My vote would be #2. Simply based on the definition of the verb 'flap': "To
wave ... up *and* down." [emphasis added]
http://www.dictionary.com/cgi-bin/dict.pl?term=flap
---JRE---
""Tom Pruneau"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Greetings All
>
> I am in the process of writing a BGP class, at present I am specifically
> working on a section covering dampening.
>
> My question is "what is a flap"
>
> The two possible answers are:
>
>
> Answer one
> A flap is whenever path information changes for a route. By this
definition
> if a route goes away, that would be a flap. When the route comes back,
that
> would be another flap.
> So a route going away then coming back would be 2 flaps.
>
>
> Answer two
> A flap is a route transition from up to down back to up. So a route going
> away then coming back would count as one flap.
>
>
>
> I am mucking with this in my lab and the lab would seem to indicate that
> answer two is the correct one, but when I read the Sam Halabi copyright
> 1997 internet routing architectures book, page 440 and 441 it says the
> answer is Answer one.
>
> I am at best confused
>
> Any help?
> Tom Pruneau
> Trainer Network Operations
>
> GENUITY
> 3 Van de Graff Drive Burlington Ma. 01803
> 24 Hr. Network Operations Center 800-436-8489
> If you need to get a hold of me my hours are 8AM-4PM ET Mon-Fri
>
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