Configuring Transparent Bridging

Transparent and SRT Bridging Configuration Task List

Note When a bridge group contains Token Ring interfaces, the Token Ring packets must not include RIF. The IEEE 802.1d transparent bridge standard specifies that frames with source routing information are to be dropped by transparent bridges; therefore, if Token Ring traffic includes RIF, it will be dropped. RIF is designated by the RII, which is the first bit of the MAC address. RII=1 indicates that the packet comes with RIF, RII=0 indicates that the frame does not come with RIF.

For example, to bridge AppleTalk, bridge and route IPX, and route IP in the same bridge group, you would do the following:

Bridge AppleTalk—Because integrated routing and bridging bridges everything by default, no configuration is required to bridge AppleTalk.

Bridge and route IPX—After using the bridge irb command to enable integrated routing and bridging, and the interface bvi command to create the bridge-group virtual interface for the bridge group, you would use the bridge route command to both bridge and route IPX (bridging is already enabled by default; the bridge route command enables routing).

Route IP—Use the bridge route command to enable routing, and then use the no bridge bridge command to disable bridging.

Note When integrated routing and bridging is not enabled, routing a given protocol means that protocol is not bridged, and bridging a protocol means that protocol is not routed. When integrated routing and bridging is enabled, the disjunct relationship between routing and bridging is broken down, and a given protocol can be switched between routed and bridged interfaces on a selective, independent basis.

Configuring Transparent Bridging Options

You can configure one or more transparent bridging options. To configure transparent bridging options, perform one or more of the tasks in the following sections:

Disabling IP Routing, page 42

Enabling Autonomous Bridging, page 43

Configuring LAT Compression, page 43

Establishing Multiple Spanning-Tree Domains, page 44

Preventing the Forwarding of Dynamically Determined Stations, page 45

Forwarding Multicast Addresses, page 45

Configuring Bridge Table Aging Time, page 45

Disabling IP Routing

If you want to bridge IP, you must disable IP routing because IP routing is enabled by default on the Cisco IOS software. You can enable IP routing when you decide to route IP packets. To disable or enable IP routing, use one of the following commands in global configuration mode:

Cisco IOS Bridging and IBM Networking Configuration Guide

BC-42

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Cisco Systems BC-23 manual Configuring Transparent Bridging Options, Disabling IP Routing, BC-42

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.