AT-8700XL SERIES SWITCH USER GUIDE Software Release 2.6.
AT-8700XL Series Switch User Guide for Software Release 2.6.1 Document Number C613-02030-00 REV B. Copyright © 2003 Allied Telesyn International Corp. 19800 North Creek Parkway, Suite 200, Bothell, WA 98011, USA. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn. Allied Telesyn International Corp. reserves the right to make changes in specifications and other information contained in this document without prior written notice.
Contents CHAPTER 1 Introduction Why Read this User Guide? ............................................................................... Where To Find More Information ...................................................................... Technical support .............................................................................................. Features of the AT-8700XL Series Switch ........................................................... Warning about FLASH memory ..............................
AT-8700XL Series Switch User Guide SNMP and MIBs .............................................................................................. 61 For More About Operations and Facilities ........................................................ 62 CHAPTER 5 Switching Switch Ports .................................................................................................... Virtual Local Area Networks (VLANs) ...............................................................
Chapter 1 Introduction Welcome to the AT-8700XL Series Advanced Fast Ethernet Switch, combining wire speed Layer 2 and Layer 3 switching with Quality of Service (QoS) features such as traffic classifiers and bandwidth limiting. This guide introduces the AT-8700XL Series Switch and will guide you through the most common uses and applications of your new switch. Getting started will not take long—many applications are set up in just a few minutes.
AT-8700XL Series Switch User Guide ■ Chapter 3, Getting Started with the Graphical User Interface (GUI) describes how to access and use the graphical user interface. ■ Chapter 4, Operating the switch introduces general operation, management and support features, including loading and installing support files and new releases. ■ Chapter 5, Switching describes how to configure Layer 2 and IP switching features, including switch ports and VLANs.
Introduction 7 The CD-ROM also includes: • AT-TFTP Server for Windows, for downloading software releases, scripts and other files to or from an AT-8700XL switch. • Adobe Acrobat Reader for Windows for viewing and printing the online documentation in PDF format. Get instant access to information with full-text searching of PDF documents by keyword or phrase. • Microsoft Internet Explorer. • A demonstration version of F-Secure’s Secure Shell client for Windows.
AT-8700XL Series Switch User Guide ■ Spanning Tree Protocol and Rapid Spanning Tree Protocol (“Spanning Tree Protocol (STP)” on page 68). ■ Classifiers to sort traffic for QoS and hardware filtering ■ Quality of Service • DSCP configuration enabling management of DiffServ domains • Priority queuing • Bandwidth limiting ■ Port trunking to spread traffic over several links (“Port Trunking” on page 64). ■ Port mirroring (“Port Mirroring” on page 64).
Introduction 9 ■ OSPF and IP RIP routing protocols. ■ ARP, Proxy ARP and Inverse ARP address resolution protocols. ■ Sophisticated packet filtering. ■ Terminal serving using Telnet, with local host nicknames. ■ Integration with a Public Key Infrastructure (PKI). ■ Virtual Router Redundancy Protocol (VRRP). ■ Software Secure Sockets Layer (SSL). ■ 802.1x port authentication.
Chapter 2 Getting Started with the Command Line Interface (CLI) This Chapter This chapter describes how to access the switch’s CLI, and provides basic information about configuring the switch, including how to: ■ Physically connect a terminal or PC to the switch (see “Connecting a Terminal or PC” on page 12 and the Quick Install Guide). ■ Set the Terminal Communication parameters to match the switch’s settings (see “Terminal Communication Parameters” on page 12).
AT-8700XL Series Switch User Guide Connecting a Terminal or PC The first thing to do after physically installing the switch is to start a terminal or terminal emulation session to access the switch. Then you can use the command line interface (CLI) to configure the switch. If you wish to configure the switch using the Graphical User Interface, you must first access the CLI and assign an IP address to at least one interface.
