RoutingBGP and OSPF, from the commands you forget between projects to a worked dual-homed design. The arithmetic lives in the Networking Toolbox.BGP Cheat SheetNeighbours, attributes, filtering and the verification commands. OSPF Cheat SheetAreas, LSA types, timers, network types and show commands. Dual Homed BGP with OSPFA worked design: two upstream providers, BGP at the edge, OSPF inside.