John, I assume the '25' after each percentage sign in your original post below is a typo (e.g., "15%25 of bandwidth"). Given that assumption, you want to assign traffic to three categories, with 15%, 50%, and 35% of the 64 kbps bandwidth.
64000 x .15 = 9600 bps 64000 x .50 = 32000 bps 64000 x .35 = 22400 bps > burst size should 1/8 of the bit rate cfg'd, no excess burst 1/8 = .125 9600 x .125 = 1200 bps 32000 x .125 = 4000 bps 22400 x .125 = 2800 bps However, I question the burst size given in your solution. The definition from the Doc CD states that the burst-size is the "Sustained number of bits that can be sent per INTERVAL. On Frame Relay interfaces, this is the Committed Burst size contracted with your service provider. " See http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ fqos_r/qrfcmd11.htm#1019905 If the interval is 1/8 second (and it may not be) I would think the correct answer would divide each of 1200, 4000, and 2800 by 8, to get bits per interval. HTH, Jonathan > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of John Smith > Sent: Wednesday, June 18, 2003 10:21 AM > To: [EMAIL PROTECTED]; [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED]; > [EMAIL PROTECTED]; [EMAIL PROTECTED]; > [EMAIL PROTECTED] > Subject: QoS - Enabling Traffic Shaping > > > Somehow I have forgotten how to do math... Can anyone explain > to me or point to a doc on figuring out the percentage for > the below lab. > > Enable traffic shaping on int serial 0/0 as follows: > > Shape Telnet and ICMP traffic to 15%25 of bandwidth > Shape FTP traffic to 50%25 of bw > Shape all remianing traffic to 35%25 of bw. > > Remember the total link bw is 64 kbps on this interface. The > burst size should 1/8 of the bit rate cfg'd, no excess burst > should be allowed. > > The answer from the lab help are, below can anyone tell me > how the number 9600, 32000 and 22400 were arrived at? I can > figure out the 1/8th part 1200, 4000 and 2800, but somehow > can't remember how to get the original percentage.. > > traffic-shape group 101 9600 1200 1200 > traffic-shape group 102 32000 4000 4000 > traffic-shape group 103 22400 2800 2800 > > Thanks. > > > > --------------------------------- > Do you Yahoo!? > SBC Yahoo! DSL - Now only $29.95 per month! > > > ______________________________________________________________ > _________ > You are subscribed to the GroupStudy.com CCIE R&S Discussion Group. > > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=70869&t=70869 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
