Dell Force10 E600i FTOS Configuration Guide FTOS 8.4.2.8 E-Series TeraScale - Page 1029

Figure 50-11. Stacking Cable Redundancy A B A B A B Stacking Cable Redundancy Stacking 002 LED Status Indicators on an S-Series Stack The stack unit is displayed in an LED panel on the front of each switch. Each panel displays the stack unit ID - from 0 through 7 - and: • A for the management unit • Bfor the standby management unit • 0 for stack members Add a Unit to an S-Series Stack If you are adding units to a stack, you can either: • allow FTOS to automatically assign the new unit a position in the stack, or • manually determine each units position in the stack by configuring each unit to correspond with the stack before connecting it Three configurable system variables affect how a new unit joins a stack: priority, stack number, and provision. • Depending on which has the higher priority, either the standalone unit or the entire stack reloads (excluding the new unit). If the new unit has the higher priority, it becomes the new stack manager and the stack reloads, as shown in Figure 50-3, Figure 50-4, Figure 50-5, and Figure 50-6. • If you add a unit that has a stack number that conflicts with the stack, the stack assigns the first available stack number, as shown in Figure 50-12 and Figure 50-13. • If the stack has a provision for the stack-number that will be assigned to the new unit, the provision must match the unit type, or FTOS generates a type mismatch error, as show in Figure 50-14 and Figure 50-15. After the new unit loads, it synchronizes its running and startup configurations with the stack. Stacking S-Series Switches | 1029