Cabletron Systems NB30 manual Bridge Statistics, Performance Graphs

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NB-30 Bridging

You can also disable bridging across all ports or on your NB-30 from the Chassis View window. To disable bridging at the device level from the Chassis View window:

1.Click on the Board Index (1) in the front panel display. A menu will appear.

2.Click on Enable Bridge to restart bridging at the device level, or Disable Bridge to halt bridging across the entire device.

Bridge Statistics

The following sections describe the Statistics windows that are available for the NB-30 bridge that is being monitored via SPECTRUM Element Manager, both at the device and port levels.

Performance Graphs

You use Bridge Performance Graphs to view a color-coded strip chart that shows you the trafÞc being bridged through all networks or an individual network supported by your device. You can conÞgure the display to show frames Þltered, forwarded, or transmitted across the device or its individual bridging interfaces, as well as the number of errors experienced at both levels. The graph has an X axis that indicates the 60-second interval over which charting occurs continuously, while its Y axis measures the number of packets or errors that are processed by the device or its bridging interfaces.

You can select the type of errors you wish to monitor by using the available menu buttons. When you click on the error type you wish to view, the name of that error will appear in the button, and the Performance Graph will refresh. The graph will now generate a strip chart based on the newly deÞned parameters.

At the device level, a Detail button on the window allows you to compare the packets forwarded, Þltered, or transmitted on all networks supported by the device, as well as errors on all networks.

For a selected bridged network, the Detail button allows you to view the number of packets forwarded to, or received from, each other network supported by the device.

To access the device-level Bridge Performance Graph window:

1.From the Bridge Status window, click on Bridge. A menu will appear.

2.Click on Performance Graph.... The NB-30 Bridge Performance Graph window, Figure 3-2, will appear.

Bridge Statistics

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Contents NB30 User’s Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Index ContentsIntroduction Using the NB-30 Bridge User’s GuideIntroduction Related ManualsSoftware Conventions Using the MouseDevice Description Common NB-30 Bridge Window FieldsUsing Window Buttons Getting Help Using On-line HelpAccessing On-line Documentation Getting Help from the Cabletron Systems Global Call Center NB-30 Bridge FirmwareIntroduction NB-30 Bridge Firmware NB-30 Bridge Chassis View Viewing Chassis Information Front Panel Information Date Menu StructureBoard Menu Device MenuUtilities Menu Help MenuChassis Manager NB-30 Bridge Port Status DisplayViewing Hardware Types Managing the BridgeEdit Date Window Setting the Device Date and TimeEnabling and Disabling Bridging NB-30 Bridge Chassis View Managing the Bridge Bridging Basics NB-30 BridgingViewing and Managing Bridging Interfaces About Transparent BridgingBridge Status Bridge Location Bridge Status ConditionOK/SQE on Bridge State on InterfaceBridge Status on Remote Port Interface Segment Name Interface NameInterface Type Bridge Port Address Local Ethernet PortEnabling and Disabling Bridging Accessing Bridge Status Window OptionsPerformance Graphs Bridge StatisticsFrames Filtered Frames ForwardedFrames Received Forwarded Outbound Device ErrorsNothing Discarded Inbound Ethernet Port OnlyOut of Window Coll. Ethernet Port Only CRC ErrorsTimeout Remote Port Only Total ErrorsBridge Summary Statistics Window Bridge Summary StatisticsEthernet and Remote Port Statistics Remote Port Statistics Window OOW Ethernet Port Only Packets Filtered Blue Ethernet Port OnlyXmit Aborts Ethernet Port Only Giants TimeoutBridge Spanning Tree FramingBridge Spanning Tree Window Bridge Level Parameters Max Age Forwarding DelayProtocol Hello TimeBridge Port Level Parameters Changing the Spanning Tree Algorithm Protocol Type Configuring Spanning TreeTopology Changing Bridge PriorityChanging Max Age Time Changing Forwarding Delay TimeChanging Hello Time Changing Path Cost Filtering DatabaseChanging Port Priority NB-30 Bridging Ageing Time TypeNumber CapacityPort Filtering Configuring the Filtering DatabaseList AddressAdding or Deleting Individual Filtering Database Entries Changing the Type of EntryChanging the Port Filtering Action Erasing Entries from the Permanent or Acquired Databases DSX-1 SummaryBridge DSX-1 Summary Window Configuring, Running, and Checking the Loopback TestViewing the T1 Link Channel Status Restoring Bridge DefaultsRestarting the Bridge Resetting Bridge CountersSelect Restore Defaults Select Reset CountersNB-30 Bridging Restarting the Bridge NB-30 Bridging Restarting the Bridge Index Index-2 Index-3 Index Index-4

NB30 specifications

Cabletron Systems NB30 is a noteworthy networking device that emerged in the mid-1990s as a critical component for businesses looking to enhance their local area network (LAN) capabilities. Designed primarily for the burgeoning demand of network speed and reliability, the NB30 served as a bridge in networking technology, offering organizations a robust solution to keep up with the advancing digital landscape.

One of the main features of the Cabletron NB30 is its ability to support both Ethernet and Token Ring protocols. This dual compatibility made it an attractive choice for enterprises that were transitioning from older networking systems to newer infrastructures. By accommodating both technologies, the NB30 enabled smoother migrations without necessitating a complete overhaul of existing networking components.

Another significant characteristic of the NB30 is its modular architecture. This design allowed organizations to customize their networking setup according to specific needs and preferences. Users could add or replace modules to enhance functionality, from extra ports to support additional devices or advanced features like network management tools, ensuring that their systems could grow and evolve in tandem with their business requirements.

The NB30 also utilized a stackable design, which facilitated scalability. Organizations could easily connect multiple NB30 units to increase their network capacity and performance. This stacking capability was a significant advantage as it allowed for efficient use of space and resources while providing a path for future growth.

In terms of performance, the Cabletron NB30 boasted a switching capacity that enabled quick data transfer rates, reducing latency and improving overall network responsiveness. This speed was crucial during a period when businesses were increasingly reliant on real-time data exchange and communication.

Additionally, the NB30 incorporated advanced network management features, enabling administrators to monitor traffic, diagnose issues, and implement changes with ease. This level of control was essential for maintaining network health, ensuring that businesses remained operational without unnecessary downtimes.

Overall, Cabletron Systems NB30 played a pivotal role in the evolution of networking technology. Its combination of protocol flexibility, modular design, scalability, and robust performance made it a popular choice for businesses looking to create efficient, dependable networks in an era of rapid technological advancement. The NB30's legacy continues to influence modern networking solutions, demonstrating the importance of adaptability and performance in the ever-changing digital world.
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