isis ipv6 topology

Function

The isis ipv6 topology command associates an IPv6 IS-IS interface with an IPv6 IS-IS topology instance.

The undo isis ipv6 topology command dissociates an IPv6 IS-IS interface from an IPv6 IS-IS topology instance.

By default, an IPv6 IS-IS interface is associated with an IPv6 base topology.

Format

isis ipv6 topology topology-name

undo isis ipv6 topology topology-name

Parameters

Parameter	Description	Value
topology-name	Specifies the name of a topology instance.	The value is a string of 1 to 31 case-sensitive characters without spaces. The value must start with a letter (a to z or A to Z, case sensitive) and can contain numbers, hyphens (-), or underlines (_). When double quotation marks are used around the string, spaces are allowed in the string.

Parameter

Description

Value

topology-name

Specifies the name of a topology instance.

The value is a string of 1 to 31 case-sensitive characters without spaces. The value must start with a letter (a to z or A to Z, case sensitive) and can contain numbers, hyphens (-), or underlines (_). When double quotation marks are used around the string, spaces are allowed in the string.

Views

100GE interface view, 10GE interface view, 25GE sub-interface view, 25GE interface view, 400GE interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk interface view, FlexE interface view, GE optical interface view, GE electrical interface view, Global VE sub-interface view, Loopback interface view, Tunnel interface view, VBDIF interface view, VE sub-interface view, VE interface view, VLANIF interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
isis	write

Usage Guidelines

Usage Scenario

IS-IS multi-topology enables multiple independent logical topologies to be deployed in an IS-IS AS. The isis ipv6 topology command is used to associate an IS-IS interface with a topology specified by topology-name.

An interface can be associated with multiple IPv6 topologies. To associate an interface with multiple IPv6 topologies, you need to run the isis ipv6 topology command repeatedly, and specify the names for the topologies by setting topology-name in the command.

Prerequisites

An IPv6 topology has been enabled globally, an IPv6 topology instance has been associated with an IS-IS instance using the ipv6 topology command, and IPv6 IS-IS has been enabled on a specified interface.

Precautions

If an interface has been bound to a VPN, multi-topology cannot be enabled on the interface.

Example

# Associate GigabitEthernet 0/1/0 with the IPv6 topology instance named red.

<HUAWEI> system-view
[~HUAWEI] ipv6 topology red
[*HUAWEI] isis 1
[*HUAWEI-isis-1] cost-style wide
[*HUAWEI-isis-1] ipv6 enable
[*HUAWEI-isis-1] ipv6 topology red topology-id 10
[*HUAWEI-isis-1-ipv6-topology-red] quit
[*HUAWEI-isis-1] quit
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] ipv6 enable
[*HUAWEI-GigabitEthernet0/1/0] isis ipv6 enable 1
[*HUAWEI-GigabitEthernet0/1/0] ipv6 topology red enable
[*HUAWEI-GigabitEthernet0/1/0] isis ipv6 topology red