VXLAN EVPN Troubleshooting: What Actually Breaks
Four faults hit in a real Nexus fabric, the output that identified them, and an ordered method for the next one.
vPC
Virtual PortChannel lets two Nexus switches present one logical LACP peer, removing spanning-tree blocking from the access layer. Articles tagged vPC cover peer-links, keepalives, consistency checks and orphan ports.
Latest posts
VXLAN L2VNI Configuration on Nexus, Proven
An L2VNI build on a real Nexus fabric, including the vPC anycast VTEP mistake that produced an empty peer table and how it was fixed.
vPC Failure Modes: Peer-Link, Keepalive, Type-1
The vPC failure matrix, with the Type-1 mismatch demonstrated on real hardware and the peer-link and keepalive rows explained rather than faked.
vPC Explained: Build It and Read Its Health
A real NX-OS vPC build with the warnings it emits, the health output decoded field by field, and an honest look at orphan ports.