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ZYUNsong82086
Hey,
You need to change the priority numbers.
First, boot the first switch in the stack and give it the highest priority number, 15. Also, use odd numbers.
After you give it the highest number save the config then restart that switch.
After restart check the priority number that it is correct, Still 15.
Wait about ten minutes then boot the next switch you want to be the slave.
Then boot other switches in sequence, with same wait time.
MAKE SURE IT'S WIRED UP CORRECTLY BEFORE YOU START THIS PROCESS
Priority Values
A higher priority value for a stack member increases its likelihood to be elected stack master and to retain its stack member number. The priority value can be 1 to 15. The default priority value is 1. You can display the stack member priority value with the show switch user EXEC mode command.
3750-Stk>show switch
Current
Switch# Role Mac Address Priority State
--------------------------------------------------------
1 Slave 0016.4748.dc80 1 Ready
*2 Master 0016.9d59.db00 5 ReadyCisco recommends that you assign the highest priority value to the switch that you prefer to be the stack master. This ensures that the switch is re-elected as stack master if a re-election occurs.
How do you change the priority value?
From the global configuration mode, issue the command switch stack-member-number priority new-priority-value .
From the bootloader switch: prompt, issue the command set SWITCH_PRIORITY new-priority-value .
Even though the priority value applies immediately to the member, it will not affect the status of the current stack master. New priority value will play a role in the next stack-master election.
Stack Master Election
How is the stack master elected?
These rules have been defined to determine which unit within a stack is chosen as the master. When switches are added or stacks are merged, the master will be chosen based on these rules, in the order specified:
The switch that is currently the stack master.
Note: When stacks merge, the elected stack master would have been the master of one of the merged stacks.
Note: When stacks partition, the stack master of the original stack will be the master of its partition.
The switch with the highest stack member priority value.
Note: Cisco recommends that you assign the highest priority value to the switch that you prefer to be the stack master. This ensures that the switch is re-elected as stack master if a re-election occurs.
Different model #, but same process
@ZYUNsong82086 wrote:Hi, everybody
Some issues with the Cisco 3850 stack version 16.09.03
Why did he miss the instruction to change the "role"?
I am pretty sure that version 16.06.03 is a command with a "role"
Because I need to change all 3850 characters from standby to active
However, the new version did not have this order on version 16.09.03I need to update his version for some reason.
I want to ask if there are any alternative instructions or
Change active standby mode?
Who can answer me? I need help:(
I have already readhttps://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst380/software/release/169/command_reference/b_169_3850_cr/stack_manager_and_high_availabilitcommands.htmlP.S. My English is not very good, so I use the translation software to ask questions.
I'm very sorry
Yes, I understand, but my problem is
I change the priority of the two switch 3850 or maintain
Switch 1 active
Switch 2 standby
I use show switch stack-mode
Mode is N+1
I need to change mode to 1+1 but not
Switch stack-number role active | standby This command switches me to
Mode 1+1
This makes me distressed and hopes to answer for me. Thank you!
