12-28-2015 10:44 AM - edited 03-08-2019 03:14 AM
hi
need help in setting up stack config for 3850. i have 2 switches of the same model one should be the master and other should be the member. i have a stack cable and i have another cable not sure what it is for you can see the in the picture i have attached. i connected both cables to the appropriate port in the back of the switch. but on console i don't see the stack port is on. i definitely missing something here. so please help.
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12-28-2015 11:45 AM
Hi,
The other cable is the stacking cable for power. You can power up switches by daisy chaining them together (see figure-7 in this link).
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/hardware/installation/guide/b_c3850_hig/b_c3850_hig_chapter_010.html
As for data stacking make sure you are cross connecting them together. (see the same link).
If you want one switch to be the master, give it a higher priority. 1 is the worst and 15 is the best. So give it 15.
see link:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3.2_0_se/multibook/configuration_guide/b_consolidated_config_guide_3850_chapter_01100101.html#con_1153255
HTh
12-28-2015 03:30 PM
Reza is correct. Bottom cable is your data stacking cable. Out of the box the 3850's will stack automatically. The stack master will be elected unless you give one a higher priority like Reza mentioned. The show switch command will give you details about the stack.
I just setup 2 switch stacks of 3850's last week. Here is what I did. Powered on the switch I wanted to be the stack master. Then configured stack priority with the following:
Switch# switch 1 priority 15
Then connect the stacking cables to the two switches and power on the second unit. After about 8 minutes when it finally boots up you should see it join the stack!
John
12-28-2015 11:45 AM
Hi,
The other cable is the stacking cable for power. You can power up switches by daisy chaining them together (see figure-7 in this link).
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/hardware/installation/guide/b_c3850_hig/b_c3850_hig_chapter_010.html
As for data stacking make sure you are cross connecting them together. (see the same link).
If you want one switch to be the master, give it a higher priority. 1 is the worst and 15 is the best. So give it 15.
see link:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3.2_0_se/multibook/configuration_guide/b_consolidated_config_guide_3850_chapter_01100101.html#con_1153255
HTh
12-28-2015 03:30 PM
Reza is correct. Bottom cable is your data stacking cable. Out of the box the 3850's will stack automatically. The stack master will be elected unless you give one a higher priority like Reza mentioned. The show switch command will give you details about the stack.
I just setup 2 switch stacks of 3850's last week. Here is what I did. Powered on the switch I wanted to be the stack master. Then configured stack priority with the following:
Switch# switch 1 priority 15
Then connect the stacking cables to the two switches and power on the second unit. After about 8 minutes when it finally boots up you should see it join the stack!
John
12-28-2015 03:43 PM
thank you i will try and let you know.
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