Getting Started with the Command Line Interface (CLI) 13 If a modem is connected, configure the switch to make and/or accept calls via the modem. To set the CDCONTROL parameter to “CONNECT” and the FLOW parameter to “HARDWARE”, enter the command: SET ASYN CDCONTROL=CONNECT FLOW=HARDWARE If the terminal or modem is used with communications settings other than the default settings, then configure the asynchronous port to match the terminal or modem settings using the SET ASYN command.
AT-8700XL Series Switch User Guide If IP addresses on your LAN are assigned dynamically by DHCP, you can set the switch to request an IP address from the DHCP server, using the commands: ADD IP INTERFACE=vlan1 IPADDRESS=DHCP ENABLE IP REMOTEASSIGN You do not need to set the MASK parameter because the subnet mask received from the DHCP server is used.
Getting Started with the Command Line Interface (CLI) 15 If IP addresses on your LAN are assigned dynamically by DHCP, you can set the switch to request an IP address from the DHCP server, using the commands (for Ethernet port 0, for example): ADD IP INTERFACE=eth0 IPADDRESS=DHCP ENABLE IP REMOTEASSIGN You do not need to set the MASK parameter because the subnet mask received from the DHCP server is used.
Changing a Password You should change this password to prevent unauthorised access to the switch. Enter the command: SET PASSWORD The switch prompts you for the current password, for the new password, and for confirmation of the new password. The password can contain any printable characters, and must be at least a minimum length, by default six characters. (To change the default minimum length, see the SET USER command in the Operations chapter, AT-8700XL Series Software Reference.
Getting Started with the Command Line Interface (CLI) 17 Using the Commands You control the switch with commands described in this document and in the AT-8700XL Series Software Reference. While the keywords in commands are not case sensitive, the values entered for some parameters are (especially passwords). The switch supports command line editing and recall. Command line editing functions and keystrokes are shown in Table 2 on page 17. Table 2: Command line editing functions and keystrokes .
AT-8700XL Series Switch User Guide Getting Command Line Help Online help is available for all switch commands. A multilingual, languageindependent online help facility provides help information via the command: HELP [topic] If a topic is not specified, a list of available topics is displayed. The HELP command displays information from the system help file stored in FLASH memory. The help file uses a simple mark-up language to identify topics, access level (USER or MANAGER) and help text.
Getting Started with the Command Line Interface (CLI) 19 In Australia only: to use the Micro service, SET SYSTEM LOCATION=australia; to use the OnRamp service, SET SYSTEM LOCATION=europe. System name, location and contact parameters can help a remote network administrator identify the switch. By convention the system name is the full domain name. Set the name of the switch, for example: SET SYSTEM NAME=nd1.co.
Chapter 3 Getting Started with the Graphical User Interface (GUI) This Chapter This chapter describes how to access the switch’s HTTP-based Graphical User Interface (GUI), and provides basic information about using the GUI, including: ■ What is the GUI? • ■ ■ an introduction to the Graphical User Interface Accessing the switch via the GUI: • browser and PC setup, including interaction with HTTP proxy servers • establishing a connection to your switch, including an example of configuring SSL for se
AT-8700XL Series Switch User Guide What is the GUI? The GUI (Graphical User Interface) is a web-based device management tool, designed to make it easier to configure and monitor the switch. The GUI provides an alternative to the CLI (Command Line Interface). Its purpose is to make complicated tasks simpler and regularly performed tasks quicker. The GUI relies on an HTTP server that runs on the switch, and a web browser on the host PC.
Getting Started with the Graphical User Interface (GUI) 23 To enable JavaScript in Netscape 6.2.x: 1. From the Edit menu, select Preference 2. Select the Advanced menu option. 3. Ensure that the “Enable JavaScript for Navigator” checkbox is checked. The minimum screen resolution on the PC is 800x600. HTTP Proxy Servers An HTTP proxy server provides a security barrier between a private network’s PCs and the Internet.
Establishing a Connection to the Switch Before you start, consider how the switch fits into your network. If you are installing a new switch, consider whether you want to configure it before deploying it into the LAN, or want to configure it in situ. If you want to access a switch that has already been configured, consider the relative positions of the PC and the switch. The flow chart below summarises this process, and the procedures that follow take you through each possibility in detail.
