Cabletron Systems TSX-1620 manual Changing Source Routing Port Parameters, STE Span Mode

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Using the TSX-1620 Bridge View

NOTES

A Source Route-capable bridge has the ability to embed Largest Frame size information into the explorer packets. If there are multiple bridge hops from one end node to another, this allows the end stations to realize the maximum frame size limits for any network segment in the path between them, and adjust their Mtu size accordingly.

If there are multiple hops from one end node to another, consider the lowest Largest Frame Size of all network segments and bridges in the path when setting the Largest Frame Size. It is possible that an older bridge may support a lower maximum frame size; subsequently the stations would have to reduce their Mtu size in order to communicate over it. Largest Frame size is different for 4 and 16 Mbps Token Rings (4,500 bytes and 18,000 bytes, respectively), and Ethernet network segments have a maximum frame size of 1,500 bytes.

STE Span Mode

The Spanning Tree Explorer Span Mode determines how a bridge port behaves when it receives an STE packet (also known as Single Route Explorer packet). Possible STE Span modes are disabled, forced, and auto-span, as described earlier in this section.

Changing Source Routing Port Parameters

To change a port’s Hop Count, Local Segment, Bridge Number, or Target

Segment:

1.In the Source Routing Configuration window, use the scroll list to display the physical TSX-1620 port for which you want to change values.

2.Select a port by clicking mouse button 1 on the port you want to change. You can only select one port at a time. The port’s index number and Source Routing parameters appear in the boxes below the list.

3.Highlight and edit the Hop Count, Local Segment, Bridge Number, and Target Segment boxes as required.

4.Once you have made all of your edits, click on the Apply button.

To change a port’s Largest Frame or STE Span Mode:

1.In the Source Routing Configuration window, use the scroll list to display the physical TSX-1620 port you want to change.

2.Click mouse button 1 on the port you want to change (you can only select one port at a time). The port’s Source Routing parameters appear in the boxes below the list.

3.Click on the Largest Frame or STE Span Mode button and then drag to the appropriate menu choice. The selected value appears on the button.

4.Once you have made all of your choices, click on the Apply button.

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The Source Routing Configuration Window

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Contents Portable Management Application For TSX-1620 User’s Guide Page Virus Disclaimer Restricted Rights Notice Applicable to licenses to the United States Government onlyContents Chapter Using the TSX-1620 Bridge View ContentsUsing the TSX-1620 User’s Guide Introduction to Spma for the TSX-1620What’s not in the TSX-1620 User’s Guide Introduction to Spma for the TSX-1620Conventions Screen DisplaysIntroduction to Spma for the TSX-1620 Using the Mouse ButtonGetting Help FTPTSX-1620 Firmware Introduction to Spma for the TSX-1620 TSX-1620 Firmware Using the TSX-1620 Hub View Using the Hub ViewUsing the TSX-1620 Hub View Navigating Through the Hub ViewHub View Front Panel TSX-1620 Hub ViewUptime Device NameDevice Location IP AddressUsing the Mouse in the TSX-1620 Hub View Port StatusTSX-1620 Application Displays Interface Application Display Interface Application Display Menu StructureBridge Application Display Monitoring Device Performance Port Display FormInterface Port Display Form Options Oper StatusType SpeedInterface Number StatisticsUsing the TSX-1620 Hub View Port Color Codes for the Interface Application Display Tp Frames Forwarded AdminBridge Port Display Form Options Clearing Statistical Information Tp Frames FilteredSr Frames Forwarded Bridge Port NumberSetting the Polling Intervals Managing the DeviceContact Status Device General StatusDevice Configuration Port Operational StateUsing the Bridge Config Utility Defining Community Names Configuring Your TSX-1620’s Serial Port Using the TSX-1620 Hub View Performing if Configuration 11. The if Configuration WindowChanging the Displayed Interface Performing Interface ConfigurationViewing NetBios Information Viewing and Changing System Information NameAddress PortSetting the Device Date, Time, and Daylight Savings Mode Configuring Port SecurityViewing Your Port Security Settings Using the TSX-1620 Hub View Configuring Your Port Security Settings Viewing the Interface List 17. The Interface List WindowPerforming Source Routing Configuration for a Port Accessing the MIB I, II ToolAccessing Bridge Management Viewing a Bridge Port’s Source Address List Enabling/Disabling Bridging for TSX-1620 Ports Enabling and Disabling Bridge PortsUsing the TSX-1620 Hub View Using the TSX-1620 Hub View Managing the Device Using the TSX-1620 Bridge View Bridging BasicsTransparent Bridging Source Route BridgingAccessing the Bridge Traffic View Window Source Route Transparent BridgesNavigating Through the Bridge Traffic View Click on in the Bridge Traffic View front panel MAC Address Bridge Traffic View Front PanelTime and Date Bridge Port Display Port # MACEnabled Blocking Using the Detail View Window Detail View Showing Two PortsBridge Status Window Bridge Statistics Window DelayExceedDiscard Bridging TypeTotal Ports IfIndexFiltering Database Window MtuExceedDiscardViewing the Filtering Database Ageing Time secs Learned Entry DiscardsSource Address StatusReceive Port Destination PortChanging the Filtering Database Dynamic Ageing Time Changing Forwarding and Static Database Entries Changing the Filtering Database Ageing TimeStatic Address Forward To PortsDeleting a Static Table Entry Spanning Tree Protocol WindowFinding a Filtering Database MAC Address 11. Spanning Tree Protocol Window Forward Delay Spanning Tree VersionDesignated Root Num. Topology ChgsMax Age Hello TimePriority Root PortRoot Hello Time Root Forward DelayRoot Max Age Priority Port Spanning Tree Port Parameters WindowChanging Spanning Tree Parameters Path Cost Designated CostSource Routing Configuration Window Changing a Port’s STA ParametersDesignated Bridge Designated PortInterface Hop CountLocal Segment Number Bridge NumberTarget Segment Number Largest FrameSTE Span Mode Changing Source Routing Port ParametersCreating Bridge Traffic Charts, Graphs and Meters 14. Pie Chart WindowConfiguring Forwarding Thresholds 15. Port Forwarding Thresholds Window Using the TSX-1620 Bridge View Viewing the Forwarding Log To clear all logs or just the current log Changing Polling Intervals 17. The Polling Intervals WindowEnabling and Disabling Ports Enabling and Disabling a Transparent Bridge PortDevice Info Bridge Port Display Info18. Port Enable/Disable Source Routing Window Enabling and Disabling a Source Routing Bridge PortUsing the TSX-1620 Bridge View Index Index-2 Index-3 Index-4 Index-5 Index Index-6

TSX-1620 specifications

The Cabletron Systems TSX-1620 is a pioneering piece of network hardware that played a significant role in the evolution of networking technologies during the 1990s. This well-engineered device is primarily recognized as a multi-port Ethernet switch that was designed to provide high-speed, reliable connectivity for local area networks (LANs). As organizations increasingly demanded robust performance and enhanced network capabilities, the TSX-1620 emerged as a powerful solution to address these needs.

One of the key features of the TSX-1620 is its support for both 10Base-T and 100Base-T standards, catering to both standard Ethernet and Fast Ethernet connections. This versatility allowed businesses to easily transition from older Ethernet systems to newer, faster specifications without replacing their entire infrastructure. The switch could intelligently manage traffic between devices, minimizing collisions and ensuring that data packets were transmitted efficiently.

The architecture of the TSX-1620 includes support for various advanced technologies that enhance network performance. Its store-and-forward switching capability improves data integrity by checking packets for errors before forwarding them to their destination. This process reduces the risk of corrupted data affecting network performance, making it especially valuable for mission-critical applications.

Another notable feature is its robust security tools. The TSX-1620 incorporates VLAN (Virtual Local Area Network) support, enabling network administrators to segment traffic and improve security across different departments or user groups. This not only mitigates the risk associated with unauthorized access but also optimizes network traffic by confining broadcasts to designated VLANs.

Scalability is a prominent characteristic of the TSX-1620. With ports available for expansion, organizations could easily increase their network capacity as their needs grew. This feature promoted long-term investment in network infrastructure, allowing businesses to adapt quickly to changing demands without incurring substantial costs.

Reliability is paramount in networking equipment, and the TSX-1620 does not disappoint. Engineered with high-quality components, this switch was built to operate efficiently in a variety of environments while maintaining stable performance. Its design ensures a cooling mechanism that minimizes overheating, thereby prolonging its operational lifespan.

In summary, the Cabletron Systems TSX-1620 represents a significant advancement in network switch technology during its era. Its combination of speed, versatility, security features, and robust architecture made it a valuable asset for organizations seeking to enhance their networking capabilities and prepare for the future.
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