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NE40E-M2 V800R010C10SPC500 Feature Description - User Access 01

This is NE40E-M2 V800R010C10SPC500 Feature Description - User Access
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Typical Application of User Access Multi-Device Backup

Typical Application of User Access Multi-Device Backup

Multi-device backup supports two types of access topologies: direct dual-homing access through aggregation switches and dual-homing access through the ring network (semi-ring) formed by aggregation switches.

Direct Dual-Homing Access Through Aggregation Switches

As shown in Figure 9-11, each aggregation switch is dual-homed to the master and slave NE40Es. VRRP is deployed on the access side. One VRRP protection group is deployed for each pair of active and standby links.

Figure 9-11 Dual-homing access through aggregation switches

Dual-Homing Access Through the Ring Network (Semi-ring) Formed by Aggregation Switches

In the case of ring-based access, the NE40E is not on the ring, and the access switch accesses the NE40E through the aggregation switch. As shown in Figure 9-12, one VRRP group is deployed across two aggregation switches. The VRRP group determines the active/standby status of each access link. If the VRRP group is in the master state, the access link can be accessed by users. If the VRRP group is in the Slave state, the access link cannot be accessed by users.

Figure 9-12 Dual-homing access through the ring network (semi-ring) formed by aggregation switches

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Updated: 2019-01-02

Document ID: EDOC1100058415

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