Getting Started with the Graphical User Interface (GUI) 25 Option 1: Configuring the Switch before Installation Use this procedure if: ■ You want to configure the switch before installing it in your LAN. ■ You will be installing the switch at a remote office or a customer site and want to configure it first. ■ You want a dedicated management PC permanently connected to the switch. 1.
AT-8700XL Series Switch User Guide 9. At the login prompt, enter the user name and password The default username is manager: User Name: manager Password: friend The System Status page is displayed (Figure 6 on page 31). Select options from the sidebar menu to configure and manage the switch. Option 2: Installing the Switch into the LAN Use this procedure if: ■ You want to install the switch into the LAN before you configure it. 1.
Getting Started with the Graphical User Interface (GUI) 27 You can browse to the switch through any VLAN, as long as you give that VLAN an IP address (see below). These instructions assume you will use vlan1. The switch ports all belong to vlan1 by default. 3. Access the switch’s command line interface Access the CLI from the PC, as described in “Connecting a Terminal or PC” on page 12. 4. Enable IP ENABLE IP 5.
For secure access, point your web browser to https://ip-address where ip-address is the interface’s IP address. 11. At the login prompt, enter the user name and password The default username is manager: User Name: manager Password: friend The System Status page is displayed (see Figure 6 on page 31). Select options from the sidebar menu to configure and manage the switch.
Getting Started with the Graphical User Interface (GUI) 5. 29 At the login prompt, enter the user name and password The default username is manager: User Name: manager Password: friend The System Status page is displayed (see Figure 6 on page 31). Select options from the sidebar menu to configure and manage the switch. Secure Access You can optionally browse to the switch using Secure Sockets Layer (SSL).
AT-8700XL Series Switch User Guide To set the switch’s distinguished name to "cn=switch1,o=my_company,c=us", use the command: SET SYSTEM DISTINGUISHEDNAME="cn=switch1, o=my_company,c=us" 6. Set the UTC offset. To set the Universal Coordinated Time to inform the switch that the difference between local time and GMT is 7 hours, use the command: SET LOG UTCOFFSET=7 7. Create a self-signed certificate for the switch.
Getting Started with the Graphical User Interface (GUI) System Status The GUI opens to display the System Status page. Figure 6 points out key information contained on the page. Figure 6: The System Status page Model name Software release Help, Save and Exit Sidebar menu Port status System status Software Release 2.6.
AT-8700XL Series Switch User Guide Using the GUI: Navigation and Features The GUI consists of a large number of pages, which you navigate between using the menu on the left of the browser window. This section describes how to use the GUI, and gives an overview of its functionality.
Getting Started with the Graphical User Interface (GUI) 33 To modify an existing item, select it by clicking on the option button at the beginning of its entry in the selection table. Then click the Modify button. This opens the popup “modify” page, which lets you expand or change the configuration (for example, change the Hello interval for a PIM interface; see Figure 9 on page 34).
AT-8700XL Series Switch User Guide Figure 9: An example of a popup “modify” page Non-editable field Editable Fields GUI pages allow you to enter values or select options through a range of field types. These include: • text fields, to enter character strings or numbers, especially for fields where there are few limits on the entries (such as names). See the online help for valid characters and field length • select lists, to select one option from a small number of possibilities.
Getting Started with the Graphical User Interface (GUI) 35 Ports Graphic Pages on which you can select switch ports use a Ports graphic - a visual representation of the switch ports.To toggle through the selection options, click on the icon representing the port you want to select or deselect. Apply Button An Apply button applies the configuration settings on the page or the section of the page. The new settings will take effect immediately, but are not automatically saved.
AT-8700XL Series Switch User Guide The Monitoring Menu When you browse to the GUI, the sidebar menu opens to display the monitoring menu, opened at the System > Status.
