Configuring a Stack 157■ If auto-numbering is selected, the system sets the unit ID priority to 10. Youcan use the fabric save-unit-id command to save the modified unit ID intothe unit Flash memory and clear the information about the existing one.The unit IDs in a stack are not necessarily numbered consecutively or in ascendingorder.By default, the unit ID of a Switch is set to 1. A unit ID can be set to a value in therange from 1 to the maximum number of devices supported in XRN.Saving the Unit ID ofEach Unit in the StackYou can use the commands in the following table to save the unit ID of each unitin the stack to the unit Flash memory.Perform the following configuration in User View.Table 163 Save the unit ID of each unit in the stackSpecifying the FabricPort of the SwitchPerform the following configuration in System View.Table 164 Specifying the Fabric Port of the SwitchOnly the Gigabit combo ports can be used to interconnect the Switch units toform a stack.In the 3Com switch operating system, the term "fabric" is used as a generalexpression for stack.Setting Unit Names forSwitchesYou can use the command in the following table to set a unit name for eachSwitch.Perform the following configuration in System View.Table 165 Setting Unit Names for SwitchesSetting a Stack Name forSwitchesOnly the Switches with the same stack name and XRN authentication mode canconstitute a stack.You can use the commands in the following table to set a stack name for theSwitches.Perform the following configuration in System View.Operation CommandSave the unit ID of each unit in the stack fabric save-unit-idRestore the unit ID of each unit in the stack undo fabric save-unit-idOperation CommandSpecifying the stacking port of theSwitchfabric-port { interface-name |interface-type interface-num } enableCancel the stacking port of theSwitchundo fabric-port { interface-name |interface-type interface-num } enableOperation CommandSet unit names for Switches set unit unit-id name unit-name
