I've seen many things call it simply a "Distance Vector" protocol. >From what I can tell Path Vector and Distance Vector are the same thing.......I've also seen "BGP is essentially a distance-vector algorithm, but with several added twists.".... which could be why it's also called an Advanced Distance Vector procotol. So to settle this, let's hit the RFC....... ------------------------------------- RFC 1774 BGP-4 Protocol Analysis Network Working Group Request for Comments: 1774 Category: Informational P. Traina, Editor cisco Systems March 1995 BGP uses an algorithm that cannot be classified as either a pure distance vector, or a pure link state. Carrying a complete AS path in the AS-PATH attribute allows to reconstruct large portions of the overall topology. That makes it similar to the link state algorithms. Exchanging only the currently used routes between the peers makes it similar to the distance vector algorithms ------------------------------------ As you can see, this RFC is strictly informational, but it's the closest thing to "the facts" as we have....... I wouldn't spend a whole lot of time worrying about whether it's Distance Vector, Advanced Distance Vector, etc..... Those are just categorizations.... Once you learn how BGP operates, it's category is moot. Hope this helps! Mike W. "Jack Nalbandian" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Dear friends, > > I have been reading the Syngress and Cisco Press books, the RFCs related to > BGP, as well as the CCO docs, but keep getting a conflicting set of answers > on the following question: > > To what category of routing protocols does BGP belong? > > A. Distance vector? (CCO) > B. Advanced Distance Vector? (Sybex/Lammle/Cisco Press) > C. Path Vector? (Syngress/Osborne) > Regards, > > Jack Nalbandian, CCNA, MCSE > Network Engineer > DATAFLEX - U.S. Operations > 310.445.1052 x275 > [EMAIL PROTECTED] > > www.telephonyexperts.com > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. Any review, retransmission, dissemination or other use of, or > taking of any action in reliance upon, this information by persons or > entities other than the intended recipient is prohibited. If you received > this in error, please contact the sender and delete the material from any > computer. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=7466&t=7466 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