Getting Started with the Graphical User Interface (GUI) 37 Context Sensitive GUI Help Help button The GUI’s context-sensitive help system is displayed in a pop-up window which covers the title of the GUI page. You can move the banner to any part of your screen and/or resize it. To display the help, click on the Help button above the sidebar menu or on the page for which you require assistance.
AT-8700XL Series Switch User Guide Upgrading the GUI You can download the latest GUI resource file from the support site at http://www.alliedtelesyn.co.nz/support/at8700xl. Before you start, ensure that the switch is running the most recent release and patch files. The GUI is not part of the firmware release file, but the most recent resource file will generally only be compatible with the most recent software release.
Getting Started with the Graphical User Interface (GUI) 39 When the switch has loaded the file into its RAM, it displays the message “File transfer successfully completed”. It then writes the file to FLASH memory, which takes approximately 30 seconds after the message. Once the file has been copied to FLASH, you can enter commands that refer to it. 3.
AT-8700XL Series Switch User Guide Deleting Temporary Files Browsers store local copies of web pages as temporary files. If you upgrade to a new GUI resource file, or if you encounter problems in browsing to the GUI, you may need to delete these files (clear the cache). To clear the cache in Internet Explorer: 1. From the Tools menu, select Internet Options. 2. On the General tab, click the Delete Files button. 3. The Delete Files dialog box opens. Click the OK button.
Getting Started with the Graphical User Interface (GUI) 41 Problem The GUI is behaving inconsistently, or you cannot access some pages. Solution ■ Delete your browser’s temporary files (see “Deleting Temporary Files” on page 40) and try again. ■ Check that you are trying to access the GUI from a supported operating system and browser combination. See “Browser and PC Setup” on page 22 for more information. ■ Check that JavaScript is enabled.
AT-8700XL Series Switch User Guide IP Addresses and DHCP Problem The switch is enabled as a DHCP server, but cannot assign an IP address to a host. Solution ■ Reboot the host machine. ■ Check the host’s TCP/IP settings, to make sure that the host is set to obtain its IP address dynamically: In Windows 95/98, click Settings > Control Panel > Network. Select TCP/ IP and click Properties. Click Obtain an IP address automatically.
Getting Started with the Graphical User Interface (GUI) 43 Loading Software Problem You have attempted to load a new release file onto the switch, but the load has failed and you cannot access the switch through the GUI. Solution 1. Access the switch’s CLI (see “Connecting a Terminal or PC” on page 12). If the switch has been switched off or has rebooted since you attempted to load the release file, it will boot up with the default installation. This contains the commands you require to load a file.
Chapter 4 Operating the switch This Chapter This chapter introduces basic operations on the switch, including: ■ “User Accounts and Privileges” on page 45 ■ “Normal Mode and Security Mode” on page 47 ■ “Remote Management” on page 49 ■ “Storing Files in FLASH Memory” on page 49 ■ “Using Scripts” on page 50 ■ “Loading and Uploading Files” on page 52 ■ “Upgrading Switch Software” on page 56 ■ “Using the Built-in Editor” on page 60 ■ “SNMP and MIBs” on page 61 User Accounts and Privileges Th
AT-8700XL Series Switch User Guide In normal mode, a user with manager privilege can create and delete accounts for users with any of these privilege levels. Users and passwords are managed by the User Authentication Facility. Users and passwords are authenticated using an internal database called the User Authentication Database, or by interrogation of external RADIUS (Remote Authentication Dial In User Service) or TACACS (Terminal Access Controller Access System) servers.
Operating the switch 47 See the Operations chapter in the AT-8700XL Series Software Reference for: ■ More information about managing and using accounts with user, manager and security officer privileges ■ A full list of commands that require security officer privilege when the switch is in secure mode ■ Information about enabling a remote security officer. Normal Mode and Security Mode The switch operates in one of two modes, either normal mode or security mode.
AT-8700XL Series Switch User Guide mode are listed in the Operation chapter in the AT-8700XL Series Software Reference. Table 5: Commands requiring SECURITY OFFICER privilege when the switch is operating in security mode .
