Best Practice: Replacing Core Stack Master incl. MLAG Master

  • 1
  • Idea
  • Updated 7 months ago
Hi,

customer having Following Setup:



Now I need to replace the both Stack master regarding:

https://gtacknowledge.extremenetworks.com/articles/Solution/FN-416-X620-16x-PSU-Failures


I'm wondering if anyone have a best practice advise for it to do that replacement without service Interruption.

Not sure what will happen when changing the Master Stack note in case of mLAG, as the MLAG MAC is changing. Anything else I need to think about?
Photo of Nico Lueck

Nico Lueck

  • 512 Points 500 badge 2x thumb

Posted 7 months ago

  • 1
Photo of OscarK

OscarK, ESE

  • 7,792 Points 5k badge 2x thumb
If you configured the stack mac address and MLag lacp mac-address no mac-address will change.
https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-configure-MLAG-in-Extreme-switches
configure mlag peer <peer name> lacp-mac <mac>
Photo of Nico Lueck

Nico Lueck

  • 512 Points 500 badge 2x thumb
ok, but I think when changing that one, on master and backup Core, there will be an interruption?
Photo of OscarK

OscarK, ESE

  • 7,792 Points 5k badge 2x thumb
If you reconfigure the mlag lacp-mac you will get a short outage yes.