traffic-eng

Function

The traffic-eng command enables TE on a specified level for an IS-IS process.

The undo traffic-eng command restores the default settings.

This command varies in transport and router modes. For detailed differences, see Differences Between Commands in Transport and Router Modes. This topic describes the command configuration in router mode.

By default, TE is disabled for an IS-IS process.

Format

traffic-eng [ level-1 | level-2 | level-1-2 ]

undo traffic-eng [ level-1 | level-2 | level-1-2 ]

Parameters

Parameter	Description	Value
level-1	Enables IS-IS TE for a Level-1 area.	-
level-2	Enables IS-IS TE for a Level-2 area.	-
level-1-2	Enables IS-IS TE for Level-1 and Level-2 areas.	-

Parameter

Description

Value

level-1

Enables IS-IS TE for a Level-1 area.

level-2

Enables IS-IS TE for a Level-2 area.

level-1-2

Enables IS-IS TE for Level-1 and Level-2 areas.

Views

IS-IS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
isis	write

Usage Guidelines

Usage Scenario

Before you enable TE for an IS-IS process, use the cost-style command in IS-IS view to set the cost type of IS-IS packets to wide, compatible, or wide-compatible.

Prerequisites

After TE is enabled for an IS-IS process, IS-IS sends LSP change information to TE every 3 seconds. As a result, TE data may be updated slowly. To address this issue, run the mpls te tedb fast-notice command. After this configuration, IS-IS immediately sends LSP change information to TE for the first ten times, and then sends LSP change information to TE every 3 seconds.

Precautions

To enable TE for Level-2 in a VPN scenario, configure the VPN instance IPv4 address family first.

Example

# Enable TE on level-2 for IS-IS process 1.

<HUAWEI> system-view
[~HUAWEI] isis 1
[*HUAWEI-isis-1] cost-style compatible
[*HUAWEI-isis-1] traffic-eng level-2