Cabletron Systems 9H42X-XX Changing Bridge Spanning Tree Parameters, Designated Port, Topology

Page 97

Bridging

Designated Port

Displays the network address portion of the Port ID (which includes a manageable Priority component) of the port believed to be the Designated Port for the LAN associated with this port.

The Designated Port ID, along with the Designated Bridge and Port Identifier parameters for the port, is used to determine whether this port should be the Designated Port for the LAN to which it is attached. Management also uses it to determine the Bridged LAN topology.

Topology

This indicates how many times the bridge’s Topology Change flag has been changed since the 9H42x-xx module was last powered-up or initialized. The Topology Change flag increments each time a bridge enters or leaves the network, or when the Root Bridge ID changes.

Changing Bridge Spanning Tree Parameters

The Bridge Spanning Tree window allows you to update the following parameters for the 9H42x-xx module. When you have finished making changes to

the following individual parameters, you must click on at the bottom of the Spanning Tree window to write the changes to the device.

NOTE

Any values you set at the bridge will cause a Topology Change flag to be issued in the next Configuration BPDUs it transmits. This will cause the bridged network to immediately recalculate Spanning Tree and change topology accordingly.

Changing Bridge Priority

To change the part of the bridge address that contains the identifier used in the Spanning Tree Algorithm for priority comparisons:

1.Highlight the Bridge Priority field.

2.Enter the new identifier, in hexadecimal format; the allowed range is 0-FFFF hexadecimal.

3.Click on .

The selected Bridge Priority will be applied to the bridge (a lower number indicates a higher priority in the root selection process).

5-16

Bridge Spanning Tree

Page 96 Page 98
Image 97
Page 96 Page 98
Contents Cabletron Systems Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Bridging Chapter StatisticsIndex Contents Viii Introduction Introduction Using the 9H42x-xx User’s Guide Software Conventions Related ManualsCommon 9H42x-xx Window Fields IP Address Device NameLocation MAC AddressUsing On-line Help Using ButtonsGetting Help Getting Help from Cabletron Systems’ Global Call Center 9H42x-xx FirmwareIntroduction 9H42x-xx Firmware From an individual device icon 9H42x-xx Module ViewFrom the MMAC-Plus Chassis View Viewing Module InformationConnection Status Front Panel InformationUp Time Port StatusMenu Structure Boot PromFirmware TimeDevice Menu H42x-xx Module View Menu StructureUtilities Menu Port Status MenuBridge Menu Help MenuPort Menu Port Status DisplaysStatus Selecting a Port Status ViewLoad ErrorsMapping Speed Chassis Manager WindowType Port Status Color CodesChassis Manager Window To view the Chassis Manager window Viewing the Device TypeUpTime Viewing I/F Summary InformationIndex Sta DescriptionInterface Performance Statistics/Bar Graphs Raw CountsRate Address Viewing Interface DetailUnicast ErrorNon-Unicast DiscardedPackets Transmitted Transmit only Using the Find Source Address FeatureMaking Sense of Detail Statistics Configuring Ports Managing the ModuleConfiguring Standard Ethernet Ports Standard ModeFull Duplex Fast Ethernet Configuration Configuring Fast Ethernet PortsDesired Operational Mode Current Operational ModePort Type Link StateRemote Capabilities Advertised AbilitiesSetting the Desired Operational Mode 10. Edit Time Window Setting the Device Date and Time11. Edit Date Window Enabling and Disabling PortsTo enable or disable bridging for an individual interface 9H42x-xx Module View Managing the Module About Rmon Alarms and Events Alarm ConfigurationAlarm Configuration Basic Alarm ConfigurationRmon Basic Alarm Configuration Window Accessing the Basic Alarm Configuration WindowKilobits Total Errors Broadcasts/Multicasts Viewing Alarm StatusPort Number If NumberPolling Interval Log/TrapRising Threshold Rising ActionCreating and Editing a Basic Alarm Alarm Configuration Alarm Configuration Viewing the Basic Alarm Log Disabling a Basic AlarmAlarm Configuration Accessing the Rmon Advanced Alarm/Event List Advanced Alarm ConfigurationAlarm Configuration Such as the Hosts component, not present, or Rmon Create/Edit Alarms Window Creating and Editing an Advanced AlarmAlarm 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 Viewing an Advanced Alarm Event Log Deleting an Alarm, Event, or ActionHow Rising and Falling Thresholds Work Event Statistics Accessing the Statistics WindowsRmon Statistics Tot. ErrorsBytes ProblemsPackets Drop EventsFrame Size Bytes Packets Viewing Total, Delta, and Accumulated Statistics Printing Statistics Interface StatisticsInterface Statistics Window Unicast Bridging Basics BridgingMore on Transparent Bridging An Overview of Bridge ManagementBridge Status Window Spanning Tree State Bridge Address Interface TypeInterface Speed Enabling and Disabling Bridging Enabling and Disabling All Installed InterfacesEnabling and Disabling Individual Interfaces From the Bridge Status windowPerformance Graphs Bridge StatisticsForwarded Green Filtered Magenta Total Errors RedXmitted Blue Configuring the Bridge Performance GraphsAltering the Ageing Time Using Source AddressingBridge Spanning Tree Bridge Spanning Tree Window Viewing Spanning Tree ParametersBridge Priority Bridge-level ParametersRoot Bridge Root CostProtocol Forwarding DelayHello Time Max AgePort-specific Parameters Designated Port Changing Bridge Spanning Tree ParametersTopology Changing Bridge PriorityChanging Hello Time Changing the Spanning Tree Algorithm Protocol TypeChanging Max Age Time Changing Port Priority Changing Forwarding Delay TimeChanging Path Cost Dynamic, or Learned Filtering DatabaseFiltering Database Window Number ListCapacity Ageing TimeSource Port Configuring the Filtering DatabaseReceive Port Port FilteringChanging the Receive Port Changing the Type of EntryAdding or Deleting Individual Entries Changing the Port Filtering ActionClearing All Permanent, Static, or Dynamic Entries Configuring Duplex ModesTo access the Duplex Modes window Bridging Bridging Configuring Duplex Modes Numerics IndexIndex-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.
Top Page Image Contents