Procedure for adding new switch to existing stack switch in DNAC

[akhil kamalakaran]

DNAC Software Version = 2.3.5.6 - 70143

Switch model = C9200L-48PL-4X

Switch Software version = 17.12.4

Note: Existing stack switch have 2 switches. We are planning to add one more new switch. Kindly share what is the procedure & what are the other things we need to consider for adding new switch? Kindly help...

[Leo Laohoo]

1.  Enable "software auto-upgrade" enable.  

2.  Add the new switch member to the stack. 

3.  Done.  

[akhil kamalakaran]

Hi @Leo Laohoo , Thanks for the reply

New switch version is same as the existing switch version. So i think software auto-upgrade is not requires.

And once we connect the stack cable to new switch.

1. Entire switch stack need to reload?

2. Downtime is require for adding new switch in existing stack switch in DNAC?

3. In DNAC, any procedure need to run, like re-sync or something?

Please comment....

[Leo Laohoo]

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@akhil kamalakaran wrote:

1. Entire switch stack need to reload?

2. Downtime is require for adding new switch in existing stack switch in DNAC?

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The entire stack does not need nor require a reload when the new switch member is added to the stack. 

1.  Make sure the new stack member is powered OFF. 

2.  Rack mount the new stack member

3.  Connect the stacking cables and make sure the screws at the back are secure

4.  Power up the new stack member

[akhil kamalakaran]

one bug that related to DNAC new switch port

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa44791

I think if the port configuration (closed auth-related settings) is not automatically added when adding a switch, we need to manually configure the authentication/closed auth commands on the switch port. Has anyone faced this issue?