Optional) Disabling An Interface From Being Involved In Ipv4 Lfa Calculation - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
For detailed information about IS-IS Auto FRR, refer to the HUAWEI NetEngine80E/40E
Router Feature Description - IP Routing.
----End
7.11.3 (Optional) Disabling an Interface from Being Involved in
IPv4 LFA Calculation
To facilitate network management and fault location, you can prevent certain interfaces from
participating in the LFA calculation and specify the interfaces that can function as backup
outbound interfaces.
Context
Perform the following steps on the IS-IS interface to be disabled from participating in the Loop-
Free Alternate (LFA) calculation:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
undo isis lfa-backup [ level-1 | level-2 | level-1-2 ]
The interface is disabled from participating in the LFA calculation.
----End
7.11.4 Checking the Configurations
After configuring IS-IS Auto FRR, you can check the IS-IS backup route and traffic protection
type.
Prerequisites
All IS-IS Auto FRR configurations are complete.
Issue 02 (2014-09-30)
NOTE
For detailed information about IS-IS Auto FRR, refer to the HUAWEI NetEngine80E/40E Router Feature
Description - IP Routing.
IS-IS can create the loop-free backup route only if the interface cost is in compliance with the traffic
protection inequality of IS-IS Auto FRR.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7 IS-IS Configuration
569