Operation Manual – Stack-ClusterH3C S3100 Series Ethernet Switches Chapter 1 Stack1-1Chapter 1 Stack1.1 Stack Function OverviewA stack is a management domain formed by a group of Ethernet switchesinterconnected through their stack ports. A stack contains a main switch and multipleslave switches.Logically, you can consider a stack a single device and manage all the switches in astack through the main switch.1.1.1 The Main Switch of a StackYou can configure multiple Ethernet switches interconnected through their stack portsto form a stack by performing configurations on one of the switches. In this case, theswitch becomes the main switch of the stack.You can perform the following operations on a main switch:z Configuring an IP address pool for the stackz Creating the stackz Switching to slave switch viewBefore creating a stack, you need to configure an IP address pool for the stack on themain switch. When adding a switch to a stack, the main switch picks an IP address fromthe IP address pool and assigns the IP address to it automatically.After a stack is created, the main switch automatically adds the switches thatconnected to its stack ports to the stack. If a stack port connection is disconnected, thecorresponding slave switch quits the stack automatically.1.1.2 The Slave Switches of a StackAll the switches in a stack except the main switch are slave switches.You can configure a slave switch in a stack on the main switch.1.1.3 Creating a StackThe following are the phases undergone when a stack is created.z Connect the intended main switch and slave switches through stack modules anddedicated stack cables. (Refer to H3C S3100 Series Ethernet SwitchesInstallation Manual for the information about stack modules and stack cables.)z Configure the IP address pool for the stack and enable the stack function. Themain switch then automatically adds the switches connected to its stack ports tothe stack.