network-entity

Function

The network-entity command configures a Network Entity Title (NET) for an IS-IS process.

The undo network-entity command deletes the NET configured for an IS-IS process.

By default, no NET is configured.

Format

network-entity net-addr

undo network-entity net-addr

Parameters

Parameter Description Value
net-addr

Specifies a NET.

The value is in the X...X.XXXX. XXXX.XXXX.00 format, in which the first "X...X" is the area address, the twelve Xs in the middle is the System ID of the device, and the 00 in the end is NSAP Selector (SEL).

Views

IS-IS view

Default Level

2: Configuration level

Task Name and Operations

Task Name Operations
isis write

Usage Guidelines

Usage Scenario

NET is the special form of the network service access point (NSAP). IS-IS starts only when the NET is configured for the IS-IS process.

NET consists of the following parts:

  • Area ID, which is variable (1 to 13 bytes). The area IDs of the routers in the same area are identical.
  • System ID (6 bytes) of this router. The system ID must be unique in the whole area and backbone area.
  • Last byte (SEL), with value 00.

    In general, an IS-IS process is configured with only one NET. When you want to redefine an area, to combine it with other areas or divide it into sub-areas for example, you can configure the router with multiple NETs to ensure the correctness of routes.

Prerequisites

An IS-IS process has been created and the IS-IS view has been displayed using the isis command.

Precautions

An area ID is used to uniquely identify an area in the same IS-IS domain. All devices in the same Level-1 area must share the same area ID, and devices in the same Level-2 area can have different area IDs.

The system ID must be unique in the whole area and backbone area.

When configuring multiple NETs, ensure that they share the same system ID.

If the undo network-entity command is run, configurations related to the NET are deleted, which may cause some IS-IS functions to fail to take effect. Therefore, exercise caution when using the command.

A maximum of three Network Entity Titles (NETs) can be configured for an IS-IS process.

If different devices in the same IS-IS domain are configured with the same NET, a conflict may occur. Although the system automatically resolves the conflict, problems may occur, for example, service functions may fail. Therefore, it is not recommended that devices in the same IS-IS domain be configured with different NETs.

Example

# Set the NET to 10.0001.1010.1020.1030.00, in which the system ID is 1010.1020.1030 and area ID is 10.0001.
<HUAWEI> system-view
[~HUAWEI] isis 1
[*HUAWEI-isis-1] network-entity 10.0001.1010.1020.1030.00
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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