Link to Reddit Meraki MX Update 16.16 / Broken SFP : meraki (reddit.com)  We are experiencing same issue.  We have Cisco brand SFP's connected to Nexus 7K.  As soon as we introduce the warm spare (also on 16.16), the primary WAN interface connected via the SFP begins to bounce until it stays down/down.  Manual shut/no shut on the Nexus to bring it back up after shutting down the warm spare.   ... View more

MSchwark,   Did you ever get a solution from Cisco on your physical MX100's?  I have an open ticket as well and have yet to get it upgraded.  Thanks.  ... View more