display isis mesh-group

Function

The display isis mesh-group command displays the configuration of the IS-IS mesh-group.

Format

display isis process-id mesh-group

display isis mesh-group [ process-id | vpn-instance vpn-instance-name ]

Parameters

Parameter	Description	Value
process-id	Specifies an IS-IS process ID.	The value is an integer ranging from 1 to 4294967295.
vpn-instance vpn-instance-name	Displays mesh-group information about a specified 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 an IS-IS process ID.

The value is an integer ranging from 1 to 4294967295.

vpn-instance vpn-instance-name

Displays mesh-group information about a specified 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

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
isis	read

Usage Guidelines

Usage Scenario

When an interface that does not belong to an IS-IS mesh-group receives an LSP, the interface sends the LSP to all the other interfaces. On an NBMA network with multiple connections and P2P links, the same LSP will flood the network and consume bandwidth.

After an interface joins a mesh-group, the interface sends the received LSP only to interfaces that do not belong to the mesh-group and the interface does not send the same LSP back. Therefore, LSP flooding is avoided, link pressure is reduced, and network resources are saved.

The display isis mesh-group command is used to check the mesh-group to which an interface belongs so that the LSP-flooding area can be identified.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display the IS-IS mesh-group.

<HUAWEI> display isis mesh-group
Mesh Group information for ISIS(1)
--------------------------------------
Interface                       Status
GE0/1/0                         100
GE0/1/8                         100

**Table 1** Description of the **display isis mesh-group** command output
Item	Description
Interface	Type and number of an interface in the mesh-group.
Status	Mesh-group number.