigabit Ethernet expansion module for the AT-9900s. Product No.
Hardware Reference 41 Diagnostics Software for AT-8900, AT-9900, and AT-9900s switches includes a set of diagnostic programs that perform basic checks of all system components. These diagnostics do not run with normal operating code and require that the system be totally dedicated to their use. The switch does not perform switching operations when diagnostics are running. Caution Diagnostics are designed to be run by service personnel only. This section is not intended as a guide to diagnostics software.
42 AT-8900, AT-9900, AT-9900s Series Switches One of the following menus is displayed depending on the switch model. When you see the menu, you know that the terminal is connected. Menu for AT-8900 and AT-9900 switches * * * Diagnostic Mode * * * version: Nov 10 2004 11:08:34 Main Menu: 0. Restart 1. Full RAM test 2. ROM checksum test 5. Battery backed RAM test 7. Display PCI devices (not shown for AT-8948 models) 8.
Hardware Reference 43 Troubleshooting This section provides information on how to troubleshoot AT-8900, AT-9900, and AT-9900s switches to resolve the following basic problems: What to check first L/A LED on a port is off ■ L/A LED on a port is off ■ Power LED is off ■ Fault LED is on ■ Check power cord connections. ■ Check that the power supply voltage is stable. ■ Check that the correct data cables are used and that their connections are secure.
44 AT-8900, AT-9900, AT-9900s Series Switches Power LED is off If the power LED is off, it may indicate the following: ■ a loose power cord ■ a power supply failure ■ a FOM is installed in that bay Follow these suggestions to resolve the problem: Fault LED is on 1. Check that the power cord connections are secure. 2. Check that all switches and circuit protection devices are in the “on” position. 3.
Hardware Reference 45 For More Information Document sets The Documentation and Tools CD-ROM bundled with each switch contains the complete document set for AT-8900, AT-9900, and AT-9900s Series switches and their power supply units, as well as tools for switch management.
