Bring a Spectrum switch from ONIE to a working leaf-spine: the NVUE object model and its revisions, ZTP, L2 with MLAG and VRR, a BGP-unnumbered underlay with sane ECMP, and BGP-EVPN symmetric IRB for tenant isolation.

1. 2.1 The NVUE object model, revisions and snippetsThe line nobody deletedAp
2. 2.2 Day-0: ONIE install, first boot and ZTPTwenty-nine of thirty-twoAp
3. 2.3 Layer 2 that survives a reload: bridges, bonds, MLAG and VRRBoth bonds down, one host, 02:40Ap
4. 2.4 The underlay: eBGP unnumbered, ECMP and VRFsTwo spines, eighty-twentyAn
5. 2.5 BGP-EVPN symmetric IRB for tenant isolationTenant BLUE, seven hours outAn
6. Checkpoint