Bridge Spanning Tree configuration

Spanning tree bridge parameters can be configured for each Spanning Tree Group. STP bridge parameters include:

•Bridge priority

•Bridge hello time

•Bridge maximum age

•Forwarding delay

•Current bridge configuration

The following table describes the Bridge Spanning Tree Configuration commands.

Table 84 Bridge Spanning Tree Configuration commands

Command

Description

spanning-tree stp {<1-32>}

Configures the bridge priority. The bridge priority parameter controls

bridge priority {<0-65535>}

which bridge on the network is the STP root bridge.

 

To make this switch the root bridge, configure the bridge priority lower

 

than all other switches and bridges on your network. The lower the value,

 

the higher the bridge priority. The range is 0 to 65535, and the default is

 

32768.

 

RSTP/MSTP: The range is 0 to 61440, in steps of 4096 (0, 4096,

 

8192...), and the default is 32768.

 

This command does not apply to MSTP. See the “Common Internal

 

Spanning Tree configuration” section for more information.

 

Command mode: Global configuration

spanning-tree stp {<1-32>} bridge hello-time {<1-10>}

Configures the bridge hello time. The hello time specifies how often the root bridge transmits a configuration bridge protocol data unit (BPDU).

Any bridge that is not the root bridge uses the root bridge hello value. The range is 1 to 10 seconds, and the default is 2 seconds.

This command does not apply to MSTP. See the “Common Internal Spanning Tree configuration” section for more information. Command mode: Global configuration

spanning-tree stp {<1-32>} bridge maximum-age {<6-40>}

Configures the bridge maximum age. The maximum age parameter specifies the maximum time the bridge waits without receiving a configuration bridge protocol data unit before it reconfigures the STP network. The range is 6 to 40 seconds, and the default is 20 seconds.

This command does not apply to MSTP. See the “Common Internal Spanning Tree configuration” section for more information. Command mode: Global configuration

spanning-tree stp {<1-32>} bridge forward-delay {<4-30>}

Configures the bridge forward delay parameter. The forward delay parameter specifies the amount of time that a bridge port has to wait before it changes from the listening state to the learning state and from the learning state to the forwarding state. The range is 4 to 30 seconds, and the default is 15 seconds.

This command does not apply to MSTP. See the “Common Internal Spanning Tree configuration” section for more information. Command mode: Global configuration

show spanning-tree stp {<1-32>}

Displays the current bridge STP parameters.

bridge

Command mode: All

When configuring STP bridge parameters, the following formulas must be used:

•2*(fwd-1)> mxage

•2*(hello+1) < mxage

Configuration Commands 79

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NEC N8406-022 manual Bridge Spanning Tree configuration
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N8406-022 specifications

The NEC N8406-022 is a robust and versatile networking device designed primarily for organizations requiring high-performance connectivity solutions. As part of NEC's extensive portfolio of networking equipment, the N8406-022 is engineered to address the demands of modern enterprise environments, ensuring seamless communication and data processing capabilities.

One of the key features of the N8406-022 is its multi-layer switching functionality. This device supports Layer 2 and Layer 3 switching, allowing for efficient data routing and reducing latency within local area networks (LANs). This capability is particularly beneficial for businesses that rely on real-time data access and transfer, such as those in financial services, media, and telecommunications.

The N8406-022 is equipped with advanced Quality of Service (QoS) features that help prioritize critical network traffic. This means that voice and video data packets can be given precedence over less time-sensitive information, ensuring that essential communication remains clear and uninterrupted. This is crucial for organizations leveraging VoIP and video conferencing solutions.

In terms of connectivity, the NEC N8406-022 offers a variety of ports, including multiple Gigabit Ethernet ports, which facilitate high-speed data transfer and enable seamless integration into existing network infrastructures. The device may also include 10 Gigabit SFP+ ports, providing the flexibility for high-capacity uplinks to support bandwidth-intensive applications and storage solutions.

Security is another focal point of the NEC N8406-022, with integrated features such as VLAN support, access control lists (ACLs), and port security measures. These capabilities protect sensitive data from unauthorized access and ensure that only legitimate users and devices can connect to the network.

Moreover, the N8406-022 often incorporates advanced energy-efficient technologies that minimize power consumption without compromising performance. This not only contributes to operational cost savings but also supports organizations in their sustainability efforts.

With its combination of performance, security, and energy efficiency, the NEC N8406-022 stands out as a reliable networking solution suitable for a wide range of enterprises looking to enhance their connectivity and operational efficiency. Whether deployed in data centers or as part of a corporate network, this device is built to meet the evolving demands of today’s digital landscape.
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