Document Outline

• Preface
  • Purpose of This Guide
  • How This Guide is Organized
  • Document Conventions
    • Web Browser Interface
    • DEC VT100 Terminal Configuration
    • Generic (Dumb) Terminal Configuration
    • Enabling an Omega Option
    • Menus
    • User-Supplied Variables
    • Notes provide additional information.
  • Where to Find Related Guides
• Chapter 1
  • Introduction
  • Software Features
  • Local Management
    • Figure 11 Switch With Terminal or PC
  • Remote Management in Non-TCP/IP Networks
  • Remote Management In TCP/IP Networks
    • TCP/IP With BootP or DHCP
  • Management Through a Web Browser
  • Where to Go Next
• Chapter 2
  • Getting Started
  • Connecting a Terminal and Starting a Local Session
    • 1. Connect a terminal or PC directly to the switch’s RS232 port and configure the terminal or emu...
    • 2. Press <Return>.
    • Allied Telesyn AT8124XL Ethernet Switch: 1.0 Main Menu
      • Figure 21 Main Menu
  • Switch Default Settings
    • Setting Switch Defaults
      • 1. Attach a terminal to the RS232 port located on the front panel of the switch and begin the ter...
      • 2. Press <Reset> located on the right side of the switch’s front panel.
      • 3. Immediately press any key when you see Hit any key to run diagnostics or to reload system soft...
      • 4. Select D from the menu. The following warning message displays:
      • 5. Select Y.
    • Table 21 Default Settings
  • Menu Navigation Using the Terminal Interface
    • Displaying Submenus
      • 1. Press the up (�), down (Ø), left (¨), or right (Æ) arrow key to highlight an option.
      • 2. Press <Return>.
    • Enabling or Disabling an Option
      • 1. Select Port status and configuration from the main menu to display a list of ports.
      • 2. Select a port number, for example, Port 11, by pressing the up arrow key to highlight it; and ...
      • Port Configuration Menu
      • Port 11
        • Figure 22 Sample Port Configuration Menu, Terminal Interface
    • Entering or Modifying Information
      • 1. Select System configuration>System name to display the System Configuration Menu.
      • 2. Configure the switch name at the prompt as follows:
      • System Configuration Menu
    • Quitting the Terminal Interface
  • Configuring IP Parameters
    • 1. Select System configuration>IP Parameters from the main menu.
    • 2. Select IP address, press <Return> to insert a type-in field, and enter a unique IP address for...
    • 3. Select Subnet mask and enter the switch’s subnet mask.
    • 4. Select Gateway address and enter the address if you are sending packets to another IP network.
    • For non-IP environments, you can use MAC addresses to connect to remote Allied Telesyn switches a...
  • Menu Navigation Using A Web Browser
    • When directed by this guide to select something, that means you click on it.
      • 1. If your PC with the browser is on the same side of a firewall as the switch, configure your br...
      • 2. Enter the switch’s IP address (or name) in the locator field:
      • Figure 23 Entering the Switch’s IP Address
      • Figure 24 The Switch View
        • 3. Select, that is, click on, menu items as follows:
        • 4. Link to other Allied Telesyn sites as follows:
      • Figure 25 Sample Omega Menus
      • Displaying Submenus
      • Selecting an Option
      • Entering or Modifying Information
        • Figure 26 Type-In Field
      • Quitting Omega
  • Resetting the Switch
  • About Optional Configurations
  • Menu Tree
    • Figure 27 Omega Menu Tree, 1 of 2
      • Figure 2-7 Omega Menu Tree, 2 of 2
  • Where to Go Next
• Chapter 3
  • Configuration
  • IP Parameters
    • Menu:
    • An IP address
    • Subnet mask
    • Gateway address
    • Domain Name Server
    • Default Domain Name
    • Manager address
    • Download password
    • SNMP Community strings
    • Location
    • Contact
    • For more details about SNMP management, refer to your SNMP management documentation.
  • Port Configuration
    • Menu:
    • Figure 31 Port Configuration Menu
    • Description of Options
      • Enable or disable the port
      • Transmission mode
        • Auto-negotiating
        • Full-duplex
        • Half-duplex
      • Switching mode
        • Store-and-forward
        • Cut-through (for 100 Mbps operation)
    • Port Naming
      • To name a port
        • 1. Select Port Status and configuration to display a list of ports.
        • 2. Select a port number from the list to display the Port Status Menu.
        • 3. Enter a name of up to 20 characters in the Port name field.
        • 4. Return to the Port Status Menu to see the new name displayed on the port list.
        • Figure 32 Port List Sample
    • Fixed Port Names
  • Spanning Tree Configuration
    • Menu:
    • Configuring Spanning Tree Parameters
      • Menu:
      • Bridge Priority
      • Max Age Time
    • Aging time for BPDUs is different from aging time in the MAC address table.
