Cisco Systems BC-23 manual Disabling the Spanning Tree on an Interface, BC-54

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Configuring Transparent Bridging

Transparent and SRT Bridging Configuration Task List

Note Each bridge in a spanning tree adopts the interval between hello BPDUs, the forward delay interval, and the maximum idle interval parameters of the root bridge, regardless of what its individual configuration might be.

Adjusting the Interval between Hello BPDUs

You can specify the interval between hello BPDUs. To adjust this interval, use the following command in global configuration mode:

Command

Purpose

 

 

bridge bridge-group hello-timeseconds

Specifies the interval between hello BPDUs.

 

 

Defining the Forward Delay Interval

The forward delay interval is the amount of time spent listening for topology change information after an interface has been activated for bridging and before forwarding actually begins. To change the default interval setting, use the following command in global configuration mode:

Command

Purpose

 

 

bridge bridge-groupforward-time seconds

Sets the default of the forward delay interval.

 

 

Defining the Maximum Idle Interval

If a bridge does not hear BPDUs from the root bridge within a specified interval, it assumes that the network has changed and recomputes the spanning-tree topology. To change the default interval setting, using the following command in global configuration mode:

Command

Purpose

 

 

bridge bridge-group max-ageseconds

Changes the amount of time a bridge will wait to hear BPDUs from

 

the root bridge.

 

 

Disabling the Spanning Tree on an Interface

When a loop-freepath exists between any two bridged subnetworks, you can prevent BPDUs generated in one transparent bridging subnetwork from impacting nodes in the other transparent bridging subnetwork, yet still permit bridging throughout the bridged network as a whole. For example, when transparently bridged LAN subnetworks are separated by a WAN, BPDUs can be prevented from traveling across the WAN link.

To disable the spanning tree on an interface, use the following command in interface configuration mode:

Command

Purpose

 

 

bridge-group bridge-groupspanning-disabled

Disables the spanning tree on an interface.

 

 

Cisco IOS Bridging and IBM Networking Configuration Guide

BC-54

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Contents Transparent and SRT Bridging BC-23BC-24 Transparent Bridging FeaturesIntegrated Routing and Bridging Bridge-Group Virtual Interface BC-25BC-26 Bridge-Group Virtual Interface in the RouterBC-27 SRT Bridging FeaturesOther Considerations Transparent and SRT Bridging Configuration Task List BC-28Configuring Transparent Bridging and SRT Bridging Assigning Each Network Interface to a Bridge GroupAs Ieee 802.1D standard, DEC or Vlan bridge BC-29Command Purpose Transparently Bridged VLANs for ISLChoosing the OUI for Ethernet Type II Frames BC-30BC-31 Transparently Bridged VLANs on an Fddi BackboneRouting between ISL VLANs BC-32Specifies a subinterface Subinterface with the VlanSame bridge group BC-33Configuring a Subscriber Bridge Group Configuring Transparent Bridging over WANsConfiguring Fast-Switched Transparent Bridging over ATM BC-34Configuring Transparent Bridging over DDR CommandDefining the Protocols to Bridge Specifying the Bridging ProtocolConfiguring Transparent Bridging over Frame Relay Determining Access for BridgingConfiguring an Interface for Bridging Fast-Switched Transparent BridgingConfiguring Transparent Bridging over Multiprotocol Lapb Bridging in a Frame Relay Network with No MulticastsBridging in a Frame Relay Network with Multicasts BC-37Configuring Transparent Bridging over Smds Configuring Transparent Bridging overSpecifies IP-to-X.121 mapping BC-38Configuring Concurrent Routing and Bridging Configuring Integrated Routing and BridgingSpecifies a protocol to be routed on a bridge group BC-39Configuring Interfaces Configuring the Bridge-Group Virtual InterfaceEnabling Integrated Routing and Bridging BC-40Configuring Protocols for Routing or Bridging BC-41BC-42 Configuring Transparent Bridging OptionsDisabling IP Routing BC-43 Configuring LAT CompressionEnabling Autonomous Bridging BC-44 Establishing Multiple Spanning-Tree DomainsEstablishes a multiple spanning-tree domain Configuring Bridge Table Aging Time Filtering Transparently Bridged PacketsForwarding Multicast Addresses BC-45Setting Filters at the MAC Layer BC-46Filters particular MAC-layer station addresses Filtering by Vendor CodeEthernet-ordered MAC address BC-47BC-48 Filtering by Protocol TypeType Defining and Applying Extended Access Lists Configuration modeInterface BC-49BC-50 BC-51 Filtering LAT Service AnnouncementsEnabling LAT Group Code Service Filtering Adjusting Spanning-Tree Parameters BC-52Setting the Bridge Priority Setting an Interface PriorityAdjusting Bpdu Intervals Assigning Path CostsAdjusting the Interval between Hello BPDUs Defining the Forward Delay IntervalDisabling the Spanning Tree on an Interface Defining the Maximum Idle IntervalBC-55 Configuring the PA-12E/2FE Port Adapter BC-56Monitoring and Maintaining the PA-12E/2FE Port Adapter BC-57BC-58 BC-59 Configuring Circuit Groups BC-60Configuring Constrained Multicast Flooding Configures a transmission pause intervalDistributes base load on the source MAC address only BC-61BC-62 Basic Bridging Example BC-63Concurrent Routing and Bridging Example BC-64Basic Integrated Routing and Bridging Example BC-65Complex Integrated Routing and Bridging Example BC-66Transparently Bridged VLANs Configuration Example BC-67BC-68 Router OneRouter Two Router Three BC-69BC-70 Routing between VLANs Configuration ExampleEthernet-to-FDDI Transparent Bridging Example BC-71 Ethernet Bridging ExampleRouter/Bridge in Building SRT Bridging Example BC-72Configuration for the New York City Router Configuration for the Thule, Greenland RouterMulticast or Broadcast Packets Bridging Example BC-73BC-74 Configuration for BridgeTransparent Bridging Example BC-75 Frame Relay Transparent Bridging ExamplesBridging in a Frame Relay Network with No Multicasts BC-76 Transparent Bridging over Multiprotocol Lapb ExampleBridging in a Frame Relay Network with Multicasts Transparent Bridging over DDR Examples BC-77BC-78 Fast-Switched Transparent Bridging over Smds ExampleComplex Transparent Bridging Network Topology Example BC-79 Bridged Subnetworks with DomainsConfiguration for Router a BC-80Configuration for Router B Configuration for Router CConfiguration for Router D BC-81BC-82 Fast Ethernet Subscriber Port, Frame Relay Trunk ExampleATM Subscriber Ports, ATM Trunk Example BC-83 Configuration of IRB for PA-12E/2FE Port Adapter Example BC-84

BC-23 specifications

Cisco Systems has long been a leader in the networking industry, and its BC-23 model exemplifies the company's commitment to innovation and performance. Aimed at enhancing business operations, the BC-23 is tailored for organizations looking for robust solutions that support their digital transformation efforts.

One of the standout features of the Cisco BC-23 is its advanced networking capabilities. It supports high-speed data transmission, enabling seamless communication across networks. With multi-gigabit Ethernet ports, the BC-23 facilitates faster data rates, accommodating the increasing bandwidth demands of modern applications. This feature is particularly beneficial for businesses that rely heavily on cloud services, video conferencing, and data-heavy applications.

Security is a top priority, and the Cisco BC-23 incorporates cutting-edge security measures. Integrated threat detection and prevention systems help safeguard sensitive data from cyber threats. Additionally, the device supports secure access protocols, ensuring that only authorized users can connect to the network. This multi-layered security approach not only protects the network infrastructure but also secures the integrity of the data being transmitted.

Another significant characteristic of the BC-23 is its support for software-defined networking (SDN). This technology allows businesses to manage their networks through centralized software applications, facilitating real-time adjustments and optimizations. The flexibility afforded by SDN is especially advantageous in dynamic environments where network demands can shift rapidly.

The Cisco BC-23 also offers enhanced management features, allowing IT teams to monitor network performance and analytics effectively. This visibility into network operations enables organizations to identify potential issues before they escalate, minimizing downtime and keeping business processes smooth.

Furthermore, the BC-23 is designed for scalability. As organizations grow, their networking needs evolve, and the BC-23 can easily adapt to these changes. Businesses can add additional devices and capabilities without the need for a complete overhaul of their existing infrastructure.

With its combination of speed, security, and scalability, the Cisco Systems BC-23 is an invaluable asset for modern businesses. It stands out not just as a networking device but as a comprehensive solution that meets the demands of today's fast-paced, technology-driven environment. As companies continue to leverage digital tools for growth and efficiency, the BC-23 will undoubtedly play a significant role in their success.
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