isis ipv6 bfd enable

Function

The isis ipv6 bfd enable command enables IPv6 BFD for IS-IS on the IS-IS interface and uses the default parameters to establish an IPv6 BFD session.

The undo isis ipv6 bfd enable command disables IPv6 BFD for IS-IS on the IS-IS interface.

By default, if IPv6 BFD for IS-IS is enabled in the IS-IS view, the IS-IS interface is also enabled with IPv6 BFD for IS-IS. If IPv6 BFD for IS-IS is not enabled in the IS-IS view, the IS-IS interface is not enabled with IPv6 BFD for IS-IS either.

Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.

Format

isis ipv6 bfd enable

undo isis ipv6 bfd enable

Parameters

None

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

IPv6 BFD for IS-IS can provide millisecond level fault detection, help IS-IS to detect faults on neighboring devices or links rapidly, and instruct IS-IS to recalculate routes for correct packet forwarding. The isis ipv6 bfd enable command can be used to enable IPv6 BFD for IS-IS on a specified IS-IS interface.

If IPv6 BFD for IS-IS is not enabled globally, you can run the isis ipv6 bfd enable command on an interface to enable IPv6 BFD for IS-IS on this interface.

Prerequisites

To make the isis ipv6 bfd enable command take effect, do as follows:

Enable IPv6 globally in the system view by using the ipv6 command.
Enable an IS-IS process by using the isis command.
Enable IPv6 capability of the IS-IS process by using the ipv6 enable command in the IS-IS view.
On each interface that runs an IS-IS process, enable IPv6 capability by using the ipv6 enable command.
Enable IS-IS on each interface by using the isis ipv6 enable command.

Example

# Enable IPv6 BFD on Vlanif10.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] isis
[HUAWEI-isis-1] ipv6 enable
[HUAWEI-isis-1] quit
[HUAWEI] interface vlanif10
[HUAWEI-Vlanif10] ipv6 enable
[HUAWEI-Vlanif10] isis ipv6 enable
[HUAWEI-Vlanif10] isis ipv6 bfd enable