peter hessler @openbsdDec 2, 2018

and we are *done*

work just did a major migration from #mstp spanning tree, to a #EVPN #backbone spine/leaf configuration, where the leafs are connected with multi-chassis #lacp.

~12s outage per switch as we converted from old-world to new-world, including updating the mac-tables for all switches in our network.

6 months of preparation. 1 month of *serious* prep. 1 day move a few non-critical systems, and let them percolate. Then, 7 days of swingshift to move everything else..

#networking

Show threadpeter hessler @openbsdDec 2, 2018

spanning tree is no longer a relevant feature of our network.

most importantly, we got rid of it, *without* requiring changes to any end-user system.

Show threadCombat UnicornDec 2, 2018
@phessler So is there something else preventing network loops? Just the threat of slow, painful death?
Show threadpeter hessler @openbsd

@kurtm rstp is still running on the leafs, and that will catch loops there.

spines are primarily L3 routing. Or, using lacp to uplink anything with more than one port.

Dec 2, 2018 at 6:51pmWeb