isis ipv6 ti-lfa disable

Function

The isis ipv6 ti-lfa disable command disables TI-LFA on an IPv6 IS-IS interface.

The undo isis ipv6 ti-lfa disable command enables TI-LFA on an IPv6 IS-IS interface.

By default, IPv6 TI-LFA is enabled automatically on IS-IS interfaces if the ti-lfa command is run in the IS-IS IPv6-FRR view.

Format

isis ipv6 ti-lfa disable [ level-1 | level-2 | level-1-2 ]

undo isis ipv6 ti-lfa disable [ level-1 | level-2 | level-1-2 ]

Parameters

Parameter	Description	Value
level-1	Disables TI-LFA on IPv6 IS-IS Level-1 interfaces.	-
level-2	Disables TI-LFA on IPv6 IS-IS Level-2 interfaces.	-
level-1-2	Disables TI-LFA on IPv6 IS-IS interfaces of all levels. If no level is specified in the command, TI-LFA is disabled for IS-IS interfaces of all levels by default.	-

Parameter

Description

Value

level-1

Disables TI-LFA on IPv6 IS-IS Level-1 interfaces.

level-2

Disables TI-LFA on IPv6 IS-IS Level-2 interfaces.

level-1-2

Disables TI-LFA on IPv6 IS-IS interfaces of all levels.

If no level is specified in the command, TI-LFA is disabled for IS-IS interfaces of all levels by default.

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

After the ti-lfa command is run in the IS-IS IPv6 FRR view, TI-LFA is automatically enabled on all IPv6 IS-IS interfaces. To disable TI-LFA on some interfaces, run the isis ipv6 ti-lfa disable command in the interface view.

Precautions

If the ti-lfa command is not run, the isis ipv6 ti-lfa disable command can be run, but does not take effect on interfaces.

If you run the ti-lfa command after running the isis ipv6 ti-lfa disable command, the isis ipv6 ti-lfa disable command still takes effect.

If an interface is bound to a VPN instance, it does not support TI-LFA.

Example

# Disable TI-LFA on an IPv6 IS-IS Level-1 interface.

<HUAWEI> system-view
[~HUAWEI] isis 1
[*HUAWEI-isis-1] ipv6 enable
[*HUAWEI-isis-1] cost-style wide
[*HUAWEI-isis-1] ipv6 frr
[*HUAWEI-isis-1-ipv6-frr] loop-free-alternate level-2
[*HUAWEI-isis-1-ipv6-frr] ti-lfa level-2
[*HUAWEI-isis-1-ipv6-frr] 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] isis ipv6 ti-lfa disable level-1