Netgear GSM5212P GSM5212P/GSM7212P/GSM7212F/GSM7224P Administration Manual - Page 332

ProSafe Managed Switch 5. Install the new switch in the rack: • If you are installing the same model switch, put it in the same position in the stack as the one that you just removed. • If you are installing a different model switch you can either put it in the same position as the previous switch, or at the bottom of the stack. 6. Cable the new switch, following the established order of stacking cables. 7. Power up the new switch. Verify, by monitoring the master switch console port, that the new switch successfully joins the stack by issuing the show switch command. The new switch should join as a member (never as master; the existing master of the stack should not change). 8. If the code version of the newly added member is not the same as the existing stack, update the code as described in Upgrade the Firmware on page 323. Switch Stack Configuration Files The configuration files record settings for all global and interface-specific settings that define the operation of the stack and individual members. Once a save config command is issued, all stack members store a copy of the configuration settings. If a stack master becomes unavailable, any stack member assuming the role of stack master will operate from the saved configuration files. When a new, out-of-box switch joins a switch stack, it uses the system-level settings of that switch stack. However, if you want it to store this system level configuration, you must issue a save config command. You back up and restore the stack configuration using the copy command the same way that you would for standalone switch configuration. The following table provides switch stack configuration scenarios. Most of the scenarios assume at least two switches are connected through their stacking ports. Table 1. Switch Stack Master Scenarios Scenario Action Result Stack master election specifically determined by existing stack masters. Note: This is not recommended. Connect two powered-on switch stacks through the stacking ports. Only one of the stack masters becomes the new stack master. No other stack members become the stack master. Stack master election specifically determined by the stack member priority value. • Connect two switches through their stacking ports. • Use the global configuration command switch stack-member-number priority new-priority-number to set a stack member to a higher member priority value. • Restart both stack members at the same time. The stack member with the higher-priority value is elected stack master. 332 | Chapter 19. Switch Stacks