... curriculum/book. For further explanation and details, please read the chapter/ curriculum. Book: Routing Protocols and Concepts By Rick Graziani and Allan Johnson ISBN: 1-58713-206-0 ... Garcia-Luna-Aceves. Routing loops, even temporary ones, can be extremely detrimental to network performance. Distance vector routing protocols such as RIP prevent routing loops with hold-down timers and ... thefields relevant to the CCNA candidate are discussed. 11 EIGRP TLV Message Format EIGRP uses weights for its composite metric. Default, only bandwidth (K1) and delay (K3) are weighted (used)...