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New Member

routing protocols

hi,

i'm looking for a routing protocol which is distance-vector and link-state in one. is there anybody who can tell me something about it? i only know routing protocols which are one of this two kinds (link-state and distance-vector).

but i had a question about it in a exam.

thanks

thomas

5 REPLIES
New Member

Re: routing protocols

Cisco bills EIGRP as a hybrid routing protocol... That may be the answer you were looking for.

Mick.

New Member

Re: routing protocols

hi mick,

thank you very much for your answer. eigrp was one of the answers in the exam. but i thought it's a only distance-vector.

thomas

New Member

Re: routing protocols

OSPF is Link state within an area, and distance vector between areas.

This is another posible answer.

Regards;

Doug

New Member

Re: routing protocols

the answer to that would be EIGRP. EIGRP is a Cisco proprietery routing protocol that takes into account distance vector as well as link state. It's also called a hybrid routing protocol for obivious reason.

Gold

Re: routing protocols

The exam was wrong; there is no such protocol. When EIGRP was first put out, the marketing folks said it was a hybrid between link state and distance vector, but EIGRP is truly a distance vector protocol. Note this isn't a bad thing--EIGRP is a completely different distance vector protocol than RIP, for instance, using DUAL, rather than Bellman-Ford. The best intro would be the EIGRP white paper on CCO, or the EIGRP for IP Networks book on Addison Wesley. There is a good Cisco Press book as well, and a section on EIGRP in Advanced IP Network Design. There's also a section on EIGRP in Alex Zinin's IP Routing book,and the Networker's slides are always a good reference.

Russ

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