I only see two examples on that page that are different. The first is on a 56k link, Bc=1000 and CIR=56000. Bc/CIR = .0178, or basically 18ms. I know that's higher than the recommended 10ms, but perhaps there are drawbacks to lowering the Bc below 1000 that I'm not aware of.
The other example is on a 256k link. Bc = 1000, CIR = 256000, so Bc/CIR = .004, or 4ms. This will set your Tc to the minimum of 10ms, IIRC. Regards, John >>> "Steven A. Ridder" 12/18/01 5:22:56 PM >>> The bc info for the Frame-Relay traffic shaping info on that page is wrong. One should always target Bc to get a Tc of 10ms, but the config examples are more like a Bc of 36.4. So you have the serialization delay time at 36.4, but optimally you want 10ms. The packets will be going out at 10ms (or less cause fragmentation ias correct) but the time interval the router uses is at 36.4ms. ""John Neiberger"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Here is another link that deals with WAN QoS, including some items that > might not occur to you such as sizing the interface transmit ring. > > http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/avvidqos/qoswa n.htm > > > HTH, > John Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=29574&t=29559 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

