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Contents
1.1 Introduction....................................................................................................................................................................2
1.1.1 Overview of Reliability Technologies.........................................................................................................................2
1.1.2 Indices of Reliability...................................................................................................................................................2
1.1.3 Levels of Reliability Requirements.............................................................................................................................3
1.1.4 Principles for High-Reliablity IP Networking.............................................................................................................3
1.2 Reliability Technologies for IP Networks......................................................................................................................4
1.2.1 Failure Detection for IP Networks...............................................................................................................................4
1.2.2 Protection Switching for IP Networks.........................................................................................................................4
1.3 Reliability Technologies Supported by the NE80E/40E................................................................................................5
1.3.1 FRR (Fast ReRoute)....................................................................................................................................................5
1.3.2 OAM (Operation Administration & Maintenance).....................................................................................................7
1.3.3 VRRP...........................................................................................................................................................................7
1.3.4 BFD.............................................................................................................................................................................8
1.4 Networking of Reliability over an IP Network..............................................................................................................8
1.4.1 Failures on Intermediate Nodes or on the Link Between PEs - LDP FRR/TE FRR...................................................8
1.4.2 Link Failure During Transmission..............................................................................................................................9
1.4.3 Failure on the Remote PE - VPN FRR......................................................................................................................11
1.4.4 Failure of Downlink Interface on the PE - IP FRR...................................................................................................12
2.1 Introduction of Interface Backup..................................................................................................................................15
2.1.1 Interface Backup Overview.......................................................................................................................................15
2.1.2 Characteristics of the Interface Backup Supported by the NE80E/40E....................................................................16
2.2 Configuring the Active/Standby Interface Backup.......................................................................................................17
2.2.1 Before You Start........................................................................................................................................................17
2.2.2 Configuring a Standby Interface................................................................................................................................18
2.2.3 Configuring the Active/Standby Switchover Delay..................................................................................................19
2.2.4 Checking the Configurations.....................................................................................................................................19
2.3 Configuring the Load Balancing Interface Backup......................................................................................................20
2.3.1 Before You Start........................................................................................................................................................20
2.3.2 Configuring a Standby Interface................................................................................................................................21
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Contents
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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