Networking Source : Stack switches

Stack-wise and stack-wise plus
source and destination stripping
stack member numbers
priority values
stack master election process
configuration manager

why, need stacked switch?

high end platform switches, modular switches (chasis, supervisor and line cards) which can function as data plane and supervisor takes care of control plane

Cisco wanted to implement the same technology to lower end switches by using stacking cables.

stack? connect more than 9 switches not all switches can form a stack

there are very specific setup can form a stack 3750x and 3750e

by connecting switches with stacking propitiatory cable one switch will act as single entity one of the switches will be considered as MASTER and the other switch will as a member

and any control plane traffic will be taken care by the MASTER and the data plane will be take care by both switches

any configuration you do in an existing stack will get sync with the members.

stack cables has greater capacity such as 6500 will give greater back plane speed

stack protocol