Of course Jacob, here is the table for G711, you just needed to change the payload to 160 in relation to the calculations of g729 Anyway is much more probable you will need during the lab the table of g729 since a common requirement is using that codec for calls by the WAN , then try to focus on memorize that one.
G711 FRF.12 (rounded value)Kbps MLPPP(rounded value)Kbps cRTP Disabled 84 87 cRTP Enabled 69 72 -------------------------------------------------------------- SCENARIO 1 g711 , cRTP Disabled, FRF.12 RTP HEADER 40bytes FR HEADER-FRF12 8 bytes PAYLOAD 160 bytes TOTAL 208 bytes 208 * 8 = 1664 bits BW 1664 * 50 = 83,200 BW = 83,2 kbps (rounded to 84) ---------------------------------------------------------- SCENARIO 2 G711, cRTP Enabled, FRF.12 RTP HEADER 4bytes FR HEADER-FRF12 8 bytes G729 PAYLOAD 160 bytes TOTAL 172 bytes 172 * 8 = 1376 bits 1376 * 50 = 68,800 BW = 68,8 kbps (Rounded to 69) ------------------------------------------------------------- SCENARIO 3 g729 , cRTP Disabled, MLPPP RTP HEADER 40bytes FR HEADER 4 bytes MLPP HEADER 13 bytes G729 PAYLOAD 160 bytes TOTAL 217 bytes 217 * 8 = 1736 bits 1736 * 50 = 86,800 BW = 86,8 kbps (Rounded to 87) --------------------------------------------------------- SCENARIO 4 g729 , cRTP Enabled, MLPPP RTP HEADER 4 bytes FR HEADER 4 bytes MLPP HEADER 13 bytes G729 PAYLOAD 160 bytes TOTAL 181 bytes 181 * 8 = 1448 bits 1448 * 50 = 72,400 BW = 72,4 kbps (Rounded to 72) -----Original Message----- From: Jacob Owen [mailto:[EMAIL PROTECTED] Sent: Fri 10/3/2008 8:30 PM To: Christian Narvaez Subject: Re: [OSL | CCIE_Voice] Antw: Bandwidth Values used for FRTS Christain, Do you have a table like this for G711 calls? I hate to admit but WAN QoS is one of my weakest areas, you'd think with 2 other IE's I'd get exposure to technologies like QOS but nope, not me. :) Thanks. On Fri, Oct 3, 2008 at 1:13 PM, Christian Narvaez <[EMAIL PROTECTED]>wrote: > Kevin, > > > > I use the following table with the values that I calculated for each > scenario of shapping , LFI and compression. I did memorize it for an easier > use during the lab. > > > > *G729* > > FRF.12 (rounded value)Kbps > > MLPPP(rounded value)Kbps > > > > > > > > cRTP Disabled > > 28 > > 31 > > cRTP Enabled > > 13 > > 17 > > > > Below is the detail of how I calculated the rounded value (don't forget > during the lab you count with 10% margin) . Correct me if I am wrong in any > calculation, > > > > SCENARIO 1 > > g729 , cRTP Disabled, FRF.12 > > > > RTP HEADER 40bytes > > FR HEADER-FRF12 8 bytes > > PAYLOAD 20 bytes > > TOTAL 68 bytes > > > > 68 * 8 = 544 bits > > BW 244 * 50 = 27,200 *BW = 27,2 kbps (rounded to 28)* > > SCENARIO 2 > > G729, cRTP Enabled, FRF.12 > > > > RTP HEADER 4bytes > > FR HEADER-FRF12 8 bytes > > G729 PAYLOAD 20 bytes > > TOTAL 32 bytes > > > > 32 * 8 = 256 bits > > 256 * 50 = 12,800 *BW = 12,8 kbps (Rounded to 13)* > > SCENARIO 3 > > g729 , cRTP Disabled, MLPPP > > > > RTP HEADER 40bytes > > FR HEADER 4 bytes > > MLPP HEADER 13 bytes > > G729 PAYLOAD 20 bytes > > TOTAL 77 bytes > > > > 77 * 8 = 624 bits > > 624 * 50 = 30,800 *BW = 30,8 kbps (Rounded to 31)* > > > > SCENARIO 4 > > g729 , cRTP Enabled, MLPPP > > > > RTP HEADER 4 bytes > > FR HEADER 4 bytes > > MLPP HEADER 13 bytes > > G729 PAYLOAD 20 bytes > > TOTAL 41 bytes > > > > 41 * 8 = 328 bits > > 328 * 50 = 16,400 *BW = 16,4 kbps (Rounded to 17)* > > > > > > Regards, > > > > > > > > > > -----Mensaje original----- > De: [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] En nombre de Robert Schuknecht > Enviado el: 03 October 2008 10:11 > Para: [email protected]; [EMAIL PROTECTED] > Asunto: [OSL | CCIE_Voice] Antw: Bandwidth Values used for FRTS > > > > Kevin, > > > > i use the following formula, from Vik and Mark: > > > > G.711 (20ms) and FRTS: > > > > Voice-Payload: 160Byte > > IP/UDP/RTP: 40Byte > > Frame-Relay: 4Bytes (Without LFI /With LFI 8Bytes) > > > > Total: 204 Bytes > > > > 204 Bytes * 8 Bits = 1632Bits/s > > 1632Bits/s * 50 Packets/s = 81600 Bits/s or 81,6 Kbits rounded up to > 82KBits/s > > > > You can find the Values for the different Header Sizes in the QOS SRND 3.3 > on Page 32/33. > > > > HTH > > /Robert > > >>> Kevin Porter<[EMAIL PROTECTED]> schrieb am Freitag, 3. Oktober > 2008 um > > 15:45 in Nachricht e0254cbcda19c4daab2c10dc62434881: > > > Hello All, > > > > > > When configuring QoS on Frame-relay what are the exact values to be used > > > for G711 calls and G729 calls when calculating the bandwidth value in > > > the Priority Queue and should this value be different if using straight > > > FRTS, FRF.12, MLPPP and if cRTP is invoked? Looking at some > > > documentation I see that with bandwidth values appear as follows: > > > > > > > > > > > > G711 (20ms Sample) with FRTS = 87.2 Kbps > > > > > > G711 (20ms Sample) with MLPPP or FRF.12 = 82.8 Kbps > > > > > > G711 (20ms Sample) using cRTP with MLPPP or FRF.12 = 67.6 Kbps > > > > > > > > > > > > G729 (10ms Sample) with FRTS = 31.2 Kbps > > > > > > G729 (10ms Sample) with MLPPP or FRF.12 = 26.8 Kbps > > > > > > G729 (10ms Sample) using cRTP with MLPPP or FRF.12 = 11.6 Kbps > > > > > > > > > > > > With the above information and a question that says "enter bandwidth > > > value for 1 G711 call and 1 G729" and using FRTS only, would you use > > > values of 88K (G711) and 32K (G729) to equal 120K in the Priority Queue? > > > > > > > > > > > > With the above information and a question that says "enter bandwidth > > > value for 1 G711 call and 1 G729" and using cRTP and FRF.12, would you > > > use values of 68K (G711) and 12K (G729) to equal 80K in the Priority > > > Queue? > > > > > > > > > > > > Thanks, > > > > > > Kevin > > > > > > > > > > > > Kevin Porter > > > Systems Engineer L4 > > > > > > Netelligent Corporation > > > 400 South Woods Mill Drive, Suite 105 > > > St. Louis, MO 63017 > > > > > > Office: (314) 392-6921 > > > Cell: (314) 852-1252 > > > Fax: (314) 392-9760 > > > > > > [EMAIL PROTECTED] > > > www.netelligent.com > > > Bridging The Gap Between Good and GREAT IP Communications! > > > > > > > -- Jacob Owen CCIE #14063 (R&S, Service Provider), CCDP, CCVP
