Hi List, I am working at a new datacenter that has a spine/leaf (all Nexus 9ks) topology. The spine switches (two of them) are configured for MST but all of the leaf switches are running rapid-pvst. I would like to migrate the spine's to rapid-pvst but I want to make sure i'm not missing anything when I go to do so. Currently spine2 is the root for all VLAN's. I want to make spine1 the root for all VLAN's (and eventually enable peer-switch for better convergence) so that this matches the vPC role of being primary and also matches the vrrp primary roles as well.
So my question is can I just change on spine1 the priority for rapid-pvst to 4096 on all VLAN's then change the spanning-tree mode to rapid-pvst and only expect a few seconds of re-convergence (MAC flushing/learning/flooding of BPDUs to the downstream switches and spine 2) and only have a few seconds of traffic disruption? I have migrated a datacenter from rapid-pvst to MST before and followed the documentation from cisco on this ( https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/72844-MST.html) which says to start at the distribution and work your way down to the access layer but this is the reverse of that and I want to make sure I don't lose the second spine when I make the changes on the first spine. Thoughts or suggestions are welcome. TIA, Max _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/