Operation Manual – Stack-ClusterH3C S5100-SI/EI Series Ethernet Switches Chapter 1 Stack1-3As for the stack-related configurations performed on a main switch, note that:z After a stack is created, the main switch automatically adds the switchesconnected to its stack ports to the stack.z If a stack port connection is disconnected, the corresponding slave switch quitsthe stack automatically.z The IP address pool of an existing stack cannot be modified.z To add a switch to a stack successfully, make sure the IP address pool contains atleast one unoccupied IP address.z Make sure the IP addresses in the IP address pool of a stack are successive sothat they can be assigned successively. For example, the IP addresses in an IPaddress pool with its start IP address something like 223.255.255.254 are notsuccessive. In this case, errors may occur when adding a switch to the stack.z IP addresses in the IP address pool of a stack must be of the same networksegment. For example, the 1.1.255.254 is not a qualified start address for a stackIP address pool.z If the IP address of the management VLAN interface of the main switch (or a slaveswitch) is not of the same network segment as that of the stack address pool, themain switch (or the slave switch) automatically removes the existing IP addressand picks a new one from the stack address pool as its IP address.z Since both stack and cluster use the management VLAN and only one VLANinterface is available on the S5100-EI switch, stack and cluster must share thesame management VLAN if you want to configure stack within a cluster.1.2.2 Switching to Slave Switch ViewAfter creating a stack, you can switch to slave switch view from the main switch toconfigure slave switches.Table 1-2 Switch to slave switch viewOperation Command DescriptionSwitch to slaveswitch view stacking numberRequiredNumber: Number of the slave switchto switch to.This command can be used toswitch from user view of the mainswitch to user view of a slave switch.The user level remains the samewhile switching.You can quit slave switch view after slave switch configuration.