Operating the switch 49 Remote Management You can manage remote switches as easily as you manage the local switch a terminal is connected to. From a terminal connected to any port (with either USER or MANAGER privilege), enter the command: TELNET ipadd to Telnet to the remote switch, specifying the remote switch’s IP address. For information about how to set routes and on how you assign an IP address to your switch, see “Setting Routes” on page 15 and “Assigning an IP Address” on page 14.
AT-8700XL Series Switch User Guide Figure 10: Example output from the SHOW FILE command. Filename Device Size Created Locks ---------------------------------------------------------------------------28-72.pat flash 111764 05-May-1997 12:41:42 0 28-74ang.rel flash 2013756 09-May-1997 15:58:55 0 28f72-06.pat flash 123268 18-Apr-1997 15:58:16 0 release.lic flash 32 08-May-1997 16:43:49 0 test.cfg flash 1698 09-May-1997 10:39:42 0 sixteenalongfile.
Operating the switch 51 Saving the Switch’s Configuration To view the switch’s current dynamic configuration, enter the command: SHOW CONFIGURATION DYNAMIC To save any changes made to the dynamic configuration after the switch last restarted (booted) across a restart or power cycle, and save the modified configuration as a script file, enter the command: CREATE CONFIG=filename.scp To set the switch to execute this script file when it restarts, enter the command: SET CONFIG=filename.
AT-8700XL Series Switch User Guide Loading and Uploading Files When you want to upgrade your switch to a new software patch or release, or use a new configuration file, load files onto the switch using the switch’s LOADER module. You can also use the LOADER module to upload files, such as configuration files or log files, from the switch onto a host on the network. File Naming Conventions The file subsystem provides a flat file system—directories are not supported.
Operating the switch 53 Table 6: File extensions and file types (Continued). Extension File type/function SPA Spam Mail Source files, listing email addresses, identified as spam mail sources, to be blocked by the firewall SMTP proxy, if it is active. SPL VPN client. TXT Generic text file. VPF Future VPN client. LFN Extension used for the long file name translation table You may see files on your switch with file name extensions not listed in Table 6 on page 52.
AT-8700XL Series Switch User Guide Setting LOADER Defaults You are likely to repeat the process of downloading files onto the switch using a similar method each time. You can set defaults for some or all of the LOADER parameters. You can then use or override some or all of these defaults for each particular load.
Operating the switch 55 Uploading Files From the Switch The LOADER can upload files from the switch to a network host, using TFTP or ZMODEM. Upload files using one of the commands: UPLOAD [METHOD=TFTP] [FILE=filename] [SERVER={hostname|ipadd}] UPLOAD [METHOD=ZMODEM] [FILE=filename] [ASYN=port] The UPLOAD command uses defaults set with the SET LOADER command, for parameters not specified with the upload command.
AT-8700XL Series Switch User Guide Upgrading Switch Software When you first start the switch, it automatically loads the software release from FLASH memory into RAM, where the CPU uses it to run all the switch’s software features. The switch may also load a patch file to improve the main release. The software release and any patch files are current when the switch is produced at the factory.
Operating the switch 57 To change the install information in the switch, enter the command: SET INSTALL={TEMPORARY|PREFERRED|DEFAULT} [RELEASE={release-name|EPROM}] [PATCH=patch-name] For security reasons the SET INSTALL command is only accepted if the user has SECURITY OFFICER privilege. When you set a patch file as part of a temporary install or permanent install, you must also set the corresponding release file in the same command, if it has not already been set as part of that install.
AT-8700XL Series Switch User Guide Wait for the release to load. This can take several minutes, even if you are loading the file over a high speed link. To see the progress of the load, enter the command: SHOW LOAD To check that the files are successfully loaded, enter the command: SHOW FILE 3. Enter licence information for the release. Enter the licence password for the software release. ENABLE RELEASE=87-261.rez PASSWORD=ce645398fbe NUMBER=2.6.
