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Fat AP and Cloud AP V200R010C00 Command Reference

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max bandwidth-affected-linknumber

max bandwidth-affected-linknumber

Function

The max bandwidth-affected-linknumber command sets the upper threshold for the number of interfaces that determine the bandwidth of an Eth-Trunk.

The undo max bandwidth-affected-linknumber command restores the default upper threshold for the number of interfaces that determine the bandwidth of an Eth-Trunk.

By default, the upper threshold for the number of interfaces that determine the bandwidth of an Eth-Trunk is 8.

Format

max bandwidth-affected-linknumber link-number

undo max bandwidth-affected-linknumber

Parameters

Parameter

Description

Value

link-number

Specifies the upper threshold for the number of interfaces that determine the bandwidth of an Eth-Trunk.

The value is an integer ranging from 1 to 8.

Views

Eth-Trunk interface view

Default Level

2: Configuration level

Usage Guidelines

The upper threshold for the number of interfaces that determine the bandwidth of an Eth-Trunk is used for STP calculation.

For example, device A and device B are connected by two Eth-Trunks. Eth-Trunk1 has three member links that are Up; the Eth-Trunk2 has two member links that are Up. The bandwidth of each member link is 1 Gbit/s, so the bandwidth of Eth-Trunk1 is 3 Gbit/s and the bandwidth of Eth-Trunk2 is 2 Gbit/s. If device A is the root bridge during STP calculation, Eth-Trunk1 on device B is the root port and Eth-Trunk2 is the alternate port. You can run this command to set the upper threshold to 1. Then the bandwidth of Eth-Trunk1 becomes 1 Gbit/s during STP calculation. Bandwidth decrease affects the interface cost, causing STP recalculation. The max bandwidth-affected-linknumber command does not affect traffic forwarding on the Eth-Trunk. The bandwidth used to forward traffic is still 3 Gbit/s.

Example

# Set the upper threshold to 3.

<Huawei> system-view
[Huawei] interface eth-trunk 1
[Huawei-Eth-Trunk1] max bandwidth-affected-linknumber 3
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Updated: 2019-11-21

Document ID: EDOC1100064352

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