Cabletron Systems 9H42X-XX manual Changing the Spanning Tree Algorithm Protocol Type

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Bridging

Changing the Spanning Tree Algorithm Protocol Type

To change the type of protocol used in Spanning Tree:

1.Click the mouse on the appropriate option button: IEEE 802.1, DEC, or None.

2.Click on .

TIP

!

The selected Spanning Tree Algorithm protocol type will be applied to the bridge. If you selected None, the Spanning Tree Algorithm will be disabled (if it already was enabled). If STA Protocol Type was changed from None to IEEE 802.1 or DEC, you must restart the bridge for the newly selected STA protocol to be applied.

If your network does not have redundant bridged paths, turning off Spanning Tree can improve network performance by cutting down on management (BPDU) traffic.

All bridges in a network must use the same Spanning Tree version. Mixing Spanning Tree Algorithm protocols will cause an unstable network.

CAUTION

Changing Hello Time

If the bridge is the Root Bridge, or is attempting to become the Root, and you want to change the length of time the bridge waits between sending configuration BPDUs:

1.Highlight the Hello Time field, and type in a new value.

2.Click on .

The IEEE 802.1d specification recommends that Hello Time = 2 seconds; the allowable range is 1 to 10 seconds.

Changing Max Age Time

If the 9H42x-xx module is the Root Bridge or attempting to become the Root, and you want to change the maximum time that bridge protocol information will be kept before it is discarded:

1.Highlight the Max Age field, and type in a new value.

2.Click on .

The IEEE 802.1d specification recommends that Max Age = 20 seconds; the allowable range is 6 to 40 seconds.

Bridge Spanning Tree

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Contents Cabletron Systems Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Statistics Chapter BridgingIndex Contents Viii Introduction Introduction Using the 9H42x-xx User’s Guide Common 9H42x-xx Window Fields Related ManualsSoftware Conventions Location Device NameIP Address MAC AddressGetting Help Using ButtonsUsing On-line Help 9H42x-xx Firmware Getting Help from Cabletron Systems’ Global Call CenterIntroduction 9H42x-xx Firmware 9H42x-xx Module View From an individual device iconViewing Module Information From the MMAC-Plus Chassis ViewUp Time Front Panel InformationConnection Status Port StatusFirmware Boot PromMenu Structure TimeH42x-xx Module View Menu Structure Device MenuPort Status Menu Utilities MenuHelp Menu Bridge MenuPort Status Displays Port MenuSelecting a Port Status View StatusMapping ErrorsLoad Type Chassis Manager WindowSpeed Port Status Color CodesViewing the Device Type Chassis Manager Window To view the Chassis Manager windowIndex Viewing I/F Summary InformationUpTime Interface Performance Statistics/Bar Graphs DescriptionSta Raw CountsRate Viewing Interface Detail AddressNon-Unicast ErrorUnicast DiscardedMaking Sense of Detail Statistics Using the Find Source Address FeaturePackets Transmitted Transmit only Managing the Module Configuring PortsFull Duplex Standard ModeConfiguring Standard Ethernet Ports Configuring Fast Ethernet Ports Fast Ethernet ConfigurationPort Type Current Operational ModeDesired Operational Mode Link StateAdvertised Abilities Remote CapabilitiesSetting the Desired Operational Mode Setting the Device Date and Time 10. Edit Time WindowEnabling and Disabling Ports 11. Edit Date WindowTo enable or disable bridging for an individual interface 9H42x-xx Module View Managing the Module Alarm Configuration About Rmon Alarms and EventsBasic Alarm Configuration Alarm ConfigurationAccessing the Basic Alarm Configuration Window Rmon Basic Alarm Configuration WindowPort Number Viewing Alarm StatusKilobits Total Errors Broadcasts/Multicasts If NumberRising Threshold Log/TrapPolling Interval Rising ActionCreating and Editing a Basic Alarm Alarm Configuration Alarm Configuration Disabling a Basic Alarm Viewing the Basic Alarm LogAlarm Configuration Advanced Alarm Configuration Accessing the Rmon Advanced Alarm/Event ListAlarm Configuration Such as the Hosts component, not present, or Creating and Editing an Advanced Alarm Rmon Create/Edit Alarms WindowAlarm Configuration Alarm Configuration Alarm Configuration Table index.lengthin bytes.instancein decimal format Alarm Configuration Creating and Editing an Event Rmon Create/Edit Events Window Alarm Configuration Adding Actions to an Event Rmon Create/Edit Actions Window Or deleted use the button to update the table at any time Deleting an Alarm, Event, or Action Viewing an Advanced Alarm Event LogHow Rising and Falling Thresholds Work Event Accessing the Statistics Windows StatisticsTot. Errors Rmon StatisticsPackets ProblemsBytes Drop EventsFrame Size Bytes Packets Viewing Total, Delta, and Accumulated Statistics Interface Statistics Printing StatisticsInterface Statistics Window Unicast Bridging Bridging BasicsAn Overview of Bridge Management More on Transparent BridgingBridge Status Window Spanning Tree State Interface Speed Interface TypeBridge Address Enabling and Disabling Individual Interfaces Enabling and Disabling All Installed InterfacesEnabling and Disabling Bridging From the Bridge Status windowBridge Statistics Performance GraphsForwarded Green Xmitted Blue Total Errors RedFiltered Magenta Configuring the Bridge Performance GraphsUsing Source Addressing Altering the Ageing TimeBridge Spanning Tree Viewing Spanning Tree Parameters Bridge Spanning Tree WindowRoot Bridge Bridge-level ParametersBridge Priority Root CostHello Time Forwarding DelayProtocol Max AgePort-specific Parameters Topology Changing Bridge Spanning Tree ParametersDesignated Port Changing Bridge PriorityChanging Max Age Time Changing the Spanning Tree Algorithm Protocol TypeChanging Hello Time Changing Path Cost Changing Forwarding Delay TimeChanging Port Priority Filtering Database Dynamic, or LearnedFiltering Database Window Capacity ListNumber Ageing TimeReceive Port Configuring the Filtering DatabaseSource Port Port FilteringChanging the Type of Entry Changing the Receive PortChanging the Port Filtering Action Adding or Deleting Individual EntriesConfiguring Duplex Modes Clearing All Permanent, Static, or Dynamic EntriesTo access the Duplex Modes window Bridging Bridging Configuring Duplex Modes Index NumericsIndex-2 Index-3 Index Index-4

