Netgear XSM4324FS Software Administration Manual Software Version 12.x - Page 464

M4300 Series and M4300-96X Fully Managed Switches 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 must join as a member (not as master; the existing master of the stack must not change). 8. If the firmware version of the newly added member is not the same as the existing stack, update the firmware (see Upgrade the Firmware on page 455). Switch Stack Configuration Files The configuration files include all global and interface-specific settings that define the operation of the stack and its individual members. If you issue the save config command, all stack members store a copy of the configuration settings. If a stack master becomes unavailable, the stack member that assumes the role of stack master operates from the saved configuration files. When a new, out-of-box switch joins a switch stack, the switch uses the system-level settings of that switch stack. However, if you want the store to store this system level configuration, you must issue the save config command. You can back up and restore the stack configuration by using the copy command in the same way as you back up and restore a standalone switch configuration. The following table provides switch stack configuration scenarios. Most of the scenarios assume that at least two switches are connected through their stack ports. Table 3. Switch stack master scenarios Scenario Action Result Stack master election specifically Connect two powered-on switch stacks determined by existing stack through the stack ports. masters. Note: NETGEAR does not recommend this scenario. Only one of the stack masters becomes the new stack master. No other stack members become the stack master. Stack master election specifically • Connect two switches through their determined by the stack member stack ports. priority value. • To set a stack member to a higher member priority value, issue the The stack member with the higher-priority value is elected stack master. switch stack-member-number priority new-priority-number global configuration command. • Restart both stack members at the same time. 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. Switch Stacks 464 Software Administration Manual