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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.

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Bandwidth Expansion and Inter-Chassis Link Redundancy

As shown in Figure 8-22, when higher uplink bandwidth is required, you can connect a new member switch to the original one using cluster cables so that the two switches set up a CSS. Then bundle physical links of the member switches into a link aggregation group to increase the uplink bandwidth.

Downstream switches connect to the CSS through inter-chassis Eth-Trunks. This networking implements redundancy between devices and links, enhancing network reliability.

Figure 8-22  Bandwidth expansion and inter-chassis link redundancy

Simplifying Network Topology

As shown in Figure 8-23, two switches are virtualized into a single logical switch. This simplified network does not require Multiple Spanning Tree Protocol (MSTP) or Virtual Router Redundancy Protocol (VRRP), so network configuration is much simpler. Inter-chassis link aggregation also speeds up network convergence and improves network reliability.

Figure 8-23  Simplifying network topology

Long-Distance Clustering

Long-distance clustering enables switches far from each other to form a CSS. As shown in Figure 8-24, users on each floor of two buildings connect to the aggregation switches through respective corridor switches. The aggregation switches connect users to the external network. The aggregation switches in the two buildings can be connected using cluster cables to form a CSS. The two aggregation switches then work like one device, simplifying the network structure. The device management and maintenance costs are therefore reduced. In addition, two links to the external network are available to users in each building, which greatly improves service reliability.

Figure 8-24  Long-distance clustering
Updated: 2019-12-28

Document ID: EDOC1000142080

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