      • Hello Time
      • Forwarding Delay
      • Configuring the Root Port
        • Menu
        • Root Priority
        • Port Cost
  • System Configuration
    • Menu
    • Figure 33 System Configuration Menu
    • Naming the Switch
      • To name the switch
        • 1. Select System configuration>System name.
        • 2. Enter a unique name of up to 20 characters in the type-in field.
      • To delete or change the switch’s name
        • 1. Select System configuration>System Name.
        • 2. Do one of the following:
    • Changing the Aging Time
      • To change the aging time
        • 1. Select System configuration>MAC Address Aging Time to highlight the current value.
        • 2. Enter a new value in the type-in field.
    • Configuring Omega
      • Menu
      • Figure 34 Omega Configuration Screen
        • Password
        • Timeout
        • Local Omega
        • Remote Omega
        • Web-based Omega
    • Configuring a Password
      • To configure a password
        • 1. Select System configuration>Omega Options.
        • 2. Enter a string of up to 20 characters in the Password field.
      • To delete a password
        • 1. Select System configuration>Omega Options.
        • 2. Enter a space in the Password field.
    • Configuring a Timeout Value
      • To configure a timeout value
        • 1. Select System configuration>Omega Options.
        • 2. Enter a value from 0 to 65,535 (in minutes) in the Timeout field.
      • To delete or change a timeout value
        • 1. Select System configuration>Omega Options> Timeout
        • 2. Do one of the following:
    • Backpressure
      • Menu:
    • Although listed in the software, this option is not available and should remain disabled.
  • Terminal Configuration
    • Menu
    • VT100 Compatible or ANSI
      • To use the menus in a VT100-compatible type of terminal configuration
    • Generic (Dumb) Terminal
      • To use the menus in a generic type of terminal configuration
    • Terminal Settings
      • Data bits, stop bits, and parity
      • Transmission mode
      • Data rate (baud rates)
  • Virtual LAN Configuration
    • Menus
    • Figure 35 Virtual LANs Menu
    • Figure 36 VLAN Example
    • Advantages of Using VLANs
      • Figure 37 Switch Ports’ Default VLAN Configuration
    • Defining the VLANs
      • Menu
      • To define VLANs
        • 1. Select Virtual LANs from the main menu to display the Virtual LAN Menu.
        • 2. Select Virtual LAN definitions to display the VLAN Definition Menu.
        • Figure 38 VLAN Definition Menu
          • 3. Select Add new table entry to display the next screen.
          • 4. Enter the name East in the type-in field.
          • 5. Repeat the procedure from the beginning to define another VLAN, West.
          • 6. Go to the VLAN Definitions Menu to display the VLANs you just defined. Your VLAN list may now ...
      • To delete or rename VLANs
        • 1. Select Virtual LANs>Virtual LAN definitions to display the list of VLANs similar to the follow...
        • 2. Select the VLAN name you want, for example, Upper Deck; then:
    • Adding Ports to the VLAN
      • Menu
      • 1. Select Port to VLAN configuration from the Virtual LANs menu to get the list of ports and thei...
      • 2. Select the port number, for example, 1, to get the port’s VLAN configuration screen that displ...
      • 3. Select East.
      • 4. Return to the Virtual LAN Menu and repeat the procedure to assign Ports 2 through 12 to East.
      • Figure 39 Ports to VLAN East
        • 5. Repeat the procedure to assign Ports 13 through 25 to West.
      • When adding ports to VLANs, consider the following:
      • To delete a port from a VLAN or change a port’s VLAN assignment
        • 1. Select Port VLAN configuration from the Virtual LANs menu to display the port list with VLAN a...
        • 2. Select the port number you want to delete or change.
        • 3. Do one of the following:
  • Where to Go Next
• Chapter 4
  • Monitoring and Administration
  • Activity Monitor
    • Menu
    • Figure 41 Activity Monitor
  • Connection to a Remote Switch
    • Menu:
    • 1. Select Administration>Connect to a remote system.
    • 2. Specify the switch by one of the following methods:
    • 3. Select Quit from the main menu when you are done.
    • It is important that you select Quit after the Omega session. Otherwise, you may block other sess...
  • Connectivity Verification (Ping)
    • Menu
    • 1. Select Administration>Ping a remote system to see the following display:
    • Figure 42 Ping Menu
      • 2. Specify the system with one of the following methods:
    • Figure 43 Ping Results
  • Ethernet Statistics
    • Menu
    • Navigating the Statistics Graphs Menus
      • Figure 44 Graph of Received Frames, Switch Level
    • Received Statistics
      • To view received statistics at the switch level
    • Table 41 Received Ethernet Frames
      • To view received statistics per port
        • 1. Select Individual Port Overview from the Receive Statistics Graph screen to display a list of ...