9H42X-XX specifications

Cabletron Systems 9H42X-XX is an advanced networking device recognized for its robust performance and reliability in various enterprise environments. Designed to meet the growing demands of data communication, this model serves as a vital component of network infrastructure, offering a myriad of features and technologies.

One of the standout characteristics of the 9H42X-XX is its high-speed data processing capabilities. Equipped with multiple Gigabit Ethernet ports, it ensures rapid data transfer rates, making it ideal for bandwidth-intensive applications. This model supports both IPv4 and IPv6 addressing, ensuring compatibility with modern networking standards and future-proofing the investment for organizations transitioning to newer technologies.

The 9H42X-XX excels in flexibility and scalability, accommodating a range of networking topologies. Its modular design allows for the addition of different interface cards, catering to specific networking requirements such as VoIP, video streaming, and cloud services. This adaptiveness is crucial for organizations that must optimize their network as needs evolve over time.

Security is a primary consideration in the design of the 9H42X-XX. With built-in firewall capabilities and support for advanced encryption protocols, data integrity and confidentiality are ensured. Furthermore, the device offers robust access control features, allowing organizations to define user permissions and protect sensitive information from unauthorized access.

Another important feature is the comprehensive management options available with the 9H42X-XX. It provides a user-friendly interface for network administrators to monitor traffic, configure settings, and troubleshoot issues. This ease of management contributes to reduced downtimes and better overall network efficiency.

Additionally, the Cabletron Systems 9H42X-XX is known for its durability and performance consistency in varying environmental conditions. This resilience makes it suitable for both indoor and outdoor deployments, further extending its usability across different types of organizations.

In summary, the Cabletron Systems 9H42X-XX is a versatile networking solution that combines high-speed connectivity, security features, and ease of management within its robust architecture. Its adaptability and technical specifications position it as a reliable choice for enterprises looking to upgrade their network infrastructure and accommodate future growth.
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