Cisco Systems BC-23 manual Setting the Bridge Priority, Setting an Interface Priority, BC-53

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Configuring Transparent Bridging

Transparent and SRT Bridging Configuration Task List

Note Only network administrators with a good understanding of how bridges and the Spanning-Tree Protocol work should make adjustments to spanning-tree parameters. Poorly planned adjustments to these parameters can have a negative impact on performance. A good source on bridging is the IEEE 802.1d specification; see the “References and Recommended Reading” appendix in the Cisco IOS Configuration Fundamentals Command Reference for other references.

Setting the Bridge Priority

You can globally configure the priority of an individual bridge when two bridges tie for position as the root bridge, or you can configure the likelihood that a bridge will be selected as the root bridge. This priority is determined by default; however, you can change it. To set the bridge priority, use the following command in global configuration mode:

Command

Purpose

 

 

bridge bridge-group priority number

Sets the bridge priority.

 

 

Setting an Interface Priority

You can set a priority for an interface. When two bridges tie for position as the root bridge, you configure an interface priority to break the tie. The bridge with the lowest interface value is elected. To set an interface priority, use the following command in interface configuration mode:

Command

Purpose

 

 

bridge-group bridge-grouppriority number

Establishes a priority for a specified interface.

 

 

Assigning Path Costs

Each interface has a path cost associated with it. By convention, the path cost is 1000/data rate of the attached LAN, in Mbps. You can set different path costs. Refer to the entry for this command in the Cisco IOS Bridging and IBM Networking Command Reference, Volume I for the various media defaults. To assign path costs, use the following command in interface configuration mode:

Command

Purpose

 

 

bridge-group bridge-grouppath-cost cost

Sets a path cost different from the defaults.

 

 

Adjusting BPDU Intervals

You can adjust BPDU intervals as described in the following sections:

•Adjusting the Interval between Hello BPDUs

•Defining the Forward Delay Interval

•Defining the Maximum Idle Interval

Cisco IOS Bridging and IBM Networking Configuration Guide

BC-53

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Contents BC-23 Transparent and SRT BridgingIntegrated Routing and Bridging Transparent Bridging FeaturesBC-24 BC-25 Bridge-Group Virtual InterfaceBridge-Group Virtual Interface in the Router BC-26Other Considerations SRT Bridging FeaturesBC-27 BC-28 Transparent and SRT Bridging Configuration Task ListBC-29 Configuring Transparent Bridging and SRT BridgingAssigning Each Network Interface to a Bridge Group As Ieee 802.1D standard, DEC or Vlan bridgeBC-30 Command PurposeTransparently Bridged VLANs for ISL Choosing the OUI for Ethernet Type II FramesTransparently Bridged VLANs on an Fddi Backbone BC-31BC-32 Routing between ISL VLANsBC-33 Specifies a subinterfaceSubinterface with the Vlan Same bridge groupBC-34 Configuring a Subscriber Bridge GroupConfiguring Transparent Bridging over WANs Configuring Fast-Switched Transparent Bridging over ATMSpecifying the Bridging Protocol Configuring Transparent Bridging over DDRCommand Defining the Protocols to BridgeFast-Switched Transparent Bridging Configuring Transparent Bridging over Frame RelayDetermining Access for Bridging Configuring an Interface for BridgingBC-37 Configuring Transparent Bridging over Multiprotocol LapbBridging in a Frame Relay Network with No Multicasts Bridging in a Frame Relay Network with MulticastsBC-38 Configuring Transparent Bridging over SmdsConfiguring Transparent Bridging over Specifies IP-to-X.121 mappingBC-39 Configuring Concurrent Routing and BridgingConfiguring Integrated Routing and Bridging Specifies a protocol to be routed on a bridge groupBC-40 Configuring InterfacesConfiguring the Bridge-Group Virtual Interface Enabling Integrated Routing and BridgingBC-41 Configuring Protocols for Routing or BridgingDisabling IP Routing Configuring Transparent Bridging OptionsBC-42 Enabling Autonomous Bridging Configuring LAT CompressionBC-43 Establishes a multiple spanning-tree domain Establishing Multiple Spanning-Tree DomainsBC-44 BC-45 Configuring Bridge Table Aging TimeFiltering Transparently Bridged Packets Forwarding Multicast AddressesBC-46 Setting Filters at the MAC LayerBC-47 Filters particular MAC-layer station addressesFiltering by Vendor Code Ethernet-ordered MAC addressType Filtering by Protocol TypeBC-48 BC-49 Defining and Applying Extended Access ListsConfiguration mode InterfaceBC-50 Enabling LAT Group Code Service Filtering Filtering LAT Service AnnouncementsBC-51 BC-52 Adjusting Spanning-Tree ParametersAssigning Path Costs Setting the Bridge PrioritySetting an Interface Priority Adjusting Bpdu IntervalsDefining the Maximum Idle Interval Adjusting the Interval between Hello BPDUsDefining the Forward Delay Interval Disabling the Spanning Tree on an InterfaceBC-55 BC-56 Configuring the PA-12E/2FE Port AdapterBC-57 Monitoring and Maintaining the PA-12E/2FE Port AdapterBC-58 BC-59 BC-60 Configuring Circuit GroupsBC-61 Configuring Constrained Multicast FloodingConfigures a transmission pause interval Distributes base load on the source MAC address onlyBC-62 BC-63 Basic Bridging ExampleBC-64 Concurrent Routing and Bridging ExampleBC-65 Basic Integrated Routing and Bridging ExampleBC-66 Complex Integrated Routing and Bridging ExampleBC-67 Transparently Bridged VLANs Configuration ExampleRouter Two Router OneBC-68 BC-69 Router ThreeEthernet-to-FDDI Transparent Bridging Example Routing between VLANs Configuration ExampleBC-70 Router/Bridge in Building Ethernet Bridging ExampleBC-71 BC-72 SRT Bridging ExampleBC-73 Configuration for the New York City RouterConfiguration for the Thule, Greenland Router Multicast or Broadcast Packets Bridging ExampleTransparent Bridging Example Configuration for BridgeBC-74 Bridging in a Frame Relay Network with No Multicasts Frame Relay Transparent Bridging ExamplesBC-75 Bridging in a Frame Relay Network with Multicasts Transparent Bridging over Multiprotocol Lapb ExampleBC-76 BC-77 Transparent Bridging over DDR ExamplesComplex Transparent Bridging Network Topology Example Fast-Switched Transparent Bridging over Smds ExampleBC-78 Bridged Subnetworks with Domains BC-79BC-80 Configuration for Router aBC-81 Configuration for Router BConfiguration for Router C Configuration for Router DATM Subscriber Ports, ATM Trunk Example Fast Ethernet Subscriber Port, Frame Relay Trunk ExampleBC-82 BC-83 BC-84 Configuration of IRB for PA-12E/2FE Port Adapter Example

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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