        • 2. Select a port number, for example, Port 1.
        • Figure 45 Graph of a Port’s Received Frames
      • You may also view an individual port’s receive statistics through the Port status and configurati...
        • To view received statistics per frame type
          • Figure 46 Sample Graph of a Single Frame Type on All Ports
        • Transmit Frames
          • Menu
          • To view transmit statistics
            • Figure 47 Sample Graph of Transmitted Frames
    • Table 42 Transmit Ethernet Frames
      • To view transmitted statistics per port
        • 1. Select Individual Port Overview from the Transmit Statistics Graph screen to display a list of...
        • 2. Select a port number to view a graph of that port’s transmit statistics.
      • Interpreting the Graphs
        • To use the graphs as monitoring and diagnostics tools
          • 1. Display any of the Ethernet statistics graphs by selecting Ethernet statistics from the main m...
          • 2. Observe the counters and the graph.
          • 3. Identify and then fix the problem.
          • 4. Select Zero all statistics counters on the entire system from any of the Statistics screens af...
  • MAC Address Table
    • Menu
    • Figure 48 MAC Address Menu
    • To display the MAC address table
      • 1. Select MAC Address Table from the main menu.
      • 2. Select Show all MAC addresses to get a screen similar to Figure49.
      • Figure 49 Sample MAC Address Table
    • To display the MAC address table sorted by port
      • 1. Select MAC Address Table>By port MAC addresses to display a list of ports.
      • 2. Select a port number from the list to display a table similar to Figure410:
      • Figure 410 MAC Address Table Sorted by Port
    • Multicast Address
      • Menu
      • To configure a multicast address
        • 1. Obtain your server’s MAC address; this might be the server with restricted applications.
        • 2. Select MAC Address Table>Multicast addresses to display the following:
        • Figure 411 Multicast Address Menu
          • 3. Enter the server’s Mac address from Step1 as the multicast address.
          • 4. Enter one or more port numbers that are to receive multicast packets from this server. Use one...
      • To change ports for multicasts
      • To delete a multicast address
        • 1. Select MAC Address Table>Multicast addresses to display the menu in Figure411 on page4-13.
        • 2. Enter the MAC address you want to delete in the Delete MAC address field.
    • Static MAC Addresses
      • Menu
      • To enter a static address per port
        • 1. Prepare a list of your devices’ MAC addresses and their port assignments.
        • 2. Select MAC Address Table>Per port static MAC addresses to display a similar screen (no MAC add...
        • Figure 412 Adding Static MAC Addresses to the Ports
          • 3. Enter a MAC address in the Add MAC address field. Use following format:
      • To view the static MAC address table
      • To clear the static MAC address table
        • 1. Select MAC Address Table>Clear static MAC table.
        • 2. Select Yes to confirm or No to cancel.
    • Switch’s MAC Address Location
  • Software Downloads
    • Conditions for Network Downloads
    • Using TFTP
      • Image file name
      • IP address
      • Download password
      • File type
    • Downloading Software to One Switch
      • Menu
      • 1. Select Administration>Update software in another system.
      • 2. Specify the system with one of the following methods:
    • Downloading Software to All Switches
      • Menu
      • 1. Select System administration>Broadcast updated software to all systems.
    • You cannot undo this command once executed.
    • Switches with different download passwords will not receive the software download.
      • Using XModem to Download Software
        • Menu
        • 1. Launch Omega’s terminal interface.
        • 2. Select Administration>XModem software update to this system to display the following:
        • 3. Enter Yes and wait for the following message:
        • 4. Initiate the download from your XModem host.
• Chapter 5
  • Diagnostics
  • Running Diagnostics
    • Menu
      • Figure 51 The Diagnostics Screen
  • Resetting Statistics Counters
    • Menu
    • To reset switch (system) counters
      • 1. Select Ethernet Statistics from the main menu to display the Receive Statistics graph.
      • 2. Select Zero all statistics on the entire system.
  • Resetting the Switch
    • Menu
    • To reset the switch
  • Getting Help
• Appendix A
  • Spanning Tree Concepts
    • Spanning Tree Protocol Features
    • Spanning Tree Protocol Parameters
      • Table A1 Spanning Tree Protocol Parameters
    • Spanning Tree Operation
      • Communication between bridges
      • Selecting a root bridge and designated bridges
      • Selecting designated ports
      • Handling duplicate paths
      • Remapping network topology
      • Index
        • Numerics
        • A
        • B
        • C
        • D
        • E
        • F
        • G
        • H
        • I
        • L
        • M
        • N
        • O
        • P
        • Q
        • R
        • S
        • T
        • U
        • V
        • W
        • X