Yes, 10ms is the target for sample interval for assessing voip and real-time traffic.
No the RSVP value is independant of the FRTS values but YOU want to make sure you have a match so you don't reserve more than you can provide or under reserve for your requirements ;) The golden formulae for FRTS is Tc=Bc/CIR this gives 10msec = 8000 / 800000 for the CCO example That gives time interval only, you then specify Be for that time interval as well as the mincir you would adaptive shape down to. RSVP is based on reserving a 'guaranteed' amount of bandwidth and in the example an RSVP statement exists for each subinterface which the sum appears on the physical interface. You might also want to specify RSVP priority queue for voice. Darren Ward (PGradCS, CCIE #8245, CCNP, CCDP, MCP) On Wed, 10 Jul 2002, Luciano Borges Moraes wrote: > Hi There. > > I've read the doc from > http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt5/qcfrsvfr.htm#xtocid20 > > that try to explain how to configura RSVP on Frame-Relay multipoint > sub-interfaces. > > My first question is, based on the example provided by that doc, what is > the calculation that has to be made to get the correct values for "ip > rsvp bandwidht" command on hub and spokes routers? > > The second question is about FRTS. I usually calculate the values for > FRTS like the following: > CIR=whole interface BW > minCIR=CIR provided by ISP/TELCO/etc > BC=minCIR/8 > BE=EIR/8 > EIR=(CIR-minCIR) > TC=1/8s > > On the example provided by > http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt5/qcfrsvfr.htm#xtocid20, > these values are calculated in a different manner. > look the note bellow: > Note When FRTS is enabled, the Frame Relay Committed Burst (Bc) value > (in bits) should be configured to a maximum of 1/100th of the CIR value > (in bits per second). This configuration ensures that the FRTS token > bucket interval (Bc/CIR) does not exceed 10 Ms, and that voice packets > are serviced promptly. > > Is that info correct? > > Luciano. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=48462&t=48456 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
