How to configure HA in NetEngine 8000 M1A

Hi @AlSafy Thanks for great practical questions

Normally HA associated with Firewall setup, Routers work in Active-Standby using VRRP

The Virtual Router Redundancy Protocol (VRRP) is a fault-tolerant protocol running on routers. VRRP implements egress gateway backup and ensures communication continuity and reliability. (Link for reference https://support.huawei.com/enterprise/en/doc/EDOC1100055104/a5b057b1/overview-of-vrrp)

Example for Configuring a VRRP Group in Active/Standby Mode

https://support.huawei.com/enterprise/en/doc/EDOC1000079719/16ffb9d5/example-for-configuring-a-vrrp-group-in-active-standby-mode

Hi @ AlSafy,
You are advised to configure VRRP and dual-device backup. Generally, VRRP and dual-device backup work together. 

VRRP is a redundancy and fault tolerance protocol defined in related standards. It separates physical devices from logical devices to select routes between multiple egress gateways. After VRRP is configured, the master and backup routers on the physical network are virtualized as one router. The virtual router has a virtual IP address and a virtual MAC address. The host only senses the existence of the virtual router. The actual master and backup routers do not sense the existence of the virtual router. Hosts communicate with other devices on the non-local network segment through virtual routers.

A virtual router consists of a master router and several backup routers. The master router implements the forwarding function. When the master router fails, the master router is selected from the backup router through VRRP negotiation. The master router becomes the new master router to take over the work of the faulty router.

For more information on VRRP, you can refer to https://support.huawei.com/hedex/hdx.do?docid=EDOC1100168845&id=EN-US_CONCEPT_0172351607&lang=en

Dual-device backup enables the system to back up user service control data on the active device to the standby device in real-time when active/standby protocols such as VRRP are deployed. If the active device or link fails, user services can be quickly switched to the standby device. When the active device or link recovers, user services can be switched back from the standby device to the active device, ensuring uninterrupted user services.

For more information of Dual-device backup, you can refer to https://support.huawei.com/hedex/hdx.do?docid=EDOC1100168845&id=EN-US_CONCEPT_0172351829&lang=en

For the configuration, you can refer to https://support.huawei.com/hedex/hdx.do?docid=EDOC1100168845&id=EN-US_TASK_0172362259&lang=en
I hope it helps!