mpls te bandwidth dynamic (Interface view)

Function

The mpls te bandwidth dynamic command sets the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth on an MPLS TE interface.

By default, the proportion of the BC0 dynamic reservable bandwidth to the maximum reservable bandwidth is not set on an MPLS TE interface.

Format

mpls te bandwidth dynamic bc0 bc0-bw-percentage

Parameters

Parameter	Description	Value
bc0 bc0-bw-percentage	Specifies the BC0 dynamic bandwidth (%).	The value is a percent integer ranging from 1 to 100.

Parameter

Description

Value

bc0 bc0-bw-percentage

Specifies the BC0 dynamic bandwidth (%).

The value is a percent integer ranging from 1 to 100.

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

A reservable bandwidth value is set on each interface along an MPLS TE tunnel. The MPLS TE module checks whether links meets the bandwidth requirements of all tunnels based on the reservable bandwidth. If a fixed bandwidth value is set on an interface and the physical bandwidth changes on the interface, the MPLS TE module cannot correctly evaluate link bandwidth resources because the available bandwidth may be different than the configured reservable bandwidth.

To remain the reserved bandwidth within the reservable bandwidth range, run the mpls te bandwidth max-reservable-bandwidth dynamic to set the maximum reservable bandwidth on the interface and run the mpls te bandwidth dynamic command to set the BC0 dynamic bandwidth. The former is the proportion (percentage) of the maximum reservable bandwidth to the physical bandwidth. The later is the proportion (percentage) of BC0 bandwidth to the maximum reservable bandwidth. The two parameters help the interface dynamically reserve bandwidth for an MPLS TE tunnel.

To specify the proportion of the BC0 dynamic bandwidth to the maximum reservable bandwidth, run the mpls te bandwidth dynamic command on a specific MPLS TE interface.

Prerequisites

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

Run the mpls te bandwidth max-reservable-bandwidth command to set the maximum reservable bandwidth for MPLS TE links.
Run the mpls te bandwidth max-reservable-bandwidth dynamic command to set the dynamic maximum reservable bandwidth for MPLS TE links.

Configuration Impact

When both the mpls te bandwidth dynamic command and the mpls te bandwidth command are run in a random order on an interface, the last executed command takes effect.

Example

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

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