At 05:49 PM 1/7/02, Steven A. Ridder wrote:
>I understand that FR is multi-protocol, but I feel confident in saying that
>most traffic is IP based.

Traffic wasn't so overwhelmingly IP-based at the time that Frame Relay was 
designed. And even in the case of the IP traffic, quite a bit of it was and 
still is UDP-based. Also, I don't think the CCITT (ITU) really cared too 
much about what was riding above. The OSI layers dictate modularity.

I doubt that answers your question, though! I hope someone else answers 
too. Also see one additional comment below.


>With that out of the way, historically, why did the writers of frame-relay
>include BECN as a method of congestion control when 1, it isn't end-to-end
>as TCP is, and therefore not as "good" as TCP, and 2,

End-to-end congestion control isn't necessarily better. Consider three
regions:

Region 1   Region 2   Region 2

If Region 2 experiences congestion and can notify Region 1 (and Region 1 
can adjust), then Region 3 never experiences the congestion. This is a good 
thing.

>not nearly as robust
>and complex as TCP's tried and true methods of congestion control.
>
>Is there another reason that I don't understand.
>
>--
>
>RFC 1149 Compliant.
>
>
>FAQ, list archives, and subscription info: 
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]


________________________

Priscilla Oppenheimer
http://www.priscilla.com




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=31226&t=31219
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

Reply via email to