Split Horizon and PR aren't distance vector routing protocols...
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NetEyez ~ CCNP, CCDA
----- Original Message -----
From: "Marcus A. Henry" <[EMAIL PROTECTED]>
To: "Z" <[EMAIL PROTECTED]>
Sent: Tuesday, February 27, 2001 2:23 AM
Subject: RE: FR + Poison Reverse...
> Split Horizon and Poison Reverse are Distance Vector Routing Protocols.
OSPF
> is a Link-State Routing Protocol, meaning it builds a complete picture of
> the network. Link-State Protocols prevent routing loops by using SPF
> algorithm. By flooding LSA's to routers in it's area all links, networks
and
> routers are known. OSPF can have a hop count of over 1,000 and a Distance
> Vector Protocol (RIP) is 15. OSPF does not use these Distance Vector
Routing
> Protocols.
>
> Marcus MCSE, MCP+I, CCNA, (working on CCNP)
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Z
> Sent: Monday, February 26, 2001 10:46 PM
> To: [EMAIL PROTECTED]
> Subject: FR + Poison Reverse...
>
> Hey Group,
> I recently pondered something while at work and nobody could give me a
> strait answer. Actually I feel a little embarrassed asking this due to me
> being an NP and I feel like I should know this. Guess this type of thing
> doesn't come up much around me. Question is: Can poison reverse (PR) be
used
> with OSPF? I know split horizon is used with it but I just cant see
why/how
> poison reverse would. My definition of PR is that it sets the link to the
> max hop count and deems it unreachable, hence the term poison. I can't see
> how this would work with OSPF because it doesn't use a hop count. Maybe
I'm
> confused about PR. Does it set the link to the highest metric, and not hop
> count? Maybe I'm just used to hearing about PR in discussions of RIP that
> I'm assuming it set the hop count to the highest and has nothing to do
with
> metric. Any clarity would help, thanks all...
>
> ...sorry for the rambling...
>
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> This has been an Eyez Only streaming e-mail broadcast...We are watching.
>
> NetEyez ~ CCNP, CCDA
>
>
>
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