Cabletron Systems NB30 Interface Name, Interface Type, Bridge Port Address Local Ethernet Port

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NB-30 Bridging

¥NO EXT CLOCK (blue) Ñ Indicates that the remote port is not receiving a clock signal from the DCE.

Interface Name

This settable information Þeld allows you to enter a name for the bridgeÕs active local port and its remote port. The default name for the bridgeÕs two network interfaces are ETHERNET PORT and REMOTE PORT, respectively. To assign a new name to an interface:

1.Click on the I-bar cursor () to the right of the Interface Name field. The Bridge Port Name text box will appear.

2.Type in the new interface name in the text box (up to 14 characters), then click on OK.

The assigned name will appear in the Bridge Interface Name information Þeld.

Interface Type

Indicates the interface type which applies to each NB-30 bridging port interface. Possible types are 802.3 SPI (SPIM) for the local Ethernet port and RS449 (Remote Interface Card supporting RS449/422 communications),V.35 (Remote Interface Card supporting V.35 communications), DSX1/D4 (superframe format for T1 link), DSX1/ESF (extended superframe format for T1 link).

Bridge Port Address — Local Ethernet Port

Indicates the physical address of the local Ethernet port on the NB-30. No physical address is available for the remote port.

Segment Name

This settable information Þeld allows you to enter a name for each segment attached to the bridgeÕs ports. The default name for the bridgeÕs two network segments are LAN_1 and REMOTE LINK, respectively. To assign a new name to the network segment connected to a port:

1.Click on the I-bar cursor () to the right of the Segment Name field. The Bridge Network Name text box will appear.

2.Type in the new segment name in the text box, then click on OK.

The newly assigned name will appear in the Bridge Segment Name information Þeld.

Date and Time

At the bottom of the Bridge Status window, Þelds display the current date and time set at the NB-30Õs internal clock. You can change the date and time by using

the and symbols respectively. Clicking on these symbols will invoke Date and Time pop-up windows which you can use to set the internal clock (as described in the previous chapter).

Bridge Status

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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 Using On-line Help Accessing On-line DocumentationGetting Help 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 StructureUtilities Menu Device MenuHelp Menu Board 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 Interface Type Interface NameBridge Port Address Local Ethernet Port Segment NameEnabling and Disabling Bridging Accessing Bridge Status Window OptionsPerformance Graphs Bridge StatisticsFrames Forwarded Frames ReceivedFrames Filtered Nothing Device ErrorsDiscarded Inbound Ethernet Port Only Forwarded OutboundTimeout Remote Port Only CRC ErrorsTotal Errors Out of Window Coll. Ethernet Port OnlyBridge Summary Statistics Window Bridge Summary StatisticsEthernet and Remote Port Statistics Remote Port Statistics Window Packets Filtered Blue Ethernet Port Only Xmit Aborts Ethernet Port OnlyOOW Ethernet Port Only Bridge Spanning Tree TimeoutFraming GiantsBridge Spanning Tree Window Bridge Level Parameters Protocol Forwarding DelayHello Time Max AgeBridge Port Level Parameters Topology Configuring Spanning TreeChanging Bridge Priority Changing the Spanning Tree Algorithm Protocol TypeChanging Forwarding Delay Time Changing Hello TimeChanging Max Age Time Filtering Database Changing Port PriorityChanging Path Cost NB-30 Bridging Number TypeCapacity Ageing TimeList Configuring the Filtering DatabaseAddress Port FilteringChanging the Type of Entry Changing the Port Filtering ActionAdding or Deleting Individual Filtering Database Entries 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 DefaultsSelect Restore Defaults Resetting Bridge CountersSelect Reset Counters Restarting the BridgeNB-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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