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Configuration Guide - Reliability
S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.

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Principles for High-Reliablity IP Networking

Principles for High-Reliablity IP Networking

Technologies for reliable networking cover the hierarchy networking, redundancy technology, and load balancing technology.

  • Hierarchical networking: A network is divided into three layers, core layer, convergence layer, and edge layer. According to the current service status and future service prediction, redundancy backup is required on a device connected to access nodes on the edge layer. The active and standby nodes connect to convergence nodes. Devices of convergence layer are dual-homed to single node multi-device of the upper layer or to multi-node device of convergence layer and core layer alternatively. Devices of core layer are enabled with full interconnection or half interconnection. In this manner, two devices are reachable to each other with one route at a fast traffic rate, avoiding multi-interconnection.

  • On the same layer, multi-interconnection is recommended; multi-device is applicable to a single node.

  • The lower-layer devices are dual-homed or multi-homed to single nodes or multiple nodes of devices on the upper layer.

  • Adjustment should be taken according to traffic.

Updated: 2019-12-28

Document ID: EDOC1000141941

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