Operating the switch 59 Example: Upgrade to a new patch file Use this procedure to upgrade the software release currently running on the switch with a new patch. This example assumes that the Software Release 2.6.1 is set as the preferred release. The patch name is this example is 87261-01.paz. To upgrade to a new patch file: 1. Load the new patch file onto the switch. Load the new file onto your switch. See “Loading and Uploading Files” on page 52. LOAD FILE=87261-01.
AT-8700XL Series Switch User Guide Using the Built-in Editor The AT-8700XL Series Switch has a built-in full-screen text editor for editing script files stored on the switch file subsystem. Using the text editor you can run script files manually, or set script files to run automatically at switch restart, or on trigger events. Figure 11 on page 60 shows a example screen shot of the text editor.
Operating the switch 61 SNMP and MIBs You can remotely monitor some features of the switch using Simple Network Management Protocol (SNMP). For information about the MIBs supported by the switch, see Appendix C: SNMP MIBs in the AT-8700XL Series Software Reference. The SNMP agent is disabled by default.
AT-8700XL Series Switch User Guide For More About Operations and Facilities For more detail about operating the switch, and for full command syntax definitions, see the Operation chapter in the AT-8700XL Series Software Reference, including: ■ How to use the User Authentication Facility, RADIUS, TACACs or TACACS+ for authenticating users who log on to the switch, and ensuring that only authorised login accounts are used.
Chapter 5 Switching This section outlines the Layer 2 and IP switching features on the switch, and how to configure some of them. For more detail, refer to the Switching and Internet Protocol (IP) chapters in the AT-8700XL Series Switch Software Reference. Switch Ports Each switch port is uniquely identified by a port number. The switch supports a number of features at the physical level that allow it to be connected in a variety of physical networks.
AT-8700XL Series Switch User Guide Resetting ports at the hardware level discards all frames queued for reception or transmission on the port, and restarts autonegotiation of port speed and duplex mode.
Switching 65 addresses. One of the following options can be specified for the action taken when an unknown MAC address is detected on a locked port: ■ Discard the packet and take no further action, ■ Discard the packet and notify management with an SNMP trap, ■ Discard the packet, notify management with an SNMP trap and disable the port. Virtual Local Area Networks (VLANs) A Virtual LAN (VLAN) is a logical, software-defined subnetwork.
AT-8700XL Series Switch User Guide Creating VLANs To briefly summarise the process of creating a VLAN: 1. Create the VLAN. 2. Add tagged ports to the VLAN, if required. 3. Add untagged ports to the VLAN, if required. To create a VLAN, use the command: CREATE VLAN=vlan-name VID=2..255 Every port must belong to a VLAN, unless it is the mirror port. By default, all ports belong to the default VLAN as untagged ports. To add tagged ports to a VLAN, use the command: ADD VLAN={vlan-name|1..
Switching 67 can be enabled for a specified time, disabled, and displayed using the commands: ENABLE VLAN={vlan-name|1..255|ALL} DEBUG={PKT|ALL} [OUTPUT=CONSOLE] [TIMEOUT={1..4000000000|NONE}] DISABLE VLAN={vlan-name|1..
AT-8700XL Series Switch User Guide Generic VLAN Registration Protocol (GVRP) The GARP application GVRP allows switches in a network to dynamically share VLAN membership information, to reduce the need for statically configuring all VLAN membership changes on all switches in a network. See the Generic Attribute Registration Protocol (GARP) chapter in the AT-8700XL Series Switch Software Reference.
Switching 69 The spanning tree algorithm ensures that the extended LAN contains no loops and that all LANs are connected by: ■ Detecting the presence of loops and automatically computing a logical loop-free portion of the topology, called a spanning tree. The topology is dynamically pruned to a spanning tree by declaring the ports on a switch redundant, and placing the ports into a ‘Blocking’ state.
AT-8700XL Series Switch User Guide Routing Information Protocol (RIP) Routing protocols such as RIPv1 and RIPv2 can be enabled on a VLAN. For example, to enable RIPv2 on the admin VLAN, use the command: ADD IP RIP INTERFACE=vlan11 SEND=RIP2 RECEIVE=BOTH To display information about RIP (Figure on page 70), use the command: SHOW IP RIP Example output from the SHOW IP RIP command.
Switching 71 Triggers The Trigger Facility can be used to automatically run specified command scripts when particular triggers are activated. When a trigger is activated by an event, global parameters and parameters specific to the event are passed to the script that is run. For a full description of the Trigger Facility, see the Trigger Facility chapter in the AT-8700XL Series Software Reference. The switch can generate triggers to activate scripts when a fibre uplink port loses or gains coherent light.
Chapter 6 Maintenance and Troubleshooting This Chapter If you are familiar with networking and switch operations, you may be able to diagnose and solve some problems yourself. This chapter gives tips on how to: ■ start your switch (see “How the Switch Starts Up” on page 74). ■ avoid problems (see “How to Avoid Problems” on page 75). ■ reconfigure your switch if you accidentally clear the FLASH memory (see “What to Do if You Clear FLASH Memory Completely” on page 77).
AT-8700XL Series Switch User Guide How the Switch Starts Up The sequence of operations that the switch performs when it boots are: 1. Perform startup self tests. 2. Perform the install override option. 3. Load the EPROM release as the INSTALL boot. 4. Inspect and check INSTALL information. 5. Load the required release as the main boot. 6. Start the switch. 7. Execute the boot script, if one has been configured.
Maintenance and Troubleshooting 75 Table 7: Switch startup sequence keystrokes. Pressing key... Forces the switch to... Y Load the EPROM release, with no patch, and skip straight to step 6. S Start with the default configuration. Any boot script or NVS configuration is ignored. N Configure from NVS, ignoring any boot script. [Ctrl/D] Enter diagnostics mode. When you start the switch the EPROM release is always loaded first.
AT-8700XL Series Switch User Guide Configure logging The logging facility stores log messages for events with a specified severity in a log file. You can change the size of the log file, and the kind of messages recorded. You can configure the switch to output log messages in several ways, including to a remote switch with a specified IP address, or as an email to a particular email address. The switch can also receive log messages from another switch.
Maintenance and Troubleshooting 77 What to Do if You Clear FLASH Memory Completely DO NOT clear the FLASH memory completely. The software release files are stored in FLASH, and clearing it would leave no software to run the switch. If you accidentally do this, you will need to: 1. Boot with default configuration. Reboot the switch from a terminal connected to the asynchronous terminal port (not Telnet).
AT-8700XL Series Switch User Guide What to Do if Passwords are Lost If a user forgets their password, to reset the password from an account with MANAGER privilege, enter the command: SET USER=login-name PASSWORD=password You can reset passwords for accounts with MANAGER privilege with the same command, provided the manager can login to at least one account with MANAGER privilege. If you require further assistance contact your authorised distributor or reseller.
Maintenance and Troubleshooting 79 Resetting Switch Defaults To restart the switch at any time with no configuration, enter the command: RESTART SWITCH CONFIG=NONE If boot.cfg has changed, to set it back to the default configuration by saving the default dynamic configuration to the boot.cfg file, enter the command: CREATE CONFIG=boot.cfg To set the switch to restart with the boot configuration file, enter the command: SET CONFIG=boot.cfg DO NOT clear the FLASH memory completely.
AT-8700XL Series Switch User Guide If PING to the end destination fails, PING intermediate network addresses. If you can successfully PING some network addresses, and not others, you can deduce which link in the network is down. Note that if Network Address Translation (NAT) is configured on the remote switch, PINGing devices connected to it may give misleading information. For more information about using PING, see the Internet Protocol (IP) chapter in the AT-8700XL Series Software Reference.
Maintenance and Troubleshooting 81 Troubleshooting DHCP IP Addresses Your switch is acting as a DHCP client If your switch is acting as a DHCP client the switch should receive its IP address dynamically. If your switch is not receiving an IP address, check that the domain name and host name are correct. Your switch is acting as a DHCP server If your switch is not assigning IP addresses to a host, or hosts, on the subnet perform this procedure: 1.
