Introduction
Stack technology combines multiple switches that are connected through cables into one logical switch.
As a horizontal virtualization technology, a stack virtualizes multiple devices into one logical device, simplifying network configuration and management. Together with the inter-device link aggregation technology, stack implements highly reliable backup for devices and links and prevents Layer 2 loops. Compared with traditional Layer 2 loop prevention technologies, stack provides a clearer logical topology and higher link efficiency.
NOTE: Stack of CE12800&12800E series modular switches is also called cluster switch system (CSS), and stack of CE8800&7800&6800&5800 series fixed switches is also called intelligent stack (iStack). The two functions have the same functions but different names. This document uses stack to represent CSS and iStack.
