9300 Stack

[waqas.arshad]

We have stack of 3850 switches and planning to replace it with Catalyst 9300.  Anyone can help with replacement process? What should be the replacement strategy? Should i connect all switches in stack and copy the running config?

[balaji.bandi]

If you already got Cat 9300 (depends model  follow below guide )

https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9300-series-switches/white-paper-c11-741468.html

Make sure you upgrade the Latest code 17.6.4, so you do not need again small downtime to upgrade to latest code.

I am sure you know already building stack, make sure you choose the right master switch and secondary switch and members

Build offline, get the show run  config from Cat 3850, put in nodepad++ ( tweak the config required only Cat 9300 Switch relavant)

paster the config on newly build stack Cat 9300 and do some testing offline before you do cut over.

i am sure your cut over - turn off old Cat 3850 and Bring up the Cat 9300 connecting uplinks ?

or you looking both co-exist and step migration ?

Note : i would not advice to paster complete config from Cat 3850 to Cat 9300, also capture show interface status, ip arp to compare before and after migration)

[waqas.arshad]

Dear Balaji,

Thank you for your help. I will test it let you know with further updates.

Regards,

W Arshad

[balaji.bandi]

Sure no problem - Let us know the outcome success or any issue.

[waqas.arshad]

I am configuring the switch for stack. but I don't see any command to change the priority. 

Cisco IOS XE Software, Version 17.05.01
Cisco IOS Software [Bengaluru], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.5.1, RELEASE SOFTWARE (fc3)

SW1(config)#switch 1 ?
provision Configure Switch provision / offline config

How can i change the priority to make it Master switch.

Regards,

Arshad

[waqas.arshad]

As per the Cisco documentation the command should be available in Cisco IOS XE Software, Version 17.05.0 but i don't see this command. 

SW1(config)#switch 1 ?
provision Configure Switch provision / offline config

@balaji.bandi Do you have any idea?

Regards,

Arshad

[balaji.bandi · Accepted solution]

changing switch number and priroty should be

# (not config t level)

9300#switch <number> priority 15

[waqas.arshad]

Thank you. It worked.