Cabletron Systems TSX-1620 manual Blocking

Page 58

Using the TSX-1620 Bridge View

Blocking

This port is not forwarding or receiving traffic (and

 

therefore no physical address information is added to the

 

Filtering Database) nor is it sending or receiving BPDUs.

 

A port will enter the blocking state for two reasons: if it

 

receives information that another bridge is the

 

designated bridge to the network segment to which this

 

port is attached, or immediately after it has been enabled

 

by management.

Listening

This state is entered from the blocking state when the

 

STA determines that this port should participate in frame

 

relay. The port is processing BPDUs, but is not yet

 

forwarding or receiving traffic or adding information to

 

the Filtering Database.

Learning

The port is processing BPDUs, but is not yet relaying

 

packets. The port is adding address information to the

 

Filtering Database.

Forwarding

A port enters this state from the Learning state. The port

 

is relaying frames and processing BPDUs. A port in this

 

state can enter the Disabled state by management.

Broken

If the port is malfunctioning, this value will display in

 

the State field.

On the TSX-1620, you can use this button to change the Bridge Port display between Source Routing and Transparent bridging frame information. The title bar at the top of the Bridge Port display area indicates the frame type described in the bridge ports.

This two-state button is active when you have bridge statistics displayed in the Bridge Port boxes (i.e., when Frames is selected); otherwise, it is grayed. When you click on Delta, the Forward field in the Bridge Port boxes displays the total number of frames forwarded by this bridge port to another port on the bridge during the last polling interval. When you click on Percentage, the Forward field in the Bridge Port boxes displays the percentage of all frames received by the port from its network segment that were also forwarded to another port on the bridge during the last polling interval.

The Detail View button lets you take a closer look at traffic between two bridge ports. The Detail View button is grayed unless you have two bridge ports selected. For complete instructions on how to use the Detail View, see the next section.

3-10

Accessing the Bridge Traffic View 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 ViewDevice Location UptimeDevice Name 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 Interface Port Display Form Options Monitoring Device PerformancePort Display Form Oper StatusInterface Number TypeSpeed StatisticsUsing the TSX-1620 Hub View Port Color Codes for the Interface Application Display Bridge Port Display Form Options AdminTp Frames Forwarded Sr Frames Forwarded Clearing Statistical InformationTp Frames Filtered Bridge Port NumberSetting the Polling Intervals Managing the DeviceDevice Configuration Contact StatusDevice General Status 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 Address Viewing and Changing System InformationName 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 WindowAccessing Bridge Management Accessing the MIB I, II ToolPerforming Source Routing Configuration for a Port 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 Time and Date Bridge Traffic View Front PanelMAC Address Bridge Port Display Port # MACEnabled Blocking Using the Detail View Window Detail View Showing Two PortsBridge Status Window Bridge Statistics Window Total Ports DelayExceedDiscardBridging Type IfIndexFiltering Database Window MtuExceedDiscardViewing the Filtering Database Source Address Ageing Time secsLearned Entry Discards 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 PortsFinding a Filtering Database MAC Address Spanning Tree Protocol WindowDeleting a Static Table Entry 11. Spanning Tree Protocol Window Designated Root Forward DelaySpanning Tree Version Num. Topology ChgsPriority Max AgeHello Time Root PortRoot Max Age Root Forward DelayRoot Hello Time Changing Spanning Tree Parameters Spanning Tree Port Parameters WindowPriority Port Path Cost Designated CostDesignated Bridge Source Routing Configuration WindowChanging a Port’s STA Parameters Designated PortInterface Hop CountTarget Segment Number Local Segment NumberBridge 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 WindowDevice Info Enabling and Disabling PortsEnabling and Disabling a Transparent Bridge Port 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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