isis

Format

isis process-id [ vpn-instance vpn-instance-name ]

isis [ vpn-instance vpn-instance-name ]

undo isis process-id

Parameters

Parameter	Description	Value
process-id	Specifies the ID of an IS-IS process.	The value is an integer ranging from 1 to 4294967295. The default value is 1.
vpn-instance vpn-instance-name	Specifies the name of a VPN instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.

Parameter

Description

Value

process-id

Specifies the ID of an IS-IS process.

The value is an integer ranging from 1 to 4294967295. The default value is 1.

vpn-instance vpn-instance-name

Specifies the name of a VPN instance.

The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
isis	write

Usage Guidelines

Usage Scenario

To configure other functions and features of IS-IS or IS-IS interfaces, you need to enable IS-IS first. You can enter the IS-IS view after the isis command is run.

On a large-scale network, if a large number of devices run IS-IS, there will be a huge number of routes, increasing maintenance costs, slowing down route convergence, and affecting network stability. To resolve the problem, you can run the isis command to start multiple processes to reduce the number of routes to be maintained.

In addition, to ensure that different services are forwarded properly on the network, you can run the isis command to start multiple IS-IS processes on one device to isolate these services.

Follow-up Procedure

Run the network-entity command to set a NET for the device, and run the isis enable command to enable IS-IS on each interface that needs to run IS-IS. You can start IS-IS only when these configurations are completed.

Precautions

The undo isis command deletes all configurations of a specified IS-IS process. Exercise caution when running this command.

Example

# Start an IS-IS process 1 which has the system ID 0000.0000.0002 and the area ID 01.0001.

<HUAWEI> system-view
[~HUAWEI] isis 1
[*HUAWEI-isis-1] network-entity 01.0001.0000.0000.0002.00