Layers
Shapes: rounded box router (smaller: L3 switch), hexagon firewall, box switch, cut box hypervisor, dot server or host, dashed dot VM, diamond external peer. Red dashed lines are adjacencies that are not up. +N means N more neighbours not shown. Types writes the device type under each name; Vendors marks the vendor; Ports names the port at each end of a physical link (zoom in to read them). Hover a link for its details.