te bandwidth dynamic (Interface view)

Function

The te bandwidth dynamic command sets the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth.

By default, the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth is not set.

Format

te bandwidth dynamic bc0 bc0-bw-percentage

Parameters

Parameter	Description	Value
bc0 bc0-bw-percentage	Specifies the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth.	The value is an integer ranging from 1 to 100, in percentage.

Parameter

Description

Value

bc0 bc0-bw-percentage

Specifies the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth.

The value is an integer ranging from 1 to 100, in percentage.

Views

100ge sub-interface view, 100GE interface view, 10GE sub-interface view, 10GE interface view, 25GE sub-interface view, 25GE interface view, 400GE sub-interface view, 400GE interface view, 40GE sub-interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk sub-interface view, Eth-Trunk interface view, GE optical interface view, GE sub-interface view, GE electrical interface view, GMPLS-UNI interface view, Tunnel interface view, XGE sub-interface view, XGE interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

The reservable bandwidth values set on the interfaces along a TE tunnel are used by the TE module to check whether a link meets all bandwidth requirements. If a fixed bandwidth value is set on an interface and the available physical bandwidth changes on the interface, the TE module cannot correctly evaluate link bandwidth resources if the available bandwidth is different than the configured reservable bandwidth.

To address this issue, you can set the dynamic maximum reservable bandwidth and the BC0 dynamic reservable bandwidth. The maximum reservable bandwidth can be determined by setting the proportion of the maximum reservable bandwidth to the actual physical bandwidth. The BC0 dynamic reservable bandwidth can be determined by setting the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth. In this manner, the TE module can be aware of physical bandwidth changes on the interfaces along a tunnel.

To set the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth, run the te bandwidth dynamic command.

Prerequisites

Either of the following steps must be performed before you run the te bandwidth dynamic command:

Run the te bandwidth max-reservable-bandwidth command to set the maximum reservable bandwidth.
Run the te bandwidth max-reservable-bandwidth dynamic command to set the dynamic maximum reservable bandwidth.

Configuration Impact

When both the te bandwidth dynamic command and the te bandwidth command are run in the same interface view, only the later executed command takes effect.

Precautions

MPLS TE-related commands apply only to MPLS TE and SR-MPLS TE. However, this command applies to SRv6 TE Policies, besides MPLS TE and SR-MPLS TE.

Example

# Set the proportion of the maximum reservable bandwidth to the physical bandwidth to 80% and the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth to 60% on GE 0/1/0.

<HUAWEI> system-view
[~HUAWEI] te attribute enable
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] te bandwidth max-reservable-bandwidth dynamic 80
[*HUAWEI-GigabitEthernet0/1/0] te bandwidth dynamic bc0 60