Chapter 2 Configuring Spanning-Tree Bridging for the CSS

Configuring Spanning-Tree Bridge Priority

To set the bridge maximum age to 21, enter:

(config)# bridge max-age 21

To restore the default maximum age of 6, enter:

(config)# no bridge max-age

Configuring Spanning-Tree Bridge Priority

In spanning tree, the 2-octet field is prepended to the 6-octet MAC address to form an 8-octet bridge identifier. The device with the lowest bridge identifier is considered the highest priority bridge and becomes the root bridge. By default, the bridge priority is set to 32768. Use the bridge priority command to set the priority that the bridge spanning tree uses to choose the root bridge in the network. The range for bridge priority is 0 to 65535.

For example:

(config)# bridge priority 1700

To restore the bridge priority to the default of 32768, enter:

(config)# no bridge priority

Disabling Bridge Spanning-Tree

Spanning-tree bridging is enabled by default. When you disable spanning-tree bridging, the CSS drops those bridge protocol data units (BPDUs) that it recognizes as BPDUs, but forwards the Cisco Systems 802.1Q BPDUs (tagged with the proprietary 01-00-0c-cc-cc-cc-cd destination MAC address) on an 802.1Q VLAN trunk. The CSS can still operate in an 802.1Q spanning-tree environment as long as you do not require that the CSS put any of its ports into a blocking state.

Caution Disabling spanning-tree bridging may make your network susceptible to packet storms.

 

 

Cisco Content Services Switch Routing and Bridging Configuration Guide

 

 

 

 

 

 

OL-8241-02

 

 

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Cisco Systems OL-8241-02 manual Configuring Spanning-Tree Bridge Priority, Disabling Bridge Spanning-Tree
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OL-8241-02 specifications

Cisco Systems OL-8241-02 is a significant component of Cisco's extensive portfolio, catering specifically to the needs of enterprise-level networking. This module is designed to provide advanced routing capabilities, aiding organizations in achieving robust connectivity and efficient data transmission across their networks. It is particularly popular among businesses that require reliable performance and scalability.

One of the main features of the OL-8241-02 module is its support for multiple protocols, including OSPF, EIGRP, and BGP, which allows for seamless integration into various network configurations. This flexibility ensures that organizations can adapt to evolving networking demands without undergoing complete infrastructure overhauls. Furthermore, the module includes advanced security features, such as IPsec VPN support and integrated firewall capabilities, enhancing overall network security and protecting sensitive data from potential threats.

Another noteworthy characteristic of the OL-8241-02 is its exceptional performance metrics. With high throughput rates and low latency, the module can handle significant amounts of data traffic without compromising on speed. This efficiency is particularly critical for businesses that rely heavily on real-time data applications, such as video conferencing and online collaboration tools.

The OL-8241-02 also incorporates cutting-edge technologies like Quality of Service (QoS), which prioritizes network traffic based on application requirements. This feature is essential for ensuring that critical applications receive the bandwidth they need, while less critical tasks can be deprioritized during peak usage times. Additionally, the module supports IPv6, which is vital for organizations looking to future-proof their network infrastructure amid the global transition from IPv4.

The ease of management is another highlight of the OL-8241-02, with user-friendly interfaces and compatibility with Cisco's robust management software. This capability allows IT teams to monitor performance metrics, troubleshoot issues, and configure settings with minimal complexity.

In summary, the Cisco Systems OL-8241-02 module stands out for its versatility, performance, and security features. Equipped with the ability to support various protocols, advanced security measures, and efficient traffic management, it proves to be a reliable choice for enterprises aiming to enhance their networking capabilities and ensure seamless operational continuity.
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