Netgear M5300-28G3 Software Administration Manual - Page 353

ProSafe Managed Switch Table 1. Switch Stack Master Scenarios (Continued) Scenario Action Result Stack master election specifically determined by the MAC address. Assuming that both stack members have the same priority value and firmware image, restart both stack members at the same time. The stack member with the higher MAC address is elected stack master. Add a stack member. • Power off the new switch • Through their stacking ports, connect the new switch to a powered-on switch stack. • Power on the new switch. The stack master is retained. The new switch is added to the switch stack. Stack master failure. Remove (or power off) the stack master. One of the remaining stack members becomes the new stack master. All other members in the stack remain stack members and do not reboot. Preconfigure a Switch You can preconfigure (supply a configuration to) a new switch before it joins the switch stack. You can specify the stack member number, the switch type, and the interfaces associated with a switch that is not currently part of the stack. Note: If you are replacing a switch with the same model in the same position in the stack, you do not need to preconfigure it. The new switch assumes the same configuration as the previous switch. 1. Issue the member command. To view the supported unit types, use the show supported switchtype command. 2. Next, configure the unit you just defined with configuration commands, just as if the unit were physically present. Ports for the preconfigured unit come up in a detached state. 3. To see the ports, use the show port all command. Now you can configure the detached ports for VLAN membership and any other port-specific configuration. After you preconfigure a unit type for a specific unit number, attaching a unit with different unit type for this unit number causes the switch to report an error. The show switch command indicates config mismatch for the new unit and the ports on that unit don't come up. To resolve this situation, you can change the unit number of the mismatched unit or delete the preconfigured unit type using the no member command. When you add a preconfigured switch to the switch stack, the stack applies either the preconfigured configuration or the default configuration. The following table lists the events Chapter 19. Switch Stacks | 353