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CloudEngine 8800, 7800, 6800, and 5800 V200R002C50 Configuration Guide - Virtualization

This document describes the configurations of virtualization, including stack and SVF.
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Overview of Stacks

Overview of Stacks

Definition

Intelligent stack (iStack) technology combines multiple switches into a single virtual switch, as shown in Figure 1-3.

Figure 1-3 Schematic diagram of a stack

Purpose

Stacking technology provides high network reliability and scalability, while simplifying network management.

  • High reliability: Member switches in a stack work in redundancy mode. Inter-device Eth-Trunk links can also be set up between the member switches for link redundancy.

  • High scalability: By combining physical switches into a stack, you can easily increase the number of ports, bandwidth, and processing capability without changing the network topology.

  • Simplified configuration and management: You can log in to a stack from any member switch to manage and configure all the member switches. After switches set up a stack, complicated Layer 2 loop-prevention protocols (such as MSTP) or Layer 3 protection switching protocols (such as VRRP) do not need to be configured, simplifying the network configuration.

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Updated: 2019-04-20

Document ID: EDOC1